Alireza Aghayusefi; Mohammad Oraki; rogayeh mohammadi
Volume 1, Issue 2 , December 2015, , Pages 17-31
Abstract
Introduction: According to the studies, biological and endogenous factors can affect cognitive processes. The aim of the present research was to study the relationship between decision-making styles with the brain behavioral inhibition and activation systems and handedness. Method: The present study ...
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Introduction: According to the studies, biological and endogenous factors can affect cognitive processes. The aim of the present research was to study the relationship between decision-making styles with the brain behavioral inhibition and activation systems and handedness. Method: The present study was descriptive correlational research with regression analysis. The participants included 269 university students selected from Bonab and Tabriz Payame Noor Universities via multistage random sampling. They completed the decision-making styles questionnaire of Scott and Bruce (1995), the brain behavioral inhibition and activation systems (BIS/BAS) questionnaire of Carver and White (1994), and Edinburgh’s handedness questionnaire. Data were analyzed by Pearson’s product-moment correlation, standard multiple regression analysis, and moderated regression analysis. Findings: The results indicated that there is a relationship between handedness with brain behavioral inhibition and activation systems, and avoidant decision-making style. There was a significant relationship between behavioral inhibition system with all types of decision-making styles, and between behavioral activation system with all three types of avoidant, rational, and intuitive decision-making style except dependent style; and both brain behavioral systems were able to predict the decision making styles. Besides, moderated regression analysis verified the moderating effect of handedness in mediating the relation between behavioral inhibition system (BIS) and avoidant decision-making style. Conclusion: Overall, the results of the study confirm that cognitive processes, like decision-making, are directly or indirectly influenced by endogenous and biological factors such as brain behavioral systems and hemisphere superiority.
Amir Sanjabi; Jahangir Karami; Sima Eivazi
Abstract
Introduction: Executive functions are excellent cognitive functions that guide other cognitive activities of the brain. Executable functions help the individual to perform his learning tasks and intelligence operations. The purpose of this study was to investigate the effectiveness of cognitive rehabilitation ...
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Introduction: Executive functions are excellent cognitive functions that guide other cognitive activities of the brain. Executable functions help the individual to perform his learning tasks and intelligence operations. The purpose of this study was to investigate the effectiveness of cognitive rehabilitation of executive functions on improving the academic performance of probative students. Method: The present study was a semi-experimental design with pre-test and post-test with control group. The statistical population consisted of all probation students of Razi University of Kermanshah. A simple random sampling method was used to select 40 students. Subjects were randomly assigned to two groups of experimental and control. The mean of the last semester was used as a pre-test and The mean of the current semester was used as a post-test. The experimental group was involved in cognitive rehabilitation intervention using the captain log program (10 sessions and 2 sessions a week) and the control group did not receive intervention during this period. Data were analyzed using SPSS version 23 software. . The results of the data show that there was a significant difference between the two groups after the cognitive rehabilitation exercises in the mean score (0.01). Thus, it can be concluded that the cognitive rehabilitation of the executive functions Improving the academic performance of probative students has a significant effect.
Elham Sadat Naji; Mohsen Shokoohi-Yekta; Saeid Hassanzadeh
Abstract
Aim: The purpose of the present study was to investigate the effectiveness of working memory educational program on enhancing Phonological working memory and phonemic awareness performance of dyslexic students. This study was Quasi-experimental design with pre-test and post-test. The statistical population ...
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Aim: The purpose of the present study was to investigate the effectiveness of working memory educational program on enhancing Phonological working memory and phonemic awareness performance of dyslexic students. This study was Quasi-experimental design with pre-test and post-test. The statistical population was all the primary school students of 2 and 3 greads, with dyslexia who went to learning disorders centers in Tehran, 30 of them using convenience sampling and were assigned by random in experimental and control groups. The assessment tools included Working Memory Test Battery for Children (Gathercole & Pickering, 2001) and Phonological Awareness Test (Soleimani & Dastjerdi-Kazemi, 2010). The experimental group experienced the working memory educational program in 16 sessions, 30 to 35minutes. The obtained data were analyzed statistically by using of analysis of covariance (ANCOVA). Results showed significant differences between experimental and control group in both dependent variables at post-test. The results showed that training of working memory educational program improved Phonological working memory and phonemic awareness performance of dyslexic students.
Sohrab Amiri; Ali Isazadegan
Volume 1, Issue 2 , December 2015, , Pages 32-50
Abstract
Introduction: The purpose of this study was to assess the domains of cognitive abilities and affective styles of adjusting, concealing, and tolerating based on individual differences in morningness and eveningness personality tendencies. Method: For this purpose, initially 304 students of Urmia University ...
