Document Type : Research Paper
Authors
1
Department of Motor Behavior, Faculty of Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2
Motor Behavior, Sport Sciences Faculty, Shahid Chamran University, Ahvaz, Iran
3
Department of Motor Behavior, Faculty of Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz. Iran
10.22080/jsmb.2021.15642.3049
Abstract
Introduction: One of the factors that affects reaction time is the Psychological refractory period, which refers to the condition in which two stimuli are presented with a short time interval. Because of the decreased period of time between the two stimuli, the response time to second stimulus is increased. The aim of this research is to investigate the effect of the number of stimulus-response and the time interval between each stimulus on the Psychological refractory period in athletes and non-athletes.
Method: This research followed an intergroup semi-experimental design, and can be placed in the field of fundamental-applied research. For this purpose, 15 male athletes from Shahid Chamran University of Ahwaz, between 20 to 25 years of age, were selected by convenience targeted sampling. The Dual task test, which tests the number of stimulus-response, was administered using a Psychological refractory period device. This test included a number of different stimulus-responses (one, two, four, and eight) for the first and second stimuli, and four time intervals (100, 200, 400, and 600 milliseconds) between the two stimuli. Moreover, 4x4 one way repeated measures analysis of variance tests (the number of stimulus-response × intervals time) were used in which the Bonferroni test was used.
Results: The results showed that the number of stimulus-response (F42.3= 9/212, P= 0/0001), the time interval between the two stimuli (F42.3= 22/016, P= 0/0001), and the interactive effect of the number of stimulus-response at different intervals (F126.9= 3/486, P= 0/001) are significant.
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