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Volume 2, Issue 4 , June 2017, , Pages 91-106
Abstract
Introduction: Nowadays, the research results suggest that brainwaves change in different Psychological conditions. In this regard, this study aims to investigate the cognitive challenges on quantitative electroencephalography (QEEG) pattern. Method: EEG was recorded from Cz in 26 right-handed individuals ...
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Introduction: Nowadays, the research results suggest that brainwaves change in different Psychological conditions. In this regard, this study aims to investigate the cognitive challenges on quantitative electroencephalography (QEEG) pattern. Method: EEG was recorded from Cz in 26 right-handed individuals including 13 male and 13 female students. During two conditions: At rest condition Subjects looked at the white screen computer for one minute from a distance of 90 cm. Then, ‘React Traking soccer’ was run for one minute (cognitive challenges condition). Findings: The data analysis showed that the main effect of mental condition (from rest to cognitive challenge) was not significant (F=2/73, P
Mohammad Khabiri; Ramin Mansouri; Ali Moghadam Zadeh; Ayoub Asadi; Elahe Hafezi; Amir Hossien Mehrsafar
Volume 3, Issue 11 , March 2018, , Pages 91-102
Abstract
Introduction: The aim of this study was to investigate the effect of positive self- talk on competitive anxiety responses, salivary cortisol levels and self-confidence in elite Wushu athletes.methods: For this purpose, 26 elite athlete’s man who participated in this study and were divided ...
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Introduction: The aim of this study was to investigate the effect of positive self- talk on competitive anxiety responses, salivary cortisol levels and self-confidence in elite Wushu athletes.methods: For this purpose, 26 elite athlete’s man who participated in this study and were divided into two experimental and control groups. Competitive anxiety and self-confidence also salivary cortisol levels were measured in both groups in pre-test (first competition). The experimental group performed practice and post-test protocol was performed (second competition). Data were analyzed by paired t test and ANCOVA test.Findings : The results showed that after intervention competitive anxiety and salivary cortisol has decreased. Self-confidence scores after the intervention also increased.Conclusion: In general, it can be concluded that positive self-talk intervention can be a strategy to reduce psychophysiological responses of competitive anxiety and improve self-confidence.
Maryam Rahimianmashhadi; parvaneh shamsipoordehkordi
Abstract
Introduction: The purpose of this research, determination impact cognitive rehabilitation training and progressive physical training on improvement cognitive flexibility and social developmental mentally retarded children. Method: In this study of semi experimental, 45 educable mentally retarded children ...
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Introduction: The purpose of this research, determination impact cognitive rehabilitation training and progressive physical training on improvement cognitive flexibility and social developmental mentally retarded children. Method: In this study of semi experimental, 45 educable mentally retarded children with age range 8 to 12 year, according inclusion criteria select in two groups experimental and one of group control were placed. Findings: Data analysis shows among average social developmental and total error, groups of progressive physical training and cognitive rehabilitation with group control in post test level difference statistics is not significant. Averages shows progressive physical training group have social developmental score better than to others groups in post test. The mean of cognitive flexibility in cognitive rehabilitation and progressive physical education groups was better than control group. Conclusion: Cognitive and behavioral skills of mentally retarded children can be found through cognitive rehabilitation exercises Training and development
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 ...
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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.
mohammad oraki; Maryam Zamani
Abstract
Aim:Regarding the problems of people with ADHD and attention deficit hyperactivity disorder and its importance in the quality of social relationships, the present study was conducted to investigate the effect of neurofeedback therapy on improvement of eye emotion recognition. Method: For this purpose, ...
