فصلنامه روانشناسی شناختی

Mathematical reasoning is the ability of inductive and inferential reasoning with mathematical concepts that underlying cognitive variables play an important role in explaining it. The purpose of this study is to model the role of divided attention and working memory in mathematical reasoning with the mediation of mathematical knowledge and fluid intelligence in fourth grade elementary students. This study is non-experimental (descriptive) and a type of correlational study in which data were analyzed by Path Analysis. The statistical population of the research included all male fourth-graders of the primary schools in District 4 of Qom from which 213 students were randomly selected by two-stage cluster sampling. The study used different measures and instruments including the Integrated Visual and Auditory Continuous Performance Test-Second Edition (IVA-2 CPT) for measuring different types of attention, the Working Memory Index of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV), the Culture Fair Intelligence Test (CFIT), the knowing questions test and the mathematical reasoning questions test of TIMSS 2015. The findings of the study showed that all path coefficients are significant and appropriate model fit indices were obtained. The results indicate that working memory influenced by divided attention predicts mathematical reasoning with the mediation of mathematical knowledge and fluid intelligence. The research helps to develop in mathematics learning and cognitive rehabilitation of mathematical disorders by identifying the role of important cognitive variables in mathematical reasoning.

The aim of this study was to evaluate the effectiveness of mindfulness and the attention bias program on attention, inhibition and emotional regulation among children with generalised anxiety disorder. This was a quasi-experimental study with a pretest-posttest design. The population of this study consisted of 30 children with generalised anxiety disorder referred to psychiatric clinics in Tehran's 20th district selected by the available sampling method and randomly divided into experimental and control groups. The experimental group underwent an integrated program of attention correction and mindfulness for 8 sessions and the control group did not receive any intervention. In addition, parents of all participants completed the brief executive functions test at pre-test and post-test. Data were statistically analysed at two levels of descriptive (mean and standard deviation) and inferential (multivariate analysis of covariance). The results of this study showed that the program of correcting attention bias and mindfulness had an effect on the amount of attention, inhibition and emotion control among children with generalised anxiety disorder (p < 0.001). According to the findings of this study, it could be concluded that the combination of the treatment of attention bias and mindfulness improves executive functions in children with generalized anxiety and can be used in clinical interventions.

Combining psychoanalysis and neurology feels peculiar at first. The combination that tries to bind concepts of psychoanalysis with neuroscience in order to provide an integrates knowledge for better understanding of human mind. However, interaction between psychoanalysis and neuroscience has come to attention during past three decades. Purpose of this study is to investigate and find correlation between three styles of defense mechanism, Mature, immature and neurotic defense mechanism with executive functions within universities students of Tehran. For this matter a study performs on a sample of 140 students (including 76 women and 64 men) by available sampling. The instruments of this research were The Defense Styles Questionnaire (DSQ40) and four computer base test for executive functions including Continues Performance Test (CPT), Strops, 1-back, Go-No Go. The data was analyzed by Pearson correlation and multiple regression method. This study demonstrated significant relation between styles of defense mechanism and executive functions and also forms a model to estimate executive function shares in neurotic and growth defense mechanisms. As a result, the findings suggest that one’s performance on executive functions can affect their style of defense mechanism.

Mindfulness is one of the effective interventions in improving executive functions. Although this intervention is well documented for adults, but it is less addressed for children, while children with attention deficit / hyperactivity disorder Executive functions are problematic. The purpose of this study is to Designing, developing and validating a psycho-educational program of empowerment based on mindfulness-cognitive for reduce behavioral symptoms and improve executive function in children with attention deficit / hyperactivity disorder. The present study is of the fundamental type, which is in two parts, In the first for designing and development stages was a descriptive - analytic method with a configurative synthesis approach In the second stage For program validation, along with the use of face validity method, content validity method was used quantitatively and Qualitatively method with a panel of 10 experts and Content Validity Ratio (CVR) and Content Validity Index (CVI). The minimum and maximum CVRs for each item or component of the program were calculated as 0/73 and 1, respectively. Also the minimum and maximum CVIs for each item or component of the program were calculated as 0/80 and 1, respectively. Finally, the average content validity index (S-CVI/Ave) for the entire program was calculated as 0/91. This research leads to the preparation of an educational-therapeutic program in three sections: 1- basics, 2- external awareness and 3- internal awareness, which includes the sub-elements of strengthening attention, concentration, awareness of emotions, thoughts, tasks, purpose and impulses. Be. This educational-therapeutic program includes 16 sessions for children and 3 sessions for parents, 120 cards and 20 educational worksheets. The psycho educational program of empowerment based on mindfulness- cognitive for  reduce behavioral symptoms and improve executive function in children with attention deficit / hyperactivity disorder has appropriate face and content validity, and has a useful validity for educational, clinical and research uses.

