samane jasbe; Alireza Pirkhaefi
Abstract
Aim: The purpose of this study was comparing executive functions in patient with schizophrenia and obsessive-compulsive disorders with normal individual. Method: The research design was post- facto. The sample of this study included 32 patients with schizophrenia disorders, 31 patient’s OCD in ...
Read More
Aim: The purpose of this study was comparing executive functions in patient with schizophrenia and obsessive-compulsive disorders with normal individual. Method: The research design was post- facto. The sample of this study included 32 patients with schizophrenia disorders, 31 patient’s OCD in Shahid Lavasani Hospital and 30 participants from normal population. The color-word Stroop test, the N-back test, and the Wisconsin Cards Sorting Test were also used to collect the research data. Data were analyzed using multivariate analysis of variance. Results: The results of this study showed significant differences between the groups in selective attention and in the number of correct responses, so that the normal group had higher scores than patient groups and OCD group achieved higher scores schizophrenic group. In shift attention (completed trials and correct responses) the results showed that the normal group had higher scores that patient groups, and OCDs achieved higher scores than schizophrenics. However, in preservation subscale, the schizophrenic patients were higher than OCD and normal groups. Finally, in working memory, difference between the groups didn’t reach significant. Conclusion: The results of this study revealed higher attention deficits in schizophrenia and OCD patients in comparison to normal controls. Furthermore, schizophrenics had poorer function on selective and shifting attention than OCD patients.
Maryam Zamani; Hossein Zare; ahmad alipour; mahdyeh rahmaniyan; Vahid Malekian
Abstract
Introduction: Computer games, due to their expansion and popularity, have become one of the favorite topics of researchers in the field of brain and its function. The aim of this study was to evaluate computer skills in computer games and to examine the two networks of anterior and posterior attention. ...
Read More
Introduction: Computer games, due to their expansion and popularity, have become one of the favorite topics of researchers in the field of brain and its function. The aim of this study was to evaluate computer skills in computer games and to examine the two networks of anterior and posterior attention. Method: The present study is a quasi-experimental method and two groups of profetional and notice participate in computer games. participant in both groups responded to the task during the EEG recording. The components studied in this study were the P1 component in the posterior attentional network and the posterior area and the PP2 component in the anterior attentional network and pre-forehead areas. Results: The results showed that the two profetional groups and so on are different in response to computer games and the notice group showed more activity in the face of stimuli. While the profetional group performed better and used both attention networks simultaneously. The results also showed that the two anterior and posterior attentional networks act differently in the face of stimuli, and the anterior network is more active in focusing attention. Conclusion: According to the obtained results, it can be said that computer games are associated with less activity and better but non-specialized performance in the brain, and this difference can be clearly seen in the anterior attention network.
Maryam Ranjbar; saeid Hassanzadeh; Aliakbar Arjmandniya
Abstract
Aim: This study was to development and efficacy of Working Memory, Attention and Inhibition in children with executive dysfunction. Method: In this semi-experimental study(pretest-posttest with control group) design, 23 students with Executive dysfunction were selected using the non-random purposive ...
Read More
Aim: This study was to development and efficacy of Working Memory, Attention and Inhibition in children with executive dysfunction. Method: In this semi-experimental study(pretest-posttest with control group) design, 23 students with Executive dysfunction were selected using the non-random purposive sampling method and randomly divided into the experimental and control groups. In order to identify the needs and components of the Cognitive Rehabilitation Program, systematic review of the existing research was carried out and finally, based on the existing theoretical and research foundations of the computerized Cognitive Rehabilitation Program. The executive function training program was performed in 18 sessions(45 minutes) using the computerize training program in the experimental group. Behavior Rating Inventory of Executive Function(BRIEF–P) was used to assess executive dysfunction, the HAFBAK Tests were used to assess the working memory and using the IVA-2 test for assess attention. Also, analysis of covariance was used to examine the effectiveness of intervention. Results: The results showed that after the intervention program, the improvement working memory and attention(P<0/05). Instead, no significant differences were observed in inhibition between the two groups after the intervention(P<0/05). Conclusion: Therefore, computerized cognitive rehabilitation, as a complementary therapeutic approach along with other therapies, can be used in conventional interventions to enhance executive functions.
mohammad reza moradi; mahboobeh kiany
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 effectivenessofNeuropsychological Practical exercises on Improving executive functions and attention span in Students with Dyslexia. ...