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Introduction: The purpose of this study was to assess the domains of cognitive abilities and affective styles of adjusting, concealing, and tolerating based on individual differences in morningness and eveningness personality tendencies. Method: For this purpose, initially 304 students of Urmia University were selected through multistage cluster sampling. Then morningness and eveningness types questionnaire was distributed among them to be answered. After analyzing the initial results, 60 participants were selected as individuals with morningness and eveningness and intermediate according to obtained scores in morningness and eveningness questionnaire. Finally, cognitive abilities and affective styles questionnaires were distributed individually among the participants in order to gather the data. The data were analyzed by using descriptive indicators, multivariate analysis of variance (MANOVA), one-way ANOVA and tukey post hoc test. Findings: Results indicated significant differences between dimensions of cognitive abilities based on tendencies of morningness and eveningness and intermediate and eveningness types in comparison with morning persons had higher abilities in some dimensions including inhibitory control, decision-making and attention. (P
Neuropsychology
Foad Niknasab; Fazlollah Bagherzadeh; Mahmoud Sheikh; Ali Moghadamzadeh; Davoud Hominian
Abstract
Children with developmental coordination disorder (DCD) display slowness, inaccuracy, and insufficient coordination in the performance of motor skills. Compared to children with normal development, they generally have poorer performance in tasks that require visual-motor integration. We evaluated the ...
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Children with developmental coordination disorder (DCD) display slowness, inaccuracy, and insufficient coordination in the performance of motor skills. Compared to children with normal development, they generally have poorer performance in tasks that require visual-motor integration. We evaluated the effect of tDCS stimulation on visual-motor integration in children with DCD. In this quasi-experimental study, featuring a pre-test-post-test design, 40 students with DCD aged 7-10 years were selected according to the inclusion criteria and randomly assigned into two groups: tDCS stimulation and artificial stimulation. In the pre-test, participants took a visual-motor integration test. The intervention phase was administered for 5 consecutive days. Each day, the subjects underwent either electrical stimulation in the motor cortex (anode at C3 and cathode at Fp2) or artificial stimulation. The post-test was administered in the last session. Short-term and long-term follow-ups were performed 1 day and 42 days after the post-test, respectively. Repeated measures ANOVA was used to analyze the data. The results showed that electrical stimulation of the motor cortex significantly improves the visual-motor integration of children with DCD. The follow-up results supported the persistence of motor-visual integration in these children. In general, the results emphasized the effectiveness of tDCS exercises on motor-visual integration in children with DCD.
mohammad reza moradi; Seyed mehran mirbod
Abstract
Aim: one type of learning disorder is Dyslexia which refers to the defect in the acquisition of a person's reading skills. The purpose of this study was to investigate the effectiveness of training of jager's knowledge and metacognitive skill program on Improving Neuropsychological skills in Students ...
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Aim: one type of learning disorder is Dyslexia which refers to the defect in the acquisition of a person's reading skills. The purpose of this study was to investigate the effectiveness of training of jager's knowledge and metacognitive skill program on Improving Neuropsychological skills in Students with Dyslexia. Method: this semi experimental study carried out with pre-test post-test design with control group. Accordingly, using the stratified random sampling method, from among dyslexic students of the fourth grade primary schools in Isfahan in 2018-2019, 30 students were selected regarding assigned inclusion criteria and then, and they were assigned randomly into experimental (15participants) and control(15 participants) groups. For data collection, the fourth edition of the Wechsler Intelligence Scale for children (WISC-IV) and Connors Neuropsychological Scale were used. Data were analyzed using MANCONA and using SPSS software version 23. Findings: Data analysis showed that training of jager's knowledge and metacognitive skill program is effective in improving neuropsychological performance of dyslexic students (p<0.01).Conclusion: training of jager's knowledge and metacognitive skill program can be an effective therapeutic approach to improve the neuropsychological skills of dyslexic students.
Hassan Gharibi; Zoleykha Gholizadeh; Isa Hekmati
Volume 1, Issue 3 , March 2016, , Pages 21-37
Abstract
Introduction: The purpose of this study was to examine the effectiveness of verbal self-instruction on cognitive functioning (inhibition, working memory, and set shifting) of ADHD children. Method: To this end, 40 children with ADHD were selected purposefully from among the clients of Sanandaj Psychological ...