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Aim:Regarding the problems of people with ADHD and attention deficit hyperactivity disorder and its importance in the quality of social relationships, the present study was conducted to investigate the effect of neurofeedback therapy on improvement of eye emotion recognition. Method: For this purpose, 24 adults including 12 males and 12 females between the ages of 19 to 25 years were selected and divided into experimental and control groups. The subjects were evaluated by an adult ADHD test and interview, and provided that no other symptoms of mental disorders were measured by the SCL-90 test. All subjects were recorded electroencephalographically and all responded to eye emotion recognition test. The experimental group also participated in 15 sessions of neurofeedback treatment and then both groups were re-evaluated. Results: The results showed that the experimental group performed better than the control group after the neurofeedback sessions and the difference between them was significant. Conclusion: According to the findings of this study, it can be concluded that individuals' performance in emotion recognition is not limited to classical mirror neurons and emotional processing takes place in areas beyond what is known as mirror neurons.
Ali Shahabifar; Seyyed Mehdi Hosseinifard; Ata-o-llah Movahedinia
Abstract
Aim: The aim of this study was to investigate the interactive effect of working memory and task duration on time perception. Methods: The research method was quasi-experimental. The population of this research was school students, university students and personnel of organizations of Kerman city in 2018 ...
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Aim: The aim of this study was to investigate the interactive effect of working memory and task duration on time perception. Methods: The research method was quasi-experimental. The population of this research was school students, university students and personnel of organizations of Kerman city in 2018 and among them, 300 persons were selected by available sampling method. The time reproduction task of Shahabifar and Movahedinia (2016) was used for obtaining data. Data were analyzed by paired samples t-test and two factor analysis of variance with repeated measures. Findings: The results showed that the main effect of working memory and task duration and interactive effect of these variables on time perception was significant (p<0.01). Working memory and increase of the task duration affect time perception respectively in the form of decreasing and increasing the amount of time reproduction error. Conclusion: Time perception decays significantly with increasing length of time intervals and working memory load.
seyedreza mirmehdi; elham kazemi mahyari
Volume 4, Issue 12 , June 2018, , Pages 101-124
Abstract
Introduction:One of the serious injuries caused by substance abuse is Brain damage and cognitive defects, which has a fundamental theoretical and clinical significance. The aim of this study was to compare of Brain Behavioral Activation and Inhibition activity mechanism (BAS/BIS), cognitive flexibility ...
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Introduction:One of the serious injuries caused by substance abuse is Brain damage and cognitive defects, which has a fundamental theoretical and clinical significance. The aim of this study was to compare of Brain Behavioral Activation and Inhibition activity mechanism (BAS/BIS), cognitive flexibility function in substance abuse disorder & normal women. Method: The present study was comparative-causal schemes. The statistical population of this study included all normal and substance dependent women in addiction treatment camps in Isfahan. The sample consisted of 30 dependent women (purposeful sampling method) and 30 healthy women (cluster sampling method). The tools were simple Stroop test software, Wisconsin test software and researcher-made demographic questionnaire. Findings: The results showed that there is a significant difference in Behavioral Activation System (BAS) and cognitive flexibility function. As in Wisconsin's psychological nursing test The drug-dependent group had a weaker performance than the normal group.But there was no significant difference between the two groups at the Behavioral Inhibition System(BIS). Conclusion: used to drug Shows more and longer deficits In the prefrontal cortex of the brain and the psychological nerve functions (executive). Investigating the neuro-behavioral foundations in the drug-dependent community can help the clinicians to use appropriate therapies and Preventive interventions in addiction.
Amir Azizi; Fazlullah Mir Drikvand; Mohammad Ali Sepahvani
Volume 3, Issue 8 , June 2017, , Pages 103-118
Abstract
Introduction: The weakness of visual perception skills, is one of the causes of specific learning disability. Cognitive rehabilitation, and cognitive - behavioral play therapy, neurofeedback intervention training common in people with learning disability is special. The aim of this study was to compare ...