Read More
.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 effectivenessofNeuropsychological Practical exercises on Improving executive functions and attention span in Students with Dyslexia. Method: this semi experimental study carried out with pre-test post-test design with control group.Accordingly, using the purposive sampling method, from among dyslexic students of the fourth grade primary schools in Isfahan in 2019-2020, 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), Neurological questionnaire of Coolidge and Test of Attention & Concentration were used. Data were analyzed using MANCONA and using SPSS software version 23. Findings:Data analysis showed that Neuropsychological Practical exercises is effective in improving executive functions and attention span of dyslexic students (p<0.01). Conclusion: Neuropsychological Practical exercises can be an effective therapeutic approach to improve the executive functions and attention span of dyslexic students.
Mahdi Sahragard; Ahmad Alipour; hoseyn zaree; rasool roshan
Abstract
Aim: the aim of this study is to evaluate the effectiveness of Powell's cognitive rehabilitation in improving executive functions, memory, and attention to veterans with PTSD. Methods: This study was carried out on 24 veterans with PTSD in two experimental and control groups. For conducting the study, ...
Read More
Aim: the aim of this study is to evaluate the effectiveness of Powell's cognitive rehabilitation in improving executive functions, memory, and attention to veterans with PTSD. Methods: This study was carried out on 24 veterans with PTSD in two experimental and control groups. For conducting the study, PSSI test, Wisconsin Card Test, Stroop test, and working memory test were used. Statistical analysis was performed by analysis of covariance. Results: The results of analysis of covariance showed that Powell's cognitive rehabilitation(PCR) method is effective in improving preservative error, number of floors completed, and sequence, forward and reverse vastness of space, time interference error, and error interference of mistakes. Conclusion: PCR is effective in improving executive function, memory and attention to veterans with PTSD.
ahmad alipoor; rogayeh mohammadi
Abstract
Introduction:The aim of the present quasi-experimental research with pre-test and post-test design with control group study was to examine the effectiveness of computer-assisted cognitive remediation on executive functions and cognitive abilities of students with diabetes. Method: 18 Students with diabetes ...
Read More
Introduction:The aim of the present quasi-experimental research with pre-test and post-test design with control group study was to examine the effectiveness of computer-assisted cognitive remediation on executive functions and cognitive abilities of students with diabetes. Method: 18 Students with diabetes were selected from the Diabetes Association of Bonab city and randomly assigned into two experimental and control groups of nine people. Executive functions and cognitive abilities of both experimental and control groups were measured with research tools in the pre-test and post-test steps. The tools used in this study were computer software for memory and attention refinement, the software version of the Wisconsin Card Sorting Test, and the Coglab software (change detection from the attention test set, and signal detection of Perception test set). For intervention, the experimental group was individually under cognitive remediation in 10 half-hour sessions (twice a week) by using attention and memory improvement software. Findings: Data were analyzed using one-way covariance analysis. The results indicated an increase in cognitive abilities (attention for the discovery of change and perception) in the experimental group. However, the applied intervention did not increase the executive functions of the experimental group. Conclusion:The study concluded that although the intervention and the number of meetings prescribed in this study were useful for promoting cognitive abilities, they did not have enough power to improve its executive functions.
mozhgan fallah; Yousef Moghadas Tabrizi; Hassan gharayagh zandi
Volume 4, Issue 13 , August 2018, , Pages 97-108
Abstract
Introduction: Achieving the optimal performance of attention is the most important goals among athletes in the race. The purpose of this study was to investigate the effect of neurofeedback training on attention and performance in free throw shooting in nonprofessional athletes. Method: 24 athletes ...