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Introduction: The purpose of this study was to examine the effectiveness of verbal self-instruction on cognitive functioning (inhibition, working memory, and set shifting) of ADHD children. Method: To this end, 40 children with ADHD were selected purposefully from among the clients of Sanandaj Psychological Clinics and were randomly categorized in experiment and control groups. The experimental group received 12 sessions of training in self-instruction, but the control group was kept in waiting-list. Child Symptom Inventory (CSI-4), Wisconsin Card Sorting Test (WCST), Victoria Stroop Color-Word test, and Letter-Number Span test were administered before and after the intervention in both control and experimental groups. Findings: Analysis of Covariance showed that self-instruction had significant effect on inhibition (reaction time and error interference of Stroop test) and working memory (Letter-Number Span test) of Children with ADHD (p
razieh hojabrnia; shahzad tahmasebi boroujeni
Volume 4, Issue 13 , August 2018, , Pages 21-34
Abstract
Aim: Neurofeedback training is known as a useful and inexpensive tool for enhancing and improving in memory types, however, its effect on the visual and spatial memory has no been investigated yet. Therefore, the aim of this study was to improve visual and spatial ...
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Aim: Neurofeedback training is known as a useful and inexpensive tool for enhancing and improving in memory types, however, its effect on the visual and spatial memory has no been investigated yet. Therefore, the aim of this study was to improve visual and spatial memory because of neurofeedback training with an emphasis on decreasing beta wave and increasing SMR wave. Method: The present study’s design was a within group with a pre-test post-test method. The research method was semi-experimental and in terms of purpose was applied. To did this research, 11 students (mean age: 27.63 ± 2.76) participated voluntarily in this study. By obtaining informed consent, the visual memory pre-test was first taken from the subjects through short-term visual test of the Vienna and spatial memory through the LM-01 spatial memory device. Then subjects perform for 5 sessions of neurofeedback training protocol with an emphasis on decreasing beta wave and increasing SMR wave. After training completion, the post-test was done. The data were analyzed by paired t-test at a significant level of p≤0.05. Results: The results showed that neurofeedback training significantly improved visual memory (P≤0.020) and spatial memory (P≤0.013). Conclusion: Therefore, neurofeedback training can be considered as useful tools for improving cognitive abilities such as memory.
Alireza Pirkhaefi
Abstract
Aim: The aim of this research was to determine the effectiveness of Clinical Creativity Therapy Model on improvement of executive function and decrease of depression in the depressed patients. Method: The research method was semi-experimental and study conducted in the form of a pretest-posttest with ...
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Aim: The aim of this research was to determine the effectiveness of Clinical Creativity Therapy Model on improvement of executive function and decrease of depression in the depressed patients. Method: The research method was semi-experimental and study conducted in the form of a pretest-posttest with control group design and follow-up. The population was included the whole of Tehran depressed patients that refer to a psychiatric consultation centers in 1394and have document folder. 30 women and 20 men suffered from depression was randomly selected and replaced into treatment and control group. Research instruments were concluded Beck depression inventory (BDI-II), Torrance test of creativity thinking (Figural form), N-Back and Stroop test. A course of 20 include 10 session (2-hour-length session) was coducted of creativity therapy duration 4 weeks. Result: Analysis of covariance show that executive function and depression between treatment and control group is significant and effectiveness Clinical Creativity Therapy Model was stable in follow-up. Conclusion: results research show that Instrument of Clinical Creativity Therapy Model can improve the executive functions and decrease depression in the depressed men and women patients. Thus it is suggested that this model be use to improve the status depressed patient. The clinical creativity therapy model is useful and practical technique for psychologist and mental health specialists.
Jalal Dehghanizade; Masoud Rahmati Arani
Abstract
Introduction: Children with intellectual disabilities are at heightened risk for mental disorders, but disruptive behavior disorders appear to be the most prevalent. The present study aimed to determine the effect of a selective perceptual-motor exercise course on the neuropsychological skill of intellectual ...
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Introduction: Children with intellectual disabilities are at heightened risk for mental disorders, but disruptive behavior disorders appear to be the most prevalent. The present study aimed to determine the effect of a selective perceptual-motor exercise course on the neuropsychological skill of intellectual disability children. Method: The study used pre- and posttest experimental research design with a control group. Total of 30 children with intellectual disability (7–12 years) whit 50-70 of intelligence quotient were recruited with 15 assigned for the exercise group and 15 for the control group, separately. All the participants were assessed using the Conners Teachers Rating Scale (CTRS). The exercise program consisted of selected perceptual-motor activities for 60 min, thrice per week for 8 weeks. Results: The results showed that there is not a significant difference between the two groups in pre-test; while after the intervention significant improvements were found in the exercise group in attention, sensory-motor performance, memory, executive function, cognitive ability, visuospatial performance and andacademic performance of reading and mathematics. Conclusion: Results indicate that a Brailletonik exercise program can have a positive effect on the cognitive functions of persons with intellectual disability. However, this positive effect can support the role and importance of perceptual-motor activity to improve motor and cognition function of well-being among children with intellectual disability.