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Introduction: The weakness of visual perception skills, is one of the causes of specific learning disability. Cognitive rehabilitation, and cognitive - behavioral play therapy, neurofeedback intervention training common in people with learning disability is special. The aim of this study was to compare the effect of cognitive rehabilitation, cognitive - behavioral play therapy, neurofeedback and on visual - motor perception in primary school students with specific learning disability. Method: This study was quasi-experimental with pretest-posttest control group. The study population consisted of all elementary school students, who with diagnosis of learning disabilities in learning centers in Tabriz 2016-2017 had received the interventions were necessary. A sample of the target population purposive sampling, 60 students were selected and using randomly into three experimental groups and one control group (n = 15 per group) were replaced. In all four groups of visual perception - motor Bender-Gestalt as pre-completion and after 20 sessions of cognitive rehabilitation, 20 neurofeedback sessions and 8 sessions of cognitive - behavioral play therapy re-test was performed for each of the four groups. Data using descriptive statistics such as mean and standard deviation and inferential statistics such as Multivariate regression analysis and analysis of variance Mixed were analyzed software SPSS.20. Findings: The results of the multivariate regression analysis showed that cognitive rehabilitation training, neurofeedback and cognitive - behavioral play therapy on visual perception - motor elementary students with specific learning disorder, affects (PConclusion: It seems that the use of cognitive rehabilitation training, neurofeedback and cognitive - behavioral play therapy shared equally in improved visual perception - motor, elementary students with learning disabilities in particular, can be used.
Karim Sevari; Fatemeh Farzadi
Abstract
Aim:Cognitive error of memory is an important issue that has been considered in recent years, and there are good reviews in this regard. The purpose of this study was to predict the cognitive error of memory based on academic self-efficacy, negative affect, and depression. Method: The present study was ...
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Aim:Cognitive error of memory is an important issue that has been considered in recent years, and there are good reviews in this regard. The purpose of this study was to predict the cognitive error of memory based on academic self-efficacy, negative affect, and depression. Method: The present study was a descriptive correlational study.The statistical population of the present study was students of Payame Noor University of Ahwaz, 200 of them were selected by multi-stage random sampling. In this study, academic self-efficacy questionnaire (1396), positive and negative affection (1988), psychological stress (1995) and memory cognitive error (1396) were used. Data were analyzed using Pearson correlation and multivariate regression. Results: The results showed that there is a negative relationship between academic self-efficacy and cognitive error of memory, and there is a positive relationship between negative affection and depression and cognitive error of memory. Conclusion: The present study suggests that cognitive error of memory can be predicted based on academic self-efficacy, negative affective and depression variables.
Mohammadreza Doustan; Mohammad Rahiminia; Seyede Nahid Shetab Boushehri
Abstract
Introduction: One of the topics that is important in many sports skills is the Psychological refractory period that is a delay in responding to stimuli that are presented in short intervals. The aim of recent research is the effect of number of simulation-response and Stimulus Onset Asynchrony on Psychological ...
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Introduction: One of the topics that is important in many sports skills is the Psychological refractory period that is a delay in responding to stimuli that are presented in short intervals. The aim of recent research is the effect of number of simulation-response and Stimulus Onset Asynchrony on Psychological refractory period in athlete and non- athlete person. Methods: This research is a semi-experiment and field of fundamental-applied research. 15 athletes and 15 non-athlete students of university (22.25±1.08 years) were selected by convenience targeted sampling. The instrument was Serial Reaction Time Measuring Apparatus, msi notebook and Annett Hand Preference Questionnaire. From all participants, task test the taken using a psychological refractory period included the number of different response stimuli (one, two, four and eight) for the first and second stimuli and four time intervals (100,200,400 and 600 milliseconds) between the two stimuli. data using analysis of oneway variance tests of 4×4×2 with repeated measures with Bonferroni test were used. Results: The results showed that at more time intervals and in the number of stimuli-less responses, there was a shorter psychological refractory period. Also, there is a significant difference between the athletes and non-athletes in the number of stimulus-response eight-choice. Coclusion: It seems that in more number of stimulus-responses, according to Welfard's single-channel theory, because the later channel is empty, a longer Psychological refractory period occurs. Athletes, due to the experience of more challenges in exercise and the Preparation neuropsychology muscular system, in more difficult tasks, they perform better than non-athletes.
