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Showing 4 results for Dehghan

J Dehghanizadeh, H. Mohammadzadeh, F. S. Hosseini,
Volume 1, Issue 1 (12-2013)

The aim of this study was to investigate the effects of gymnastics training, as a motor activity, on the mental rotation. This Study was carried out considering an experimental group, students of physical education practicing gymnastics training, and a control group, students of the other majors of the faculty of humanities in each group there were 40 students, 20 males and 20 females. First, the two groups took the mental rotation test of Peters et al (1995), and then the experimental group has undergone gymnastics training for 9 weeks. After the training sessions, both groups were tested again. To examine the differences in pre-test and post-test scores of the two groups, one way analysis of covariance was used, and to examine the differences of mental rotation between the two groups in pre-test scores, T test was used. The findings showed significant difference in the scores of the post- test compared to those of the pre-test, and it was shown in the experimental group. The difference between the scores of the students of physical education and the scores of the students of other majors of the faculty of humanities was significant to the benefit of the students of physical education. Furthermore, between the scores of the girls and boys in the mental rotation, significant difference was observed to the benefit of boys. In the present study, the effect of the gymnastics training program on the ability of mental rotation was concluded and this conclusion showed the effects of the program of motor intervention on the spatial and cognitive abilities

Sepideh Dehghani, Reza Rostami, Mohammad Ali Besharat, Reza Zomorrodi, Homayoun Vahedi,
Volume 7, Issue 3 (volume7, Issue 3 2019)

Irritable bowel syndrome (IBS) is a chronic functional gastrointestinal disorder that is characterized by abdominal pain, discomfort and change in the intestinal habits. The aim of this study was the comparison of brain oscillations features between patients with IBS and healthy control, speciallity in alpha frequency band by using rest-electroencephalography (EEG). 11 IBS patients (7 females and 4 male) and 11 healthy (7 females and 4 male), gender and age-matched, were selected and brain oscillations were recorded by a 64-channel EEG at rest in eye-closed condition. Alpha power, peak alpha frequency and frontal alpha asymmetry were calculated and analyzed by fast Fourier transform and independent t test. The results showed that in IBS group, the average of alpha was higher, the peak alpha frequency and frontal alpha asymmetry are lower than healthy control. Our findings indicated that difference between healthy control and IBS group in their cortical functions and generated brain wave oscillation, specifically in alpha frequency bands. Theses results may serve as a biomarker and prognostic tools for IBS treatments.

Masoud Dehghan, Nima Moshtaghi,
Volume 9, Issue 1 (3-2021)

The present study aimed at investigating the topic shift in the discourse of the senile dementia of the Alzheimer's type based on neurolinguistics perspective within the framework of Crow's model (1983). The methodological nature of this quantitative research was casual-comparative; and the data include 20 subjects (10 senile dementia of the Alzheimer's type subjects and 10 normal elderly subjects). To determine the severity of dementia, the Clinical Dementia Rating Scale was administered and subjects with a score (0.5 ≤ X< 2) were selected. Then, they answered the questions about their families, daily activities. Moreover, the conversations were recorded and transcribed. The utterances were coded according to Dijkstra et al. model (2004), and they were categorized according to Crow's model (1983). Finally, the statistic results obtained using of independent t-test. The findings indicate significantly different Topic Shift (P=0.001) and Topic Maintenance (P=0.01) in the discourse of both groups that occurred Within Turn and Across Turn. The results showed that topic shift has much more frequency in the senile dementia of the Alzheimer's type subjects’ discourse occurring more often Within Turn. Also, Topic Initiation was Type of Shift having the most frequency, and also the most important Reason for Shift was related to Failure to Continue.

Amir-Homayun Hallajian, Fateme Dehghani-Arani, Reza Rostami, Mozhdeh ‌ Bayat, Yasamin Rahmati,
Volume 9, Issue 4 (volume9, Issue 4 2022)

The temporo-parietal junction is a key region in the theory of mind process. Numerous brain imaging studies have demonstrated its involvement in the mentalizing process and its under-activation in autism. This study aimed to investigate the causal relationship between rTPJ activation and implicit mentalizing in autism spectrum disorder. This study is a single-blind Quasi-experimental study with a repetitive measures design. Nine children and adolescents with autism were recruited by convenience sampling method using Gilliam autism rating scale (GARS), Social Responsiveness Scale (SRS), and Stanford-Binet (SB). Afterward, they were assigned to three randomly ordered stimulation sessions: cTBS, iTBS, and sham. Immediately after each session indexes related to the subject’s implicit mentalizing were measured by a computer-based task. Repeated-measures ANOVA results demonstrated that the active stimulation sessions improved implicit mentalizing compared to sham sessions. It seems that there is a causal relation between rTPJ activation and implicit mentalizing.

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