Masoud Dehghan; Nima Moshtaghi
Abstract
Aim: The process of revision in speech is one of the most common symptoms of discourse impairing in patients with dementia of the Alzheimer's type. The purpose of this study is to investigate Revision in the discourse of senile dementia of the Alzheimer’s type based on Schegloff, Jefferson, and ...
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Aim: The process of revision in speech is one of the most common symptoms of discourse impairing in patients with dementia of the Alzheimer's type. The purpose of this study is to investigate Revision in the discourse of senile dementia of the Alzheimer’s type based on Schegloff, Jefferson, and Sacks. Method: This study was a quantitative and ex post facto type that has been done in one of nursing homes in Kermanshah in 2019. The statistic population of this study included 20 subjects (10 senile dementia of the Alzheimer’s’ type and 10 normal elderly subjects) who were matched based on age (63-75), gender (male and female), illiteracy, and Kurdish speaker (Kalhori dialect) after studying their medical documents. To determine the severity of dementia, the Clinical Dementia Rating Scale was administered and subjects with a score (0.5 ≤ score< 2) were selected. The subjects answered the questions about their families, daily activities, lives, and celebrating Eid Nowruz. Their interviews were recorded and transcribed and then they were coded based on Dijkstra model. Independent t-test was used to show the statistic results. Results Independent t-test showed a significant difference between two groups of patients and healthy elderly. In doing so, trouble source (P=0.003), repair initiator (p<0.05) (all cases except possible repair understanding by listener) and repairs (p<0.05) (all cases except substitution) were reported. Conclusions: The results showed that the discourse aspect of trouble source has remarkable frequency, and the most frequency about two categories including repair initiator and repairs were respectively
Mhdieh Keshmirshekan; Salar Faramarzi; ahmad abedi
Abstract
The aim of this study was to improve the neuropsychological skills of students with impaired written expression using the Phelps sentence guide program .The Quasi-experimental research method was pre-test and post-test with the control group. For this purpose, according to the criteria for entering the ...
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The aim of this study was to improve the neuropsychological skills of students with impaired written expression using the Phelps sentence guide program .The Quasi-experimental research method was pre-test and post-test with the control group. For this purpose, according to the criteria for entering the research, using a multi-stage sampling method, among the students with expressive writing disorder in the fifth grade of the elementary school in Yazd, 30 people were selected for writing and randomly assigned to two groups of control and experiment. The experimental group received 13 sessions of 60-minute training sessions on the Phelps program. The instruments used were the Wechsler Intelligence Scale for Children (Fifth Edition) and the Connors Parent Form Questionnaire. The data were analyzed by covariance analysis. Analysis of the data showed that there was no significant difference between the performance of the experimental and control groups in neuropsychological skills except language skills (P> 0.001) while there was a significant difference in language skills (P< 0.001).The results showed that the Phelps sentence instruction program is not effective on the neuropsychological skills of students with learning disabilities in written expression in the areas of attention, memory, sensory-motor functions and executive functions other than language .This method can be used as an intervention and educational method to improve language skills that are a prerequisite for writing.
Maliheh NikNam; MohammadReza Dostan
Volume 3, Issue 11 , March 2018, , Pages 23-38
Abstract
Aim:The aim of this study was to evaluate the effects of the spatial and temporal bandwidth feedback on reducing error of the temporal and spatial accuracy of the fit’s speed accuracy trade off task. Methods: The total participant in the present study was all healthy young women 17 to 25 years ...