Read More
Introduction: Achieving the optimal performance of attention is the most important goals among athletes in the race. The purpose of this study was to investigate the effect of neurofeedback training on attention and performance in free throw shooting in nonprofessional athletes. Method: 24 athletes in both genders were voluntarily participated in this study. In the pre- test, SELECTIVE AND DIVIDED ATTENTION TEST and also basketball free throw test was performed. The experimental group practice alpha/ theta and theta/ SMR protocols for ten sessions, then post- test was performed. Data were analyzed using two related samples tests, Mann-Whitney U and ANCOVA. Findings: The results showed significant changes in increase the attention and performance in experimental group. Conclusion: Neurofeedback has a potential to retraining the brain waves activities to improve performance and attention of athletes in various sports disciplines. It is suggested to sport psychologists that use these methods for improve attention and performance.
Mohammad Ali Mohammadyfar
Volume 3, Issue 11 , March 2018, , Pages 71-90
Abstract
Introduction: The aim of this study was to evaluate the effectiveness of neurofeedback education in improving the performance of attention and cognitive flexibility in athletic students. Method: To this end, 40 male students of physical education at Kharazmi University were randomly assigned to two groups ...
Read More
Introduction: The aim of this study was to evaluate the effectiveness of neurofeedback education in improving the performance of attention and cognitive flexibility in athletic students. Method: To this end, 40 male students of physical education at Kharazmi University were randomly assigned to two groups of 20. The first group received 16 sessions of neurofeedback training (2 sessions per week) as the experimental group, and the second group (control) received no intervention. The research tools consisted of the Stroop Attention Computer Test and the Wisconsin Cognitive Flexibility Computer Test. The data were analyzed using one-variable and multivariate analysis of covariance and analyzed using SPSS19 software. Findings: The results showed that the experimental group had statistically superiority (p
abdolvahed narmashiri; Hamidreza Ashrafi; Zeynab Rostami; Ali Bagherifar; giti hemati rad
Volume 3, Issue 11 , March 2018, , Pages 143-158
Abstract
Introduction: The aim of this study was to determine the effect of cerebellar direct electrical stimulation on the speed of processing in the attention of people with hyperactivity and attention deficit disorder in Tehran. Method:. This quasi-experimental research was carried out in a pre-test and post-test ...
Read More
Introduction: The aim of this study was to determine the effect of cerebellar direct electrical stimulation on the speed of processing in the attention of people with hyperactivity and attention deficit disorder in Tehran. Method:. This quasi-experimental research was carried out in a pre-test and post-test with control group. The statistical population of the study consisted of all individuals with hyperactivity and attention deficit disorder between the ages of 15 and 18 years in Tehran in 1396, of which 30 were selected as sample size. From the statistical population, 30 subjects in the experimental group and 30 controls were selected by random sampling and randomly selected. For the experimental group, direct brain electric stimulation was performed. Data collection tools consisted of the Vendriota questionnaire and the computer-aided computer visual and audio performance (IVA). To analyze the data, one-variable covariance test was used. Results: The results of the post-intervention research showed that there is a significant difference between the experimental and control groups in the variable of attention processing speed (visual and auditory). Conclusion: Therefore, it can be said that direct brain electric stimulation is effective in improving the speed of attention processing in people with hyperactivity and attention deficit.
Mansour Bayrami; Yazdan Movahedi; Esmail Ahmadi
Volume 3, Issue 8 , June 2017, , Pages 9-28
Abstract
Introduction: Problems reading and math ability is one of the most fundamental problems faced by children with learning disabilities. This study aimed to investigate the effects of neuropsychological rehabilitation of attention and memory performance of students with learning disabilities in dyslexia ...
