Modeling motivation using goal competition in mental fatigue studies

Motivation can counteract the effects of mental fatigue. However, underlying mechanism by which motivation affects performance in mentally fatiguing tasks is obscure. In this paper, we propose goal competition as a paradigm to understand role and built three models fatigue studies demonstrate cognitive architecture named PRIMs. Each these explored impact reward on performance. Overall, decreased nonreward conditions but remained stable conditions. The comparisons between our empirical data showed that were able capture human We managed model changes levels adjusting value main task goals, controls with distractions. all modeled, best fits obtained linear decrease activation, suggesting general pattern. discuss possible mechanisms for activation decrease, potential motivation.