چکیده:
Objective: The main objective of this study was to investigate the explicit memory bias in the people with high BAS/BIS sensitivity in the different manipulated mood states.
Methods: By using purposive sampling method, seventy-four participants (undergraduate students) were selected based on z-scores of 480 using the Carver and White’s BAS/BIS scale. They were distributed as: 24 with high BAS sensitivity, 25 with high BIS sensitivity and 25 as the control group. Data were gathered in the framework of quasi-experimental design. All the subjects were presented with emotional words for memorization. Then, the participants in each group were randomly assigned to either a sad or a happy mood induction prior to performing a recognition memory task. Reaction Time (RT), response bias (ß) and sensitivity (d’) for the emotional word recognition was calculated using the signal detection theory.
Results: Reaction time for recognizing the negative words in the sad mood condition was shorter in the high BIS sensitivity group, relative to the high BAS sensitivity group and controls. No significant differences were observed for sensitivity (d’), neither between groups nor within the control. However, lower ß for negative words was observed in the high BIS sensitivity group only.
Conclusion: Results indicated that individuals with high BIS sensitivity use more liberal strategy for the negative word recognition.
خلاصه ماشینی:
Research Paper: Using Signal Detection Theory to Investigate the Impact of Mood Induction on Emotional Information Processing in High BAS/BIS Individuals Mohammad Ali Nazari1* /, Marzieh Alivandivafa2/, Sayra Lotfi3/, Mohammad Rostami4/, Sanaz Soltani2 / 1.
Using Signal Detection Theory to In-vestigate the Impact of Mood Induction on Emotional Information Processing in High BAS/BIS Individuals.
/: Funding: See Page 165 / Copyright: The Author(s) Article info: Received: 16 Dec 2017 First Revision: 26 Dec 2017 Accepted: 14 Apr 2018 Published: 01 Jul 2018 Keywords: Emotion, Memory, Mood, Signal detection theory, Personality ABSTRACT Objective: The main objective of this study was to investigate the explicit memory bias in the people with high BAS/BIS sensitivity in the different manipulated mood states.
A study of the substance of Gray’s theory and the trait-congruency hypothesis points to the conclusion that the personality traits associated with BAS and BIS sensitivity, selectively processed the pleas-ant and unpleasant emotional information, respectively.
The main objective of the present study is to investigate–within the mold of mood-congruency and trait-congruency hypotheses–the explicit memory bias in the people with high BAS and BIS sensitivity in different manipulated moods state.
The results pointed to the fact that subjects with high BIS sensitivity, when exposed to sad mood induction, recognized the negative emotional words significantly faster than individuals with high BAS sensitivity and the control group.
In this study, subjects with high BIS sensitivity, as opposed to the BAS and control groups, exhibited bias in response to the negative emotional stimuli in terms of the reaction time and β.
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