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Aim:The aim of this study was to evaluate the effects of the spatial and temporal bandwidth feedback on reducing error of the temporal and spatial accuracy of the fit’s speed accuracy trade off task. Methods: The total participant in the present study was all healthy young women 17 to 25 years (N=48) and right-handed and voluntarily participated in the study and after the pre-test were divided equally into 4 groups of 12 and they practiced 4 blocks of 10 trials which trial 40 were recorded as a post-test. The apparatuses consisted one note pad‚ big size tablet‚ laptop and metronome. The first group workouts were offered along with providing bandwidth feedback related to spatial accuracy. This means that if the number of hits the error was more of 4 hit‚ was feedback related to the spatial accuracy. The third group workouts was along with the feedback from temporal accuracy‚ this means that if the average time between hits was more than 250 ms‚ feedback related to the temporal accuracy was offered. Second and fourth groups also were paired for the first and third groups. Findings: The results of ANOVA with repeated measure at the significance level of 0.05 showed that providing feedback related to the temporal accuracy has significant effect on reducing of the temporal accuracy error‚ and as well as providing feedback related to the spatial accuracy has significant effect on reducing of the spatial accuracy error. Conclusion: There wasn’t significant difference between the bandwidth and paired groups. It seems with increasing speed‚ temporal error has dropped that is one of exceptions of speed accuracy trade off.
shima mohamadi; farangis demehri; Mohsen Saeidmanesh
Abstract
Introduction:In children with attention deficit hyperactivity disorder, defects in executive functions are also recognized.The aim of this study was to measure the effectiveness of cognitive rehabilitation on improvement of executive function of response inhibition in children with attention deficit ...
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Introduction:In children with attention deficit hyperactivity disorder, defects in executive functions are also recognized.The aim of this study was to measure the effectiveness of cognitive rehabilitation on improvement of executive function of response inhibition in children with attention deficit hyperactivity disorder (ADHD). Methode: The present study was semi-experimental design with pre-test and post-test with control group. In this study, children aged 7 to 12 years who were diagnosed with (ADHD) by psychological experts of the counseling center of Kermanshah were selected. 20 of these children (10 girls and 10 boys) were randomly assigned to two experimental and control groups. The experimental group was subjected to 12 sessions of The Captain's Log Mind Power Builder and the control group did not receive treatment. After the last session of treatment, both groups were re-evaluated. Data were analyzed by covariance analysis using SPSS_23 software. Findings: The findings showed that cognitive rehabilitation was effective on improvement of executive function of response inhibition in children with attention deficit hyperactivity disorder. Conclusion: Therefore, we recommend a cognitive rehabilitation program for improving the executive function of response inhibition of children with ADHD.
Ahmad Alipour; Sakineh Joolayiha; Reza Ranjbaran; Nazila Eyvani
Volume 2, Issue 5 , September 2016, , Pages 25-38
Abstract
Introduction: Manual preference in the students affects their learning in the school and daily life. Objective: The purpose the present study was to test whether there is a relationship between manual preference and sexuality with finger counting habits in (74) primary school children. Method: Manual ...
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Introduction: Manual preference in the students affects their learning in the school and daily life. Objective: The purpose the present study was to test whether there is a relationship between manual preference and sexuality with finger counting habits in (74) primary school children. Method: Manual laterality was evaluated with The Handedness Questionnaire of Chapman and Chapman (1987) and finger counting habits in children were examined with interview. Findings: The results indicated that whereas most left-handers started counting with the left hand, most of the right-handers started with the right hand. The transition between the two hands during the counting showed equal proportions of symmetry-based and spatial continuity-based patterns among the left-handers and right-handers. No significant difference was found between boys and girls in finger counting habits. These findings showed that manual laterality contributes to finger counting directionality. Conclusion: Taken together, these results indicate that finger-counting habits integrate biological and cultural information.
Jafar Bahadori Khosroshahi
Volume 3, Issue 9 , September 2017, , Pages 25-40
Abstract
Introduction: The purpose of this study was to investigate the effect of perceptual-motor exercises with gross and fine motor skills in children with cerebral palsy. Method: Research design was quasi-experimental and pretest-posttest with control group. The study sample consisted of cerebral palsy children ...
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Introduction: The purpose of this study was to investigate the effect of perceptual-motor exercises with gross and fine motor skills in children with cerebral palsy. Method: Research design was quasi-experimental and pretest-posttest with control group. The study sample consisted of cerebral palsy children 7 to 15 years of primary school in Tabriz exceptional that 20 people eligible to take part in the study were selected randomly were assigned to two experimental and control groups (10 in experimental group and 10 in control group) were replaced. After the experimental and control groups were matched for age, gender, IQ, social and economic level were chosen. To collect the test data before and after the intervention were Ossietzky Lincoln motor efficiency. Data analysis was performed using analysis of covariance. Findings: The results showed that in perceptual-motor skills gross and fine motor training in children with cerebral palsy has effect. In fact, perceptual-motor exercises to improve fine and gross motor skills in children with brain paralysis. Conclusion: The perceptual-motor intervention could improve motor skills in children with cerebral palsy used.
roodabeh gholami; mahnaz esteki; masoud nosratabadi
Volume 3, Issue 10 , January 2018, , Pages 25-38
Abstract
Aim: The aim of this study was to discriminant subtypes of ADHD by means of Quantitative Electroencephalography results. Methods: 100 ADHD children aged between 8-12 years old with a diagnosis of ADHD based on Integrated Visual and Auditory Continuous Performance Test (IVA) results were included in this ...
