Xiaoning Zhao, Jinsheng Hu, Meng Liu, Qi Li, Qingshuo Yang
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引用次数: 0
Abstract
Objectives: This study aimed to investigate the characteristics of attentional capture by reward signals in individuals with depression during classical conditioning.
Methods: A variant of the additional singleton paradigm was adopted with a high- or low-reward signal as the prominent distracting stimulus. In Experiment 1, 46 participants with depressive symptoms and 46 healthy controls were asked to conduct a keypress response to the visual target. In Experiment 2, 58 participants with depressive symptoms and 58 healthy controls were asked to conduct a fixation response to the visual target.
Results: In the keypress response task, the presence of high-reward signals slowed down the responses of participants in the control group, whereas the response times of individuals with depression were not significantly affected. In the fixation response task, when the high-reward signal was presented, individuals with depression were more likely to choose the target location as the first saccade destination, compared with healthy controls. In addition, individuals with depression exhibited fewer oculomotor capture by high-reward signals than healthy controls, a trait which was closely linked to the enhanced saccadic inhibition.
Conclusion: The results of our study indicated that individuals with depression exhibited an abnormality in attentional capture by reward-related conditioned stimuli during classical conditioning.
期刊介绍:
The major focus of Behaviour Research and Therapy is an experimental psychopathology approach to understanding emotional and behavioral disorders and their prevention and treatment, using cognitive, behavioral, and psychophysiological (including neural) methods and models. This includes laboratory-based experimental studies with healthy, at risk and subclinical individuals that inform clinical application as well as studies with clinically severe samples. The following types of submissions are encouraged: theoretical reviews of mechanisms that contribute to psychopathology and that offer new treatment targets; tests of novel, mechanistically focused psychological interventions, especially ones that include theory-driven or experimentally-derived predictors, moderators and mediators; and innovations in dissemination and implementation of evidence-based practices into clinical practice in psychology and associated fields, especially those that target underlying mechanisms or focus on novel approaches to treatment delivery. In addition to traditional psychological disorders, the scope of the journal includes behavioural medicine (e.g., chronic pain). The journal will not consider manuscripts dealing primarily with measurement, psychometric analyses, and personality assessment.