Reward devaluation

Reward devaluation refers to a psychological and neurobiological phenomenon where the subjective value or motivational significance of a reward diminishes over time, often due to repeated exposure, satiation, or changes in contextual relevance.[1]

Overview

This process is critical in behavioral neuroscience, cognitive psychology, and economics, as it influences decision-making, learning, and adaptive behavior. For example, animals or humans may reduce their effort to obtain a reward if its perceived value decreases (e.g., due to overconsumption or negative associations). The concept is often studied in paradigms like operant conditioning, where devaluation of a reinforcer (e.g., food) can weaken previously learned behaviors. Clinically, aberrant reward devaluation mechanisms are implicated in psychiatric conditions such as depression, where patients exhibit anhedonia (diminished pleasure in rewarding activities) and a hypersensitivity to negative outcomes, potentially reflecting dysregulated interactions between the orbitofrontal cortex (OFC),[2] anterior cingulate cortex (ACC),[3] and basolateral amygdala (BLA).[4] These regions are thought to underlie the inability to update reward values in response to changing environmental or internal states, perpetuating motivational deficits. The phenomenon also plays a role in understanding disorders like addiction, where impaired devaluation mechanisms may drive compulsive reward-seeking despite adverse consequences.

References

  1. ^ Rolls, Barbara J. (27 April 2009). "Sensory-specific Satiety". Nutrition Reviews. 44 (3): 93–101. doi:10.1111/j.1753-4887.1986.tb07593.x. PMID 3515243.
  2. ^ Pickens, Charles L.; Saddoris, Michael P.; Gallagher, Michela; Holland, Peter C. (2005). "Orbitofrontal Lesions Impair Use of Cue-Outcome Associations in a Devaluation Task". Behavioral Neuroscience. 119 (1): 317–322. doi:10.1037/0735-7044.119.1.317. PMC 1201523. PMID 15727536.
  3. ^ Yuan, Zhengwei; Qi, Zhongyang; Wang, Ruiyu; Cui, Yuting; An, Sile; Wu, Guoli; Feng, Qiru; Lin, Rui; Dai, Ruicheng; Li, Anan; Gong, Hui; Luo, Qingming; Fu, Ling; Luo, Minmin (December 2023). "A corticoamygdalar pathway controls reward devaluation and depression using dynamic inhibition code". Neuron. 111 (23): 3837–3853.e5. doi:10.1016/j.neuron.2023.08.022. PMID 37734380.
  4. ^ Wellman, Laurie L.; Gale, Karen; Malkova, Ludise (4 May 2005). "GABA A -Mediated Inhibition of Basolateral Amygdala Blocks Reward Devaluation in Macaques". The Journal of Neuroscience. 25 (18): 4577–4586. doi:10.1523/JNEUROSCI.2257-04.2005. PMC 6725040. PMID 15872105.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.