The effects of incentive framing on performance decrements for large monetary outcomes: behavioral and neural mechanisms.
There is a nuanced interplay between the provision of monetary incentives and behavioral performance. Individuals' performance typically increases with increasing incentives only up to a point, after which larger incentives may result in decreases in performance, a phenomenon known as "choking." We investigated the influence of incentive framing on choking effects in humans: in one condition, participants performed a skilled motor task to obtain potential monetary gains; in another, participants performed the same task to avoid losing a monetary amount. In both the gain and loss frame, the degree of participants' behavioral loss aversion was correlated with their susceptibility to choking effects. However, the effects were markedly different in the gain and loss frames: individuals with higher loss aversion were susceptible to choking for large prospective gains and not susceptible to choking for large prospective losses, whereas individuals with low loss aversion choked for large prospective losses but not for large prospective gains. Activity in the ventral striatum was predictive of performance decrements in both the gain and loss frames. Moreover, a mediation analysis revealed that behavioral loss aversion hindered performance via the influence of ventral striatal activity on motor performance. Our findings indicate that the framing of an incentive has a profound effect on an individual's susceptibility to choking effects, which is contingent on their loss aversion. Furthermore, we demonstrate that the ventral striatum serves as an interface between incentive-driven motivation and instrumental action, regardless of whether incentives are framed in terms of potential losses or gains.
Department of Biomedical Engineering, Johns Hopkins University School of Medicine and Kennedy Krieger Institute, Baltimore, Maryland 21205, Division of Biology and Biological Engineering, Computation and Neural Systems, and vchib@jhu.edu.
Vikram S
VS
Chib
Division of Biology and Biological Engineering, Computation and Neural Systems, and.
Shinsuke
S
Shimojo
Computation and Neural Systems, and Division of Humanities and Social Sciences, California Institute of Technology, Pasadena, California 91125.
John P
JP
O'Doherty
D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D009042:Motivation; D011597:Psychomotor Performance; D014040:Token Economy; D066328:Ventral Striatum / Q000502:physiology*
gain; loss; motor; reward; ventral striatum