Farzaneh Hatami; Farshid Tahmasbi; Ali Yousef pour
Abstract
Aim:The purpose of this study was to determine the effects of video and live observation on activation of mirror neurons in football keep- up skill. Metod:Twenty-four students (mean age: 17.66 0.816 years) who have taken part in Olympiads competition, voluntarily participated ad yoked into live ...
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Aim:The purpose of this study was to determine the effects of video and live observation on activation of mirror neurons in football keep- up skill. Metod:Twenty-four students (mean age: 17.66 0.816 years) who have taken part in Olympiads competition, voluntarily participated ad yoked into live and video observation. Participants’ brain waves were recorded by EEG in open eye resting and observing live and video observation conditions. Mu rhythm Suppression, as the mirror neuron activation, was calculated as a ratio of the alpha absolute power during observation of video and live models relative to the alpha absolute power in the baseline condition (rest) Findings:Results showed that there were no significant differences in mu rhythm suppression between live and video observation groups in C3, Cz and C4 brain areas. In addition, absolute alpha power was suppressed significantly in observation conditions compared to rest. Conclusion: Regarding the activation of mirror neurons in both live and video observation, our result suggested that in the case of limitation in the use of the live model, video model can be used in soccer keep- up skill.
Zeinab Samnia; Sholeh Livarjani; Leila Hassan Pashaei
Abstract
Introduction: The aim of this study was to evaluate the effectiveness of Captain Log software training on processing speed, working memory and cognitive flexibility in children with attention deficit / hyper-activity disorder. Methods: From children aged 7 to 9 years with attention deficit / hyperactivity ...
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Introduction: The aim of this study was to evaluate the effectiveness of Captain Log software training on processing speed, working memory and cognitive flexibility in children with attention deficit / hyper-activity disorder. Methods: From children aged 7 to 9 years with attention deficit / hyperactivity disorder referred to health centers of East Azerbaijan province, 30 people were selected using purposive sampling method and in this quasi-experimental study of pre-test-post-test type They participated with two control and experimental groups. Data collection was performed using three subscales tests (cryptographic test, symbolization test and digit memory expanse test) Wechsler intelligence test for children and visual memory subscale of Wexler memory test and Wisconsin card classification test. Mean data and standard deviation were used to analyze the data in the inferential statistics section and repeated measures analysis of variance was used in the analytical statistics section.The mean difference in the three variables showed that processing speed and working memory And cognitive flexibility (P<0/0001) is significant in children trained with software and untrained children. Conclusion: The results showed that the training of Captain Log cognitive software caused active memory in children with attention deficit / hyperactivity disorder.
Neuropsychology
AIDA FARSHAM; sogand ghasemzadeh; ahmad alipour; Gholam ALI Afrooz
Abstract
Aim: This research was conducted with the aim of determining the effectiveness of cognitive rehabilitation and play therapy on improving the executive functions of children with brain tumors. Method: The study was a practical research and a time series quasi-experimental design with multiple groups. ...
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Aim: This research was conducted with the aim of determining the effectiveness of cognitive rehabilitation and play therapy on improving the executive functions of children with brain tumors. Method: The study was a practical research and a time series quasi-experimental design with multiple groups. The sample included 45 children between 7 and 10 years old with brain tumors selected from Mahak Hospital purposefully and by considering the inclusion and exclusion criteria. The subjects were randomly replaced in 3 groups of 15 people (group 1: cognitive rehabilitation; group 2: cognitive rehabilitation with play therapy; group 3: control group). The experimental groups received relevant interventions in 8 sessions, and the control group did not receive any intervention. The pre-test, post-test and 1-month follow-up of the participants of all 3 groups were conducted with the Executive Function questioner (BRIEF). In order to analyze the data, split-plot ANOVA design (SPANOVA) with spss21 software was used.Findings: According to the results, the deficit of executive functions in children of both experimental groups was reduced compared to the control group and was stable in the follow-up. Conclusion: The result showed these interventions can be used for children with brain tumors. Of course, the use of rehabilitation therapy integrated with play therapy is more suitable for improving the cognitive skills of children with brain tumors.
