Prediction of risk-taking by using cognitive task in the framework of signal detection theory

  • سال انتشار: 1398
  • محل انتشار: هشتمین کنگره علوم اعصاب و پایه و بالینی
  • کد COI اختصاصی: NSCMED08_307
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 445
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نویسندگان

Ayda Khayyat Naghadehi

Department of psychology, Faculty of education and psychology, University of Tabriz

Mohammad Ali Nazari

Department of Neuroscience, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran

Khalil Esmailpoor

Department of psychology, Faculty of education and psychology, University of Tabriz

Sevda Abbasi Balanji

Department of psychology, Faculty of education and psychology, University of Tabriz

چکیده

Background and Aim : The purpose of this study was to predict the risk-taking of individuals, by using Go-Nogo cognitive task in the framework of signal detection theory (SDT). SDT is based on the fact that when one person perceive sensory experience, must also make a perceptual decision by answering yes or no . SDT is generally used to measure perception, memory, and performance of specific tasks, and is used as a tool in separating the subject s behavior into two parts: sensitivity and response bias. This study applied the Go-Nogo task to predict the risk-taking, by using sensitivity and response bias of SDT.Methods : For this purpose, 149 participants took part in the study. They performed the BART task, Barratt scale and two types of Go-Nogo task (simple and cued), Separately.Results : : The results were compared and analyzed using Pearson correlation coefficient and discriminant analysis, and was shown that impulsivity (as one of the factors influencing risk-taking) was inversely correlated with the sensitivity index of the Go-Nogo task.Conclusion : These results means that the high degree of impulsivity and accordingly risk-taking is related to sensitivity index. Also, the not cued Go-Nogo task, can identify high risk people from low risk one. But the cued Go/Nogo task is not able to identify the two groups from each other.

کلیدواژه ها

Go-Nogo task; Sensitivity; Response Bias; Signal Detection Theory; SDT; Risk-Taking

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