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Aim: The aim of this study was to discriminant subtypes of ADHD by means of Quantitative Electroencephalography results. Methods: 100 ADHD children aged between 8-12 years old with a diagnosis of ADHD based on Integrated Visual and Auditory Continuous Performance Test (IVA) results were included in this study. We had three types of ADHD based on IVA test including of inattentive type, hyperactive type and combined type.EEG evaluation was performed on these children, using 21 channel EEG device, and their brain waves were recorded from 19 point of their head. Absolute power and relative power of EEG data were calculated for each of patients. We used MANOVA and Discriminate analysis for analysis of data. Findings: The results showed that there is a positive relationship between brain wave patterns in QEEG and different kinds of ADHD diagnosed by IVA test. Relative power (RP) of theta wave could discriminant inattentive type from hyperactive type in ADHD children .there was more theta wave at O2 (Right occipital) in hyperactive type in comparison to inattentive and combined type. Conclusion: considering that theta in O2 (Right occipital) in hyperactive type is more than inattentive and combined type, Therapist who don’t have access to QEEG evaluation for diagnosis , can be effective in alleviating hyperactive symptoms in hyperactive type by reduction of theta wave in occipital region, particularly in o2.
Hamid Toreyfi hosseini; Manijeh Shehni yailagh; Ali Reza Haji Yakhchali; sirous allipour
Abstract
Aim :The aim of this study was to determine the effectiveness of an empowerment program based on self-regulation executive functions on the reading performance of dyslexic primary school students. Method: The study employed quasi-experimental design, using pretest, posttest and follow up with the control ...
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Aim :The aim of this study was to determine the effectiveness of an empowerment program based on self-regulation executive functions on the reading performance of dyslexic primary school students. Method: The study employed quasi-experimental design, using pretest, posttest and follow up with the control group. The population of the study was all dyslexic boys students in the fourth grade of primary school in Islamshahr city in the academic year of 2017-18. 38 students were selected through combined sampling method (Census and Cluster sampling), and were randomly divided into an experiment group and a control group (20 in the experiment group and 18 in the control group). The experimental group received an intervention program in 2 months (15 sessions of 50 minutes, and 2 months of environmental modifications and practical interventions that was integrated into daily curricula). Data were analyzed by multivariate analysis of covariance, one-variable covariance. Findings: The results showed there were significant differences between reading speed, reading accuracy and comprehension students with and without dyslexia. Conclusion: the empowerment program based on self-regulation executive functions can improve the reading performance of dyslexic primary school students.
Majid Ghoshuni; Hassan Gharibi; Iraj Vosough
Abstract
Introduction: In this study the features extracted from EEG signal and Integrated Visual and Auditory test (IVA) was used to determine the level of attention deficit and impulsivity. Methods: Participants were selected from children with ADHD using the convenience sampling method. 50 children (32 boys ...
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Introduction: In this study the features extracted from EEG signal and Integrated Visual and Auditory test (IVA) was used to determine the level of attention deficit and impulsivity. Methods: Participants were selected from children with ADHD using the convenience sampling method. 50 children (32 boys and 18 girls) with mean and standard deviation of age 1.90 ± 9.17 years have been selected. Subjects first participated in the IVA test. Then, EEG signal was recorded with eyes-closed and eyes-open conditions. Spearman correlation and multiple linear regression were used to evaluate the fetures and prediciting attention deficit and impulsivity. Results: Results showed, all parameters extracted from IVA had a significant negative correlation (p<0.05) with the level of attention deficit in ADHD children. Also, theta beta ratio of EEG in the closed-eye condition had a significant positive correlation (p<0.05) with the impulsivity index. In the regression results, the visual focus index of IVA was able to predict attention deficit in children with ADHD (R2=0.391, p<0.00001). Also, the reaction time of children in response to visual and auditory stimuli in IVA test, and the theta beta ratio of brain waves each separately were able to predict impulsivity (R2=0.22, p<0.05). Conclusion: Therefore, IVA variables could have played a more effective role in predicting the level of attention deficit. But the performance of the theta beta ratio of brain waves and the IVA test was similar in predicting the level of impulsivity. Therfore, IVA variables and theta beta ratio of brain waves can play an effective role in predicting ADHD.