Neuropsychology
Mohammad Nazaripour; babak zakizadeh
Abstract
In neuroscience, decision-making is considered a sensory process that begins in the Brian cortex. When making decisions, sensory information must be interpreted and translated into behavior. In this regard, this study has attempted to investigate the effects of a new branch of neuroscience (Neuroaccounting) ...
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In neuroscience, decision-making is considered a sensory process that begins in the Brian cortex. When making decisions, sensory information must be interpreted and translated into behavior. In this regard, this study has attempted to investigate the effects of a new branch of neuroscience (Neuroaccounting) on financial and budget decisions. The present study is practical in nature and is considered as a descriptive-exploratory correlation study. The required data were collected through the distribution of questionnaires among 245 individual investors. Data analysis has been done using structural equation modeling. This study includes two independent variables, stimuli-relay (SR) and intuition. The dependent variables of this study are: (1) dynamic cognitive processing (DCP) with four subconstructs: multi-dimensional perceptual space (MDPS), behavioral outcome space (BOS), resolution and optimization. (2) Expertise includes two subconstructs: memory and resolution-Ex. According to the research findings, the variables of SR and intuition have positive and significant effects on the variables of DCP and expertise. Also, the research findings show that two independent variables have a positive and significant effect on the six sub-constructs of the study. Finally, when making financial and budget decisions, managers should consider internal and external information as well as the consequences of choosing a specific decision.
Mahbibe Eskandari; Fatemeh Raeisyan zadeh; maliheh mehdikhani
Abstract
Introduction:The present study aims to compare the effectiveness of mindfulness-based stress reduction and relaxation in patients with Multiple Sclerosis )MS(. Method: This is a quasi- experimental study with pre-test and post-test design with control group. The statistical population included all patients ...
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Introduction:The present study aims to compare the effectiveness of mindfulness-based stress reduction and relaxation in patients with Multiple Sclerosis )MS(. Method: This is a quasi- experimental study with pre-test and post-test design with control group. The statistical population included all patients with MS who referred to MS association of Mazandaran and had a medical record between 2019 and 2020 years. 45 subjects have been selected by purposive sampling method, randomly were assigned to three groups (a control and two experimental groups). Then, the subjects of the first and second experimental groups received mindfulness-based stress reduction and relaxation in 8 sessions, respectively. The Executive Functions Scale (Nejati, 2013) was used as a research tool in two stages: before and after education for all three groups (two experimental groups and a control group). Findings: In the end, the findings of the analysis of Covariance and LSD test showed that both of the implemented therapeutic approaches mindfulness-based stress reduction and relaxation have led to an improvement in the executive functions of patients with MS (p<0.05). also, have shown that mindfulness-based stress reduction has been more impactful on executive functions than relaxation. Conclusion: According to the findings of the present study, in the field of treatment and counseling of patients with MS, mindfulness-based stress reduction and relaxation seems to be very effective and promising.
Maryam Salehi; Hojatollah Amini; Hasan Mohammadzade
Volume 1, Issue 1 , September 2015, , Pages 86-103
Abstract
Introduction: The purpose of this study was to compare the effect of neurofeedback and mental imagery practice on the performance and learning in darts skill. Methods: To achieve this aim, the right-handed, female students of physical education at Urmia University, who had no history of neurofeedback ...
