A Quantitative Relationship between Signal Detection in Attention and Approach/Avoidance Behavior

Frontiers in Psychology

Vijay Viswanathan¹ 

关键词: attention;    reward;    relative preference;    signal detection theory;    psychophysics;    iterative modeling;    neuroeconomics;   

DOI  :  10.3389/fpsyg.2017.00122

学科分类：心理学（综合）

来源: Frontiers

【 摘 要 】

This study examines how the domains of reward and attention, which are often studied as independent processes, in fact interact at a systems level. We operationalize divided attention with a continuous performance task and variables from signal detection theory (SDT), and reward/aversion with a keypress task measuring approach/avoidance in the framework of relative preference theory (RPT). Independent experiments with the same subjects showed a significant association between one SDT and two RPT variables, visualized as a three-dimensional structure. Holding one of these three variables constant, further showed a significant relationship between a loss aversion-like metric from the approach/avoidance task, and the response bias observed during the divided attention task. These results indicate that a more liberal response bias under signal detection (i.e., a higher tolerance for noise, resulting in a greater proportion of false alarms) is associated with higher “loss aversion.” Furthermore, our functional model suggests a mechanism for processing constraints with divided attention and reward/aversion. Together, our results argue for a systematic relationship between divided attention and reward/aversion processing in humans.

【 授权许可】

CC BY