Neuropsychology
Amir Hossien Mehrsafar; Ali Moghadamzadeh; Hassan Gharayagh Zandi; Miguel Angel Serrano Rosa; Fazlollah Bagherzadeh
Abstract
Purpose: The present study was conducted with the aim of determining the effect of mindfulness intervention on perceived stress and salivary immunoglobulin A (sIgA) levels of elite wrestlers during the competition period. Methods: 20 male elite freestyle wrestlers (age: 22.36±2.38) participated ...
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Purpose: The present study was conducted with the aim of determining the effect of mindfulness intervention on perceived stress and salivary immunoglobulin A (sIgA) levels of elite wrestlers during the competition period. Methods: 20 male elite freestyle wrestlers (age: 22.36±2.38) participated in this study and were randomly assigned to experimental (mindfulness-based intervention) and control groups. Two official competitions were used as pre-test and post-test. Perceived stress was measured by the short version of Perceived stress scale. Awakening and competitive levels of salivary immunoglobulin A were evaluated using the ELISA method. The experimental group participated in 8-week mindfulness intervention (two sessions per week). Data were analyzed using repeated measures ANOVA and independent t-test. Results: The results showed that after the 8 weeks of intervention, perceived stress was reduced in the experimental group. Hoewer, the awakening and competitive levels of immunoglobulin A did not show a significant difference compared to the control group from pre-test to post-test. Conclusion: In general, it can be concluded that mindfulness intervention can be a strategy to reduce the perceived stress in elite wrestlers during the competition period. Future studies with larger samples with other disciplines can better demonstrate the comprehensiveness of the results.
alireza pirkhaefi; tohid akbarvand
Volume 1, Issue 1 , September 2015, , Pages 26-40
Abstract
Introduction: The present study was done with the objective of determining the efficiency of neuropsychological rehabilitation method of sensory integration in improving executive functions of children with disorder in shortcomings attention/proactive. Methods: The survey is pre-test post-test model ...
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Introduction: The present study was done with the objective of determining the efficiency of neuropsychological rehabilitation method of sensory integration in improving executive functions of children with disorder in shortcomings attention/proactive. Methods: The survey is pre-test post-test model with two groups, one experimental group and one control group. The research sample consisted of 30 elementary school boys and girls, at the age of 7 to 11, who were selected from among available children suffering ADHD disorder (Attention Deficit Hyperactivity) in the academic year 1392-1393. This students were equally on the basis of recognizing values and intelligence and were randomly divided to two equal group; i.e. experimental and control groups. The research instruments for gathering the data were the questionnaire of Child Symptom Inventory (CSI-4), and Color Matrixes of Intelligence Test of Riyon. And to evaluate the executive functions (planning, attention, confining response), London Tower Test and Continuous Function test were used, the interrupting remedy was done on the basis of sensing alignment method and consisted of six weeks of exercising (SI). Findings: the data were analyzed by means of SPSS programs and Covariance analysis methods. The results reveal that sensing alignment in the post-test caused meaningful improvement in executive functions (planning, attention, confining response), (P
. .; . .
Volume 2, Issue 6 , December 2016, , Pages 27-44
Abstract
Introduction: The aim of the present study was to investigate the role of selective attention, test anxiety and cognitive performance in students' working memory. Method: The population of this study consisted of all high school students in Tabriz, who were studying in 2015-2016. A sample of 353 students ...
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Introduction: The aim of the present study was to investigate the role of selective attention, test anxiety and cognitive performance in students' working memory. Method: The population of this study consisted of all high school students in Tabriz, who were studying in 2015-2016. A sample of 353 students were selected through cluster sampling. To collect the data from the Stroop test, Spielberger Test Anxiety Inventory and the Wechsler test and n-back test were used. Pearson correlation and multiple regression analysis methods (simultaneous) were used for data analysis. Findings: The results showed that there is a significant positive correlation between working memory and selective attention. However, the correlation between working memory and error is negative. There is negative and significant relationship between test anxiety and working memory. In addition, there is positive and significant relationship between cognitive functions of computing, image adjustments and cubic design, with working memory. There was no relationship between vocabularies with working memory. Also, regression analysis showed that the scores were predictive variables (selective attention test anxiety and cognitive functions) and 19% of working memory changes was significantly predicted. Conclusion: Therefore, it can be concluded that through increasing selection attention and cognitive functioning test anxiety can be reduced and the students working memory is improved.