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Introduction: The purpose of this study was to compare the effect of neurofeedback and mental imagery practice on the performance and learning in darts skill. Methods: To achieve this aim, the right-handed, female students of physical education at Urmia University, who had no history of neurofeedback training, mental imagery and darts throwing, 24 individuals were randomly selected and were randomly divided into three groups of 8 people for mental imagery, neurofeedback and control groups. Exercise protocol was done 3 times a week for 5 weeks was and then post-test was performed. Retention test was performed 5 days after the last training session. Findings: Two-way ANOVA with repeated measures revealed that although the participants, performance progressed in the acquisition of both mental imagery and neurofeedback, no significant difference was found between the experimental groups at this stage. On the other hand, the main effect of the test processes was significant in this study but the main effect and interaction of the test group and control group was not significant statistically. Conclusion: Regarding the findings of this study, the role of mental imagery and neurofeedback receives more attention and their use is recommended along with physical exercises for darts throwing.
negin tosifian; mohammad ghaderibagejan; armin mahmoodi; mohammad khaledian
Volume 3, Issue 10 , January 2018, , Pages 93-108
Abstract
Aim: Multiple Sclerosis (MS) is one of the most prevalent chronc diseases of the central nervous system among young adults, and like every other disease influences different aspects of a person's life. Methods: this research is correlation study type which use path analysis method to examine structural ...
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Aim: Multiple Sclerosis (MS) is one of the most prevalent chronc diseases of the central nervous system among young adults, and like every other disease influences different aspects of a person's life. Methods: this research is correlation study type which use path analysis method to examine structural connections between the variables. The statistical population of this research is all members of MS patients' community of Ahvaz city in 2017 among which 260 individuals have been selected based on acceptance criteria and the sample size calculated from Cochran formula. These patients answered young schema questionnaire-short form, executive functions questionnaire and UCLA loneliness scale questionnaire. Finally, data were analyzed using SPSS and AMOS softwares. Findings: the results showed the adequate precision of the model in which early maladaptive schemas directly predicted the executive functions ( ). Early maladaptive schemas together with the sense of loneliness factor also indirectly and more precisely predicted the executive functions ( ).Conclusion: according to the results of this research early maladaptive schemas and the sense of loneliness factor are vital elements on weakening the executive functions of patients with MS. Thus, considering early maladaptive schemas and the sense of loneliness factor is essential in rehabilitation programs.
mohammadreza zoghipaydar; zahra hasany khosh; Mosayyeb Yar Mohammadi Wasel; Hossein Mohagheghi
Abstract
Introduction: Emotional problems, psychological distress and cravings are some of the side effects of substance abuse. The aim of this study was compare the effect of transcranial direct current stimulation and Methadone Maintenance treatment on craving reduction, emotion regulation and distress tolerance ...
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Introduction: Emotional problems, psychological distress and cravings are some of the side effects of substance abuse. The aim of this study was compare the effect of transcranial direct current stimulation and Methadone Maintenance treatment on craving reduction, emotion regulation and distress tolerance in people with opioid use disorder. Method: The present study was a quasi-experimental. The statistical population of this study was all people admitted to addiction treatment clinics in Hamedan in 2019, which 40 patients were selected by available and voluntary sampling in two experimental groups of methadone therapy (n = 13), electrical brain stimulation (n = 13) and a control group (n = 14). Subjects completed the Emotion Regulation Difficulty Scale, Distress Tolerance Scale, and measure the temptation of substances after leaving. Data were analyzed by analysis of covariance. Results: The results showed that electrical stimulation had a significant effect on craving, emotion regulation and distress tolerance (p <0.05). Methadone therapy was effective in craving reduction and emotion regulation, but had no effect on distress tolerance. In comparison between the two experimental groups, no significant difference was observed in craving reduction (p> 0.05), but the effect of electrical stimulation on emotion regulation was greater. Conclusion: Due to the greater effect of transcranial direct current stimulation on emotion regulation and distress tolerance, it can be used as an effective and complementary treatment, along with the usual treatments for substance use disorder and the emotional distress it caused.
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 ...
