Mohammad ali Nazari; hasan Sabouri moghaddam; Jalil Babapour; Maryam Hosseini Houripasand
Abstract
Aim: Emotional effects on human time perception are generally attributed to arousal and valence of stimuli. Recent evidence suggests that perception of emotional facial expression induces temporal distortions. Based on the internal clock model, it is assumed that emotional arousal speeds up or slows ...
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Aim: Emotional effects on human time perception are generally attributed to arousal and valence of stimuli. Recent evidence suggests that perception of emotional facial expression induces temporal distortions. Based on the internal clock model, it is assumed that emotional arousal speeds up or slows down the pace maker, while valence influences the attentional processes of the switch element. The aim of our study was to investigate the contribution of each dimension and disentangle their role in facial emotion time distortion. Method: 20 female students performed a temporal bisection task using emotional facial expressions as stimuli which were selected based on PAD model. Findings: Behavioral results revealed that high arousal pleasant stimuli (happy faces) resulted in significantly smaller bisection point, while there was no significant difference between bisection points of angry and neutral faces. The results of study were interpreted in light of SET theory and dual-stages processing of attention. Conclusion:Different Aspects of Facial Emotional affect on the Perception of Time
Massud Wahdattalab; Farhad Ahmadnejad; Mohammad Ali Nazari; Hamid Nadimi
Abstract
Aim :Independent variables in this research were four Architectural images in two dual group members of simple, complex and Islamic, non-Islamic, to examine the effect of two factors of complexity level and the subjective familiarity of the participants on two dependent variables of perceived time duration ...
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Aim :Independent variables in this research were four Architectural images in two dual group members of simple, complex and Islamic, non-Islamic, to examine the effect of two factors of complexity level and the subjective familiarity of the participants on two dependent variables of perceived time duration and heart rate. Also, the between factor effect of the two dependent variables, of produced time and the heart rate examined. Method:The research design was causal-comparative, and the study population was all students of different faculties of the Tabriz Islamic Art University during the first and second semesters of the academic year2016-2017. The sample size consisted of two groups of 100 students from the population and participated in two separate experiments.Findings:The findings show that the complexity of the images affects both the production time of individuals and their heart rate. Familiarity factor of the Islamic and non-Islamic images had only a significant effect on the heart rate. Conclusion:Findings in many respects are consistent with the results of previous studies and show the need for the introduction of "ecological" and closer to the real environment subjects into the field time perception.
Elham Ghorbanian; marziye alivandi vafa; mahdi farhoudi; mohammad ali nazari
Abstract
Aim: Nowadays stroke is one of the most common disabling neurological diseases in the world. Cognitive complications are common problems in people with stroke. So the aim of this study was to evaluate the effect of computer-based cognitive rehabilitation on working memory function in the patients with ...
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Aim: Nowadays stroke is one of the most common disabling neurological diseases in the world. Cognitive complications are common problems in people with stroke. So the aim of this study was to evaluate the effect of computer-based cognitive rehabilitation on working memory function in the patients with stroke. Method: The present study is a quasi- experimental investigation using a pretest- posttest design and a control group. 30 stroke patients aged 30-65 who had the inclusion criteria, were randomly assigned to experimental and control groups. Experimental group trained for 21 sessions with Captain’s Log Cognitive Rehabilitation Software and control group did not receive any intervention. Wechsler working Memory Test (Number Memory Scale) and Cambridge Spatial Working Memory Test was applied at pretest and posttest. Findings: The results of ANCOVA analysis indicated that a significant difference between the means of working memory in experimental and control groups. Conclusion: Our findings indicated that computer-based cognitive rehabilitation improved working memory in people with stroke and it can be used as an effective and helpful method to improve memory performance of these patients.
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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
Elnaz Mousanezhad Jeddi; Majid Mahmood Alilou; Mohammad Ali Nazari
Volume 2, Issue 6 , December 2016, , Pages 61-76
Abstract
Introduction: Cognitive factors are the important correlates of dyslexia. Different researches show that these factors are impaired in children with dyslexia. Also, the studies believe in the dysfunction of fronto-temporo-occipital connection as a neural evidence of dyslexia. Neurofeedback by changing ...
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Introduction: Cognitive factors are the important correlates of dyslexia. Different researches show that these factors are impaired in children with dyslexia. Also, the studies believe in the dysfunction of fronto-temporo-occipital connection as a neural evidence of dyslexia. Neurofeedback by changing the functional connectivity or coherence of these regions could be useful in improving cognitive functions in dyslexic children. The present study aimed to determine the effectiveness of coherence neurofeedback training on phonological awareness and working memory in children with dyslexia. Method: In this single subject study, four dyslexic children completed twenty 30 minutes sessions of coherence neurofeedback training. Findings: The results showed improvement in the phonological awareness and working memory scores. Also, coherence values changed toward normal values after treatment. Conclusion: These changes indicate that dyslexia could be considered as a dysfunction in functional connectivity between specific brain regions and coherence guided neurofeedback seems to be capable of modifying these disturbances.