Read More
Introduction: Problems reading and math ability is one of the most fundamental problems faced by children with learning disabilities. This study aimed to investigate the effects of neuropsychological rehabilitation of attention and memory performance of students with learning disabilities in dyslexia & Dyscalculia was performed. Methods: This study is a quasi-experimental design with three test groups, respectively. The study sample was the city of Tabriz in 2016, and samples were selected from the divisions of learning disorders. Sampling was random. This means that people with a learning disability but did not intervene for them. The number of treatment sessions 20 sessions and each session lasted 45 minutes. Instruments included neuropsychological rehabilitation program Sound Smart computerized test of attention and memory selected - the attention is scattered. Data analysis was performed using multivariate analysis of covariance. Findings: Data analysis showed that mean scores of pre-test and post-test experimental and control groups there was a significant difference (P Conclusion: This study showed that neuropsychological rehabilitation can be used as an effective way to improve attention and memory in people with learning disability in dyslexia & Dyscalculia are used.
Saeid Aboghabish; Nahid Shetabboushehri; Afkham Daneshfar; Rasool Abedanzadeh
Volume 2, Issue 7 , February 2017, , Pages 93-106
Abstract
Introduction: Thus, this study was aimed to investigate the first stimulus simplification and significant interference on the second reaction time. Dual stimulus task is an appropriate way to investigate humans’ limited capacity of information processing. Methods: The participants included 17 male ...
Read More
Introduction: Thus, this study was aimed to investigate the first stimulus simplification and significant interference on the second reaction time. Dual stimulus task is an appropriate way to investigate humans’ limited capacity of information processing. Methods: The participants included 17 male students of Shahid Chamran University whose age average was 23.45±1.54. All of them performed a dual task test within four intervals of 50, 100, 300, 900 ms between asynchronous onset of two stimuli under congruent and incongruent and neutral conditions. Findings: The results of ANOVA with repeated measure at the significance level of P˃0.05 indicated that simplification of the first congruent stimulus, compared to incongruent and neutral stimuli; reduces the reaction time for second congruent and neutral stimuli. The required change of attention processes in dual task with second incongruent stimulus causes on significant effect of first congruent and neutral stimulus precedence over second incongruent stimulus. Conclusion: The findings suggest that simultaneous performance of dual tasks with high information processing capacity or divided attention among non-automatized tasks should be avoided. Moreover, for intial of simplification processes and significant interference at leat 100 ms be required.
Elyas Akbari; Jafar Hasani; Alireza Moradi
Volume 1, Issue 1 , September 2015, , Pages 7-25
Abstract
Introduction: The present study aimed at investigating the effect of emotional experience induction on the executive functi of attention and working memory with regard to depressive continumm. Method: In the first stage 449 students of Kharazmi university of Tehran were randomly screened by means of ...
Read More
Introduction: The present study aimed at investigating the effect of emotional experience induction on the executive functi of attention and working memory with regard to depressive continumm. Method: In the first stage 449 students of Kharazmi university of Tehran were randomly screened by means of second version of the beck depression inventory (BDI-II (and then 34 of them who had obtained equal or up to +1/5 and equal or lower than -1/5 standard z score were selected as the sample group and were invited to next stage of the research. Then, they were examined individually in three steps. The first stage was related to the basic activity of the executive functions of the attention and working memory before watching emotional movies and the next two stages of the experiment were conducted after watching the selected emotional movies including positive and negative emotional movies. Findings: The finding indicated that emotional experience induction can affect attention without the main effect of group. Besided, results related to the working memory showed that the performance of the two groups in different emotional situations has significant difference. Conclusion: Regarding the results of the present study, attention maybe affected under more severe concitions of depression and working memory performance, as an executive function, maybe impaired under the influence of depression. This makes it difficult to select and process information quickly for performing the task.
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 ...
Read More
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