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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.
yousef dehghani; nozhatozaman moradi
Abstract
Aim: Decision-making is part of the cognitive control that plays a key role in the evaluation of desires. The present study was performed to investigate the effects of tDCS on the left hemisphere DLPFC brain region in high-risk decision making and risk-taking. Method: The study was a single-blind experimental ...
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Aim: Decision-making is part of the cognitive control that plays a key role in the evaluation of desires. The present study was performed to investigate the effects of tDCS on the left hemisphere DLPFC brain region in high-risk decision making and risk-taking. Method: The study was a single-blind experimental study performed on 30 healthy adults. In this study, subjects were randomly divided into two experimental and sham groups. In the experimental group, anodal stimulation over the right hemisphere OFC and cathodal stimulation over the left DLPFC was performed at 2 mA. The tasks used were computer versions of Balloon Analogue Risk Task(BART) and Iowa Gambling Task(IGT) for evaluating high-risk decision making and risk-taking. Data were analyzed using a one-way ANCOVA test. Results: Results showed a significant difference between the experimental and control groups in the Bart test(P <0.05) and the impact of the intervention in reducing risky decision making, and also no significant difference between the two groups in the Iowa test(P <0.05). Conclusion: Based on the results, it can be said that tDCS anodic stimulation can be effective in reducing risky decision making.
masoumeh faghfouriazar; Mehdi Shahbazi; Shahzad Tahmassebi Boroujeni
Volume 3, Issue 9 , September 2017, , Pages 103-116
Abstract
Introduction: One of the most important goals of any athlete optimum performance during the competitions, but sometimes athlete’s performance suddenly destroyed under psychological pressure caused by competition. This study investigated the effect of neurofeedback and under pressure training on ...
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Introduction: One of the most important goals of any athlete optimum performance during the competitions, but sometimes athlete’s performance suddenly destroyed under psychological pressure caused by competition. This study investigated the effect of neurofeedback and under pressure training on expert archers’ performance in competitive condition. Methods: participants were 30 adult healthy right hand expert female archer in Tehran that were selected by accessible method and after primary archery record in competitive condition and sameness were assigned randomly into three groups: neurofeedback and under pressure training and control. Training protocol was done 12 sessions at 4 weeks and after training was performed renewed record in competitive condition. Findings: The results of analysis of variance showed that the performance of participants at posttest both neurofeedback and under pressure group than control group progressed significantly (p= 0.003), the other at this stage despite was higher average’s record of under pressure training group, not seen significant difference between the neurofeedback and under pressure group. Conclusion: According to the findings of this study, effects of neurofeedback training, particularly under pressure considered to promotion of expert archers performance and emphasized to use of these methods beside physical training to achieve better results in competitions.
MOHAMMAD ORAKI; REZA FARAJI; hosein zare; vahid nejat
Volume 3, Issue 11 , March 2018, , Pages 103-114
Abstract
Introduction:The purpose of the present research was to study the effectiveness of Transcranial Direct Current Stimulation (TSCS) on executive functions of war survivors who suffer from PTSD. methods: It was a semi-experimental research with pre-test, post-test, experimental research and sham/placebo. ...
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Introduction:The purpose of the present research was to study the effectiveness of Transcranial Direct Current Stimulation (TSCS) on executive functions of war survivors who suffer from PTSD. methods: It was a semi-experimental research with pre-test, post-test, experimental research and sham/placebo. The population of the research includes all injured people (wounded warriors) of Kermanshah and they were selected by purposeful sampling (available sampling) as 30 individuals (15 per group). In order to obtain data, Barkley psychological executive functions disorder scale (BDEFS) and Wooders et al. Traumatic Stress Disorder List (1994) was used and data were analyzed by Multivariate covariance analysis method. Findings:The results showed that there is significant difference between mean score of time self-management, self-motivation, emotional self-regulation and total score of executive functions after omitting the effect of pre-test in experimental and control group (P0.05). in other word, it can be said that Transcranial Direct Current Stimulation (TSCS) had no effect and made no significant difference in self-organization/problem-solving and self-control/inhibition. Conclusion: According to findings and promotion of executive functions in wounded warriors who suffer from PTSD, it is needed to use some treatments such as Transcranial Direct Current Stimulation (TSCS) regularly.
