Masoud Zahiry; Mehdi Shahbazi; Yadollah Binandeh
Abstract
The purpose of this study was to investigate the effect of colors and gender on the Coincidence anticipation timing task. Therefore 60 participants aged 8 to 10 years randomly into two groups (30 males and 30 females) participated and timing error was recorded by a coincidence-anticipation apparatus. ...
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The purpose of this study was to investigate the effect of colors and gender on the Coincidence anticipation timing task. Therefore 60 participants aged 8 to 10 years randomly into two groups (30 males and 30 females) participated and timing error was recorded by a coincidence-anticipation apparatus. For data analysis independent t-test,ANOVA and Tukey post hoc tests were used at the significant level of 0/05. Findings suggested no significant difference between boys and girls in coincidence anticipation timing task (p=0/289) and the lowest timing error in a blue background and also significant difference timing errors were observed between the blue background, with other color (P=0/001 and F(2,59)=22/17). The results of this study indicate that gender does not affect on the Coincidence anticipation timing task and the performance in background color blue can reduce timing errors in predicting the spatial and temporal stimuli. In genral the results of this study indicated that gender didn,t affect the Coincidence anticipation timing task and the blue background color would facilitate the performance and effectiveon reduce errors timing in stimuli predicting spatially and temporally.The purpose of this study was to investigate the effect of colors and gender on the Coincidence anticipation timing task. Therefore 60 participants aged 8 to 10 years randomly into two groups (30 males and 30 females) participated and timing error was recorded by a coincidence-anticipation apparatus.
Reyhaneh Rahdar Beik Qomi; Mehdi Shahbazi
Abstract
Decision making plays an important role in sport activities and is directly associated with sporting success or failure. On the other hand, one of the key issues in psychology of sports and behavioral sciences is sport orientation. The aim of this study was to investigate the relationship of ...
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Decision making plays an important role in sport activities and is directly associated with sporting success or failure. On the other hand, one of the key issues in psychology of sports and behavioral sciences is sport orientation. The aim of this study was to investigate the relationship of action and state orientation with decision making behavior of expert female football players. 27 players who attended competitions for at least 8 years participated in the present study. Action Control Scale (ACS-90) was used to specify action or state orientation of players. Then, to evaluate the performance of decision making of players, the images of real football situations were used. The players were required to respond correctly to one of the existing options (shooting, dribbling, passing). K-S test was applied to examine normal data distribution and multiple regression and Pearson correlation coefficient were used to analyze data at significance level of 0.05. Results showed a significance correlation between action orientation and accuracy and decision making behavior of action players (P<0.05); however, this correlation was not significant between action orientation and speed of decision making (P>0.05). Moreover, results indicated no significant relationships between state orientation and variables (accuracy, speed and decision making behavior) of state players (P>0.05). Finally, it can be inferred that action orientation in expert players has a correlation with accuracy in decision making and risk taking choices and it can facilitate reaching their goals.
Somayeh Tabatabai; Mehdi Shahbazi; Fazlolah Bagherzadeh
Abstract
The term autistic refers to the individuals who have a set of development disorders relevant to the central nervous system. These children are known to have deficiency in social interaction, language and communication. The aim of this study was to investigate the relationship between motor development ...
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The term autistic refers to the individuals who have a set of development disorders relevant to the central nervous system. These children are known to have deficiency in social interaction, language and communication. The aim of this study was to investigate the relationship between motor development and social development of 6-10-year-old autistic children of Mashhad city. The statistical sample involved 41 students with high–functioning autism (31 boys and 10 girls). The researcher calculated the students' social development scores using SCQ questionnaire. Using Lincoln-Oseretsky Motor Development Scale, the level of motor development was determined. In descriptive section, mean and standard deviation were used and in inferential section, Pearson correlation coefficient was applied with 95% confidence level. The results showed a significant relationship between students' motor development and their social development (P<0.05). Also, there was a significant relationship between the boys' gross motor skills, fine motor skills, hand-eye coordination and their social development (P<0.05). The girls' fine motor skills and hand-eye coordination were significantly related to their social development (P<0.05), but there was no significant relationship between the agility of fingers and social development in both groups (P>0.05). These results of the relationship between motor development and social development showed that motor skills can affect the improvement of autistic students.
Abolfazl Shayan; Fazlolah Bagherzadeh; Mehdi Shahbazi; Siroos Choobineh
Abstract
The vital role of exercise in many aspects of daily life and somewhat cognitivefunctions are acknowledged but a point that has recently gained researchers'attention is to investigate the effect of different types of exercises on cognitivefunctions and the mediating mechanisms of this effect. The aim ...
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The vital role of exercise in many aspects of daily life and somewhat cognitivefunctions are acknowledged but a point that has recently gained researchers'attention is to investigate the effect of different types of exercises on cognitivefunctions and the mediating mechanisms of this effect. The aim of this study was todetermine the effect of two types of endurance and resistance exercises on thelevels of attention and BDNF of sedentary students. Therefore, 46 sedentarystudents from University of Tehran (mean age 24.3+1.8 yr) were assigned to threegroups: endurance, resistance and control after the Stroop pretest. After bloodsamples had been collected, the subjects continued their exercise protocol for fiveweeks. Finally, at least 48 hours after the last session, the Stroop test wasperformed and blood samples were collected in order to eliminate the temporaryeffects of exercises. For data analysis, Kolmogorov–Smirnov test, paired sample ttest, one–way ANOVA, MANOVA test, Dunnett's T3 post hoc test and Pearsoncorrelation coefficient test were used (P≤0.05). Results showed a significantimprovement in the response time of Stroop test in both endurance and resistancegroups while expression of BDNF significantly increased only in endurance group(P<0.05). The control group showed no improvement in any variables. In addition,there was no significant difference between the effect of two types of exercise onthe response time of the Stroop test and expression of BDNF (P>0.05). There wasno significant correlation between the variations of response time of the Stroop testand expression of BDNF (P>0.05). Finally, this research indicated that exercisecan improve cognitive functions, but there was no significant difference betweenendurance and resistance exercises in response to this question that which activitywas more useful.
