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Showing 4 results for Nejati

Dr Vahid Nejati, Mr Saman Kamari, Mr Esmaeil Shiri, Mr Farhad Radfar,
Volume 3, Issue 3 (3-2016)
Abstract

The purpose of present study is determining semantic network for selected Persian words and designing false memory scale (examination) based on it. This present research is cross sectional studies. In this research, two studies were designed. In the first study, selected word presented to 30 individuals and they should write down related word with free association. Key words (Critical Lure) selected from Roediger Mc Dermot (1995) in false memory scale. In the second study, list of words presented Without key words to 80 participants and recall and recognition of words were measured. Descriptive statistics and Pearson correlation test was used for analysis. Findings show that recall and recognition were significantly correlated (P< 0/001). Key words recall and list word recall are significantly correlated (r=0/66). Recall and recognition are significantly correlated (r= 0/41). Participants recall 19% and recognize 51% of words. Present study prepare word list for false memory test that can be used for study false memory in Persian language.


Azin Sarraj Khorrami, Vahid Nejati,
Volume 7, Issue 1 (volume7, Issue 1 2019)
Abstract

Children with ADHD symptoms prefer smaller and immediate gain rather than bigger and long-term ones. This problem would result in impulsive  behaviors and decision making. The aim of this study was to show the effect of transcranial Direct Current Stimulation (tDCS) on DLPFC and VMPFC on Improvement of delay discounting in children with Attention Deficit and Hyperactivity Symptoms.In this study, 20 children with hyperactivity and attention deficit symptoms were selected by available sampling method and each of the subjects participated in three montages including anodal/cathodal tDCS on dorsolateral prefrontal cortex and ventral medial prefrontal cortex, the reversed montage, and sham stimulation condition and assessed by delay discounting task. The findings show that there is significant difference in the performance of the subjects in the delay discounting task which was performed on different stimulation positions p<0/05 and anodal stimulation of VMPFC significantly improved delay discounting.

Neda Nazarboland, Ameneh Tahmasi, Vahid Nejati,
Volume 7, Issue 3 (volume7, Issue 3 2019)
Abstract

The aim of this study was to investigate the effectiveness of cognitive rehabilitation, on improving the executive functions of selective attention, inhibitory control and working mwmory in elderly people with mild cognitive impairment. This experimental study was a Single Subject of type A-B, which 6 elderly (4 women and 2 men) with an average age of 62 years old were selected via  purposeful convenience sampling and randomly assigned into two groups of control (n=3) and experimental (n=3). The evaluation of selective attention and inhibitory control was done using Stroop, Go/NO Go and N-back tests, and the "ARAM" rehabilitation program was presented in 10 one-hour personal sessions for each experimental group subjective. All subjective in both groups was evaluated 6 times (before, during, just after and 2 months following the intervention) and also control group were evaluated simultaneously without receiving any interventions. Using visual analysis, collected data revealed that the scores of both tests of executive functions in experimental group, were steadily increased all through intervention, while the control group scores’ did not make significant changes. Also, two-month follow-up evaluations showed a stable improvement in executive functions of the experimental group. Therefore, it can be concluded that cognitive rehabilitation based on ARAM program has improved the functions of selective attention, inhibitory control and working memory in elderly with mild cognitive impairment. As there are many documentaries suggesting possibility of leading mild cognitive impairment to more serious cognitive disabilities such as Alzheimer’s disease, such findings can confirm possibility of improving cognitive functions of elderly people with mild cognitive impairment with, with lower therapeutic costs applying the help of technology
Dr Jalil Fathabadi, Dr Vahid Nejati, Dr Neda Nazarboland, Dr Vahid Sadeghi Firooz Abadi, Mr Salar Nazarzadeh Gigloo,
Volume 11, Issue 1 (Volume11, Issue 1 2023)
Abstract

Abstract
The purpose of this study was to investigate the effect of computer-based cognitive rehabilitation on cognitive regulation of emotion and emotion understanding in children with specific learning disorders. This research was conducted in a semi-experimental way (pre-test - post-test with a control and follow-up group). The statistical population of this study consisted of all the students with specific learning disorders (10-12 years old), who had been referred to the learning disorders center in Ardabil between the first of October and the middle of November 2017 (123 people). 30 of them were selected through purposive sampling (selection of volunteer students to participate in the research) (16 boys and 14 girls) and the emotional regulation questionnaires of Garnefsky et al. in identifying emotions and difficulty in describing emotions) were completed in three stages. The students of the experimental group completed the tasks of the cognitive rehabilitation package in 12 sessions of 45 minutes in a period of four weeks. The results of the covariance analysis of the data showed that the cognitive rehabilitation package based on a computer has an effect on improving rumination, positive refocusing, refocusing on planning, positive reappraisal, and acceptance of cognitive regulation of emotions in children with specific learning disorders, as well as understanding their emotions. The significance and comparison of the post-test results with the one-month follow-up test indicate the stability of this effect. Therefore, since these students are facing problems in cognitive regulation and emotional understanding, such interventions can solve their problems in this field.
 

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