AUTHOR=Viswanathan Vijay , Sheppard John P. , Kim Byoung W. , Plantz Christopher L. , Ying Hao , Lee Myung J. , Raman Kalyan , Mulhern Frank J. , Block Martin P. , Calder Bobby , Lee Sang , Mortensen Dale T. , Blood Anne J. , Breiter Hans C. TITLE=A Quantitative Relationship between Signal Detection in Attention and Approach/Avoidance Behavior JOURNAL=Frontiers in Psychology VOLUME=8 YEAR=2017 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2017.00122 DOI=10.3389/fpsyg.2017.00122 ISSN=1664-1078 ABSTRACT=

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.