Sat, Apr 20, 2024
| فارسی
Volume 15, Issue 1 (Spring 2013)
Advances in Cognitive Sciences 2013, 15(1): 67-76 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Nazari M A, Mirloo M M, Soltanlou M, Roshani A, Asadzadeh S. Design And Development Of the Time Discrimination Threshold Computerized Task. Advances in Cognitive Sciences 2013; 15 (1) :67-76
URL: http://icssjournal.ir/article-1-242-en.html
URL: http://icssjournal.ir/article-1-242-en.html
Mohammad Ali Nazari * 
1, Mohammad Mahdi Mirloo2 , Mojtaba Soltanlou3 , Abbas Roshani4 , Somayeh Asadzadeh5
1, Mohammad Mahdi Mirloo2 , Mojtaba Soltanlou3 , Abbas Roshani4 , Somayeh Asadzadeh5
1- in neuroscience, University of Tabriz, Tabriz, Iran.
2- M.A. in general psychology, University of Tabriz, Tabriz, Iran.
3- Ph.D. student in cognitive neuroscience, University of Tabriz, Tabriz, Iran.
4- M.A. in control engineering, University of Tabriz, Tabriz, Iran.
5- B.A. student in clinical psychology, University of Tabriz, Tabriz, Iran.
2- M.A. in general psychology, University of Tabriz, Tabriz, Iran.
3- Ph.D. student in cognitive neuroscience, University of Tabriz, Tabriz, Iran.
4- M.A. in control engineering, University of Tabriz, Tabriz, Iran.
5- B.A. student in clinical psychology, University of Tabriz, Tabriz, Iran.
Abstract: (2516 Views)
Objective: The aim of the present study wasto design the Persian versionof the time discrimination task.
Method: Thirty-one volunteer elementary school students participated in this experiment. By means of a computerized test, selected pictures of the International Affective Pictures System (IAPS) were presented to all participants both in 1000 and 2000 milliseconds (ms). The discrimination threshold of subjects was then calculated using the Levitt’s proposed formula (1971).
Results: Participants required 261/5 msand 373/06 msto differentiate the comparative stimulus from target one in 1000 ms and 2000 ms, respectively. These values were considered as time discrimination threshold.
Conclusion: In conjunction with classic findings in psychophysics, the results of the current investigation indicated that when the intensity of stimulus increases, the magnitude of discrimination threshold rises accordingly. Meanwhile, doubling the intensity does not necessarily double the perceived discrimination threshold. We suggest prospective paradigm time discrimination studies toconsider using the currently developed task as an investigational tool.
Method: Thirty-one volunteer elementary school students participated in this experiment. By means of a computerized test, selected pictures of the International Affective Pictures System (IAPS) were presented to all participants both in 1000 and 2000 milliseconds (ms). The discrimination threshold of subjects was then calculated using the Levitt’s proposed formula (1971).
Results: Participants required 261/5 msand 373/06 msto differentiate the comparative stimulus from target one in 1000 ms and 2000 ms, respectively. These values were considered as time discrimination threshold.
Conclusion: In conjunction with classic findings in psychophysics, the results of the current investigation indicated that when the intensity of stimulus increases, the magnitude of discrimination threshold rises accordingly. Meanwhile, doubling the intensity does not necessarily double the perceived discrimination threshold. We suggest prospective paradigm time discrimination studies toconsider using the currently developed task as an investigational tool.
Type of Study: Research |
Subject:
Special
Received: 2012/11/21 | Accepted: 2013/01/20 | Published: 2013/03/21
Received: 2012/11/21 | Accepted: 2013/01/20 | Published: 2013/03/21
Send email to the article author
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
