Motor Behavior

The Effect of the Second Task Complexity in Difference Time Interval on the First Task Reaction Time Based on Psychology Refractory Period Paradigm

Document Type : Research Paper

Authors

1 Shahidbeheshti university

2 Shahid beheshti university

Abstract
The purpose of this study was to compare the effect of different types of second stimulus (simple, discrimination, choice) at different time intervals on the first stimulus reaction time in the psychological refractory period paradigm. Thirty-six female students, aged 18–24 (mean=21) years, were randomly assigned to three experimental groups of 12 each: simple, discrimination and choice. For each group, there were five measurement phases based on the time interval between two stimuli (50, 100, 200, 400, and 1000 ms).  Data was analyzed with repeated measures and mixed factorial analysis of variance including factors of time intervals and groups. Results showed that in the first stimulus reaction time, the main effect of group (F2,33 =15.40, P=0.001), the main effect of different time interval (F3,93=16.79, P=0.001), and the interaction between group and time interval (F5,93=2.42, P=0.03) was significant. In the second stimuli reaction time, the main effect of group (F2,33=12.04, P=0.001) was significant; the main effect of different time interval (F3, 100 = 2.57, P=0.05) and the interaction between group and time interval (F3,100=1.63, P=0.05) was not significant. Findings showed that the second stimulus type and the interval between two stimuli significantly affect the second stimulus reaction time delay as well as the first stimulus reaction time.

Keywords

Main Subjects

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Motor Behavior
Volume 8, Issue 25
Fall 2016
October 2016
Pages 103-120

  • Receive Date 31 October 2015
  • Revise Date 23 January 2016
  • Accept Date 25 January 2016

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