Abasali Hosseinkhanzadeh; Mona Latif Zanjani; Mahboobe Taher
Volume 2, Issue 7 , February 2017, , Pages 27-46
Abstract
Introduction: The aim of this study was to investigate efficacy of computer-assisted cognitive remediation on improvement of the executive functions and reading performance of students with dyslexia. Methods: The research methodology is an experimental study with pretest-posttest design with experimental ...
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Introduction: The aim of this study was to investigate efficacy of computer-assisted cognitive remediation on improvement of the executive functions and reading performance of students with dyslexia. Methods: The research methodology is an experimental study with pretest-posttest design with experimental and control groups. Statistical population consisted of all primary school dyslexic students in Rasht in 2014-2015 academic years that among them a sample of 30 students were selected by random sampling and were assigned in both control and experimental groups. To collecting data intelligence test (Wechsler, 2003), the formal reading and dyslexia test (Kormi Noury and Moradi, 2008), and Wisconsin card sorting test software (Shahgholian et al., 2011) were used. In this study, computer-aided cognitive remediation program was trained to the experimental group, during the first 11 sessions, while the control group did not receive training in these areas. Findings: Data analysis using MANCOVA showed there are significant difference in the executive functions and reading performanc in experimental and control group. The results showed computer-assisted cognitive remediation is caused improvement of the executive functions and reading performance and their component's (p. Conclusion: According to the results computer-assisted cognitive remediation with features such as color, sound, motion, instant feedback, extended range of attention, increasing the power of self-regulation, and motivating dyslexic students has been able to improve executive functioning and reading performance in students with dyslexia.
Samira Hassanzadeh; ahmad alipoor; hossein zare; mahdi Sharif_Alhoseyni
Abstract
Aim: The aim of this study was the effectiveness of cognitive rehabilitation on Improvementeveryday memory of patients with ischemic stroke.Method: This study was quassi experimental one with pre-test and post- test. The sample included 20patients with ischemic stroke who were randomly selected.They ...
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Aim: The aim of this study was the effectiveness of cognitive rehabilitation on Improvementeveryday memory of patients with ischemic stroke.Method: This study was quassi experimental one with pre-test and post- test. The sample included 20patients with ischemic stroke who were randomly selected.They hadnot significant difference in terms of the duration of the disease, the type of stroke and Neurological problems, then they Were assigned randomly into two experimental and control groups.Cognitive assessment of patients including pre-intervention, evaluation immediately after intervention and five weeks after intervention using Sunderland everyday memory Questionnaire (1983) was done.The experimental group received cognitive rehabilitation program as one-hour weekly sessions for eight weeks and the control group did not receive any intervention.Data were analyzed by Repeated Measure.Findings:Results indicated that cognitive rehabilitation had a positive effect onimproving the everyday memoryfunction of patients with ischemic stroke in the experimental group(pConclusion:according to the resultthere is evidence for the effectiveness of cognitive rehabilitation program in the everyday memory in patients with stroke. Cognitive rehabilitation can improve memory disorders, and have a positive effect on memory performance in these patients.
elham asbaghi; parvin rafienia; sahrok mkvand hossini; parviz sabahi
Volume 3, Issue 8 , June 2017, , Pages 29-50
Abstract
Introduction: The aim of present study was investigating effect of rTMS on improvement working memory and symptom of bipolar disorder in subjects. Method: To do so, 30bipolar disorder were selected among Tehran clinics’ clients using Purposeful sampling. For assessing working memory, N-back test ...
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Introduction: The aim of present study was investigating effect of rTMS on improvement working memory and symptom of bipolar disorder in subjects. Method: To do so, 30bipolar disorder were selected among Tehran clinics’ clients using Purposeful sampling. For assessing working memory, N-back test was conducted by all subject For assessing bipolar symptoms, Beck Depression Inventory and Young Mania Inventory was conducted by all subjects. Subjects were divided into two groups; 15 subjects received rTMS and rest of them that is called control group didn’t receive it. Training sessions were conducted for 20 days; each day one session -20 minutes. Data were analyzed using Analysis of Covariance (ANCOVA). Findings: The results showed that effect of rTMS on working memory performance and bipolar symptoms improvemen thas been effective. Conclusion: The results of this study showed that rTMS can improve working memory performance and improve symptomsin subjects with bipolar disorder.