the children with attention deficit/hyperactivity disorder (ADHD)  in executive functions such as kinds of attention, response inhibition and response rate cope with problems which need therapeutic and educational plans to improve. From this kind of methods, cognitive rehabilitation is a new approach, which its effectiveness has studied in various cases. The aim of this study is to find out the effect of Computer- assisted cognitive rehabilitation on improving of executive function of students with attention deficit/hyperactivity disorder. This study is a kind of quasi-experimental design with pre-test / post-test and control groups. 30 students come down with attention deficit/hyperactivity disorder (ADHD) selected by the available sampling method and base on criteria for entering of referrals to medical centers. 15 students were in experimental groups and others in control group. Experimental group have received training and computer-assisted Cognitive Rehabilitation for 15 Sessions. the integrated visual and auditory (IVA) continuous performance test, raven's progressive matrices test for children 5 to 9 years, SNAP-IV rating scale the Swanson questionnaire and Captain's­Log Cognitive Rehabilitation software. Data has analyzed by analyze of covariance method. the results of this study revealed that improving executive functions, response inhibition variables, sustain attention, self-centered attention and selective attention were caused by Cognitive Rehabilitation by computer game (P=0.05). But, significant Improvement was not observed in two variables, response rate and divided attention. (P=0.05). Ognitive Rehabilitation by Captain's­Log computer game affected on improving of executive functions of students with attention deficit/hyperactivity disorder so if the children with disorder being train under Cognitive computer software, executive functions of them will improve on response inhibition components, self-centered attention, selective attention and sustain attention.

The main purpose of this study was to determine the effect of computer cognitive empowerment on the attentional functions, concentration and cognitive effort of the elderly. Metods This study was a quasi-experimental study with a pretest-posttest design with a control group. Participants were 30 elderly people who were selected by convenience sampling method and randomly assigned to the experimental and control groups (Each group includes 15 people). Instruments included Captain's Log cognitive software and D2 test. Data analysis was performed using analysis of covariance. Data analysis using analysis of covariance showed that there was a significant difference between the mean scores of pre-test and post-test in the experimental and control groups (p <0.001). The results of this study show that computer cognitive empowerment can be used as an effective method to improve attention, concentration and cognitive effort in the elderly.

Pharmacological treatment of adult with attention deficit with hyperactive disorder (ADHD) has been shown to be successful; however, medication may not normalize executive functions. The present study was assessed the effect of working memory training program on executive functions of adult with ADHD. Sixteen adults with ADHD and 16 healthy adult participated in the study. After a diagnostic and baseline evaluation, 16 adults with ADHD participate in up to 16 sessions of working memory training program and the outcomes are evaluated. Healthy people did not receive any training. Working memory and attention, were examined prior to and following the interventions. Data analysis revealed that the working memory training used in the present study led to significant improvements of various aspects of attention, including focus and sustain attention and capacity of working memory. The findings indicate that working memory training programs can improve working memory performance and have the potential to facilitate attentional functioning in adult with ADHD as well.

Executive dysfunction is a hallmark of traumatic brain injury (TBI) and is associated with significant complications. Deficiency in problem-solving, emotion regulation, and attention is one of the most common phenomena after brain injury. This study aimed to evaluate the effectiveness of short-term intervention of dual executive function on problem-solving, emotion regulation, and selective attention in patients with traumatic brain injury. This quasi-experimental design used pre-test and post-test with a control group. Twenty subjects with brain injury were selected with the Purposive sampling method. They were randomly entered into two experimental and control groups (10 in the experimental group and 10 in the control group). After performing the pre-test, the experimental group received the short-term intervention and double executive function in 8 sessions of 90 minutes, while the control group did not receive any intervention. The assessment was performed in two stages of pre-test-post-test using a set of software tests of the Tower of London, Stroop and John and Gross (2003) Emotion Regulation Questionnaire. Analysis of covariance was used to analyze the data. The results showed a significant difference in the mean scores between the experimental group and the control group in all variables after the test. Therefore, it can be concluded that short-term intervention of dual executive function has a significant effect on improving attention, emotion regulation, and problem-solving in people with traumatic brain injury.

In recent years, the dramatic increase in the use of smartphones has led to the emergence of a psychological disorder called nomophobia, which can have consequences for individual's cognitive functions. The aim of this study was to compare sustained attention and selective attention between nomophobic and normal individuals. The research method was descriptive-comparative, and the sample included 60 students of Semnan University who were identified through screening among a group of 120 students and were divided into two groups of 30 nomophobic and normal. The research instruments included Nomophobia Questionnaire, Continuous Performance Test (CPT) and Stroop Test. Data were analyzed using two-way MANOVA in SPSS software version 26. The results of the Continuous Performance Test showed that the amount of Omission error and reaction time of nomophobic individuals was higher than normal performance individuals. In the Stroop test, the rate of errors and the interference score of nomophobic individuals were higher than normal individuals. Also, despite gender differences in some components of the continuous performance and Stroop tests, it was found that the interactive effect of nomophobia and gender on the results of these two tests is not significant. These results show that nomophobia can be involved in reducing sustained attention and impaired selective attention regardless of gender. Therefore, because of the continuous interaction of people with smartphones and the significant prevalence of nomophobia among young people, measures should be taken to prevent nomophobia and cognitive rehabilitation of nomophobic people.
 

In different parts of the world, people speak different languages ​​to each other. Some parts of the world are more linguistically rich and more than one language is spoken in those regions. The aim of this study was to evaluate and evaluate the executive functions of the brain including cognitive flexibility, selective attention and response inhibition in monolingual and bilingual male and female students of Bu Ali Sina University of Hamadan. This research has been done by descriptive and causal-comparative method using complex Stroop computer test. The statistical population selected for this study were bilingual and monolingual students of Bu Ali Sina University. The test was performed on 214 male and female students. Data obtained from 165 students were analyzed by independent t-test and one-way analysis of variance. The obtained results showed that there is a significant difference between gender and executive functions studied in this study. But there was no significant difference between bilingual and monolingual individuals with these functions. In this study, we concluded that gender affects the executive functions of the brain, but bilingualism and monolingualism do not affect the executive functions of the brain.