Mohammad Oraki; Nepton Tehrani
Volume 2, Issue 7 , February 2017, , Pages 107-118
Abstract
Introduction: The aim of this study was the effectiveness of biofeedback and Neuro-biofeedback training on reduction of headache migraine. Method: This study was quassi experimental one with pre-test and post- test. The sample included 10 patient who were randomly selected. First the subject had pre ...
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Introduction: The aim of this study was the effectiveness of biofeedback and Neuro-biofeedback training on reduction of headache migraine. Method: This study was quassi experimental one with pre-test and post- test. The sample included 10 patient who were randomly selected. First the subject had pre –test by QEEG and then, They were Randomly place in two groups. They participated in 20 session Neurofeedback and biofeedback training protocols. To evaluate Brain, were used. Data were analyzed by covariance analysis (ANCOVA). Findings: Results indicated that The result Showed that Neuro-biofeedback training group in the compariation to the single biofeedback training (pConclusion: According to the result it could be claimed that Neuro-biofeedback training can be considered as, new noun invading treatment of migraine pain.
Seyed Younes Mohammadi; Ali Pourmajidi
Volume 2, Issue 4 , June 2017, , Pages 107-116
Abstract
Introduction: This study aimed to compare the speed of learning and the transfer of information between the brain hemispheres among normal people and people with substance abuse. Methods: The study population consisted of boys with substance abuse who referred to the related centers in 1395 for giving ...
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Introduction: This study aimed to compare the speed of learning and the transfer of information between the brain hemispheres among normal people and people with substance abuse. Methods: The study population consisted of boys with substance abuse who referred to the related centers in 1395 for giving up taking drugs and normal boys. The sample was selected through cluster sampling. The participants were 115 normal and 115 boys diagnosed as addicted to drug abuse. The methodology of the study is causal-comparative. In order to collect data, the draw in the mirror was used as the instruments. The results were analyzed through running ANOVA using SPSS 20 software. Findings: The results showed that the speed of learning and the transfer of information between the brain hemispheres of ordinary people and people with substance abuse were statistically significant. Conclusion: As the results indicated, it can be concluded that people with substance abuse quickly learn and exchange information between the two hemispheres weaker than normal people do.
Ebrahim Rahbar Karbasdehi; Abbas Abolghasemi; Abbas Ali Hossein Khanzadeh; Fatemeh Rahbar Karbasdehi
Abstract
Introduction: Students with dyscalculia are faced with various physical and psychological stressful factors, which leads to decreased quality of life. Considering the relationship between neurocognitive and social skills with dyscalculia, the aim of this study was to compare neurocognitive and social ...
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Introduction: Students with dyscalculia are faced with various physical and psychological stressful factors, which leads to decreased quality of life. Considering the relationship between neurocognitive and social skills with dyscalculia, the aim of this study was to compare neurocognitive and social skills students with and without dyscalculia. Methods: The study was a causal-comparative design. The study sample was consisted of 100 students with and without dyscalculia in Rasht city, Iran, 2018, that selected by the convenience sampling method (each group 50 participants). To collect the data, tower of hanoi task, stroop test, dual n-back task, wisconsin card sorting test, and social skills rating system were used. Data was analyzed using analysis of variance by SPSS 24. Findings: The results showed that there is a significant difference between neurocognitive and social skills in two groups. So that in the tests of neurocognitive and social skills, the students with dyscalculia had a weaker performance than the students without this disorder (p < 0.001). Conclusion: According to the results of this research, more attention to the cognitive and social functions of students with dyscalculia can be important in the pathology and treatment of this disorder.
