The neural computation of inconsistent choice behavior
| Autor: | Ryan Webb, Dino J. Levy, Vered Kurtz-David, Dotan Persitz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male 0301 basic medicine Adolescent Computer science Science Computation media_common.quotation_subject Decision Making Models Neurological General Physics and Astronomy Rationality 02 engineering and technology Choice Behavior Article General Biochemistry Genetics and Molecular Biology 03 medical and health sciences Models of neural computation Perception Humans Bold fmri lcsh:Science media_common Brain Mapping Neural correlates of consciousness Multidisciplinary Brain General Chemistry 021001 nanoscience & nanotechnology Magnetic Resonance Imaging 030104 developmental biology Irrational number Female lcsh:Q 0210 nano-technology Cognitive psychology |
| Zdroj: | Nature Communications, Vol 10, Iss 1, Pp 1-14 (2019) Nature Communications |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-019-09343-2 |
| Popis: | Humans are often inconsistent (irrational) when choosing among simple bundles of goods, even without any particular changes to framing or context. However, the neural computations that give rise to such inconsistencies are still unknown. Similar to sensory perception and motor output, we propose that a substantial component of inconsistent behavior is due to variability in the neural computation of value. Here, we develop a novel index that measures the severity of inconsistency of each choice, enabling us to directly trace its neural correlates. We find that the BOLD signal in the vmPFC, ACC, and PCC is correlated with the severity of inconsistency on each trial and with the subjective value of the chosen alternative. This suggests that deviations from rational choice arise in the regions responsible for value computation. We offer a computational model of how variability in value computation is a source of inconsistent choices. Humans are often inconsistent when choosing between alternatives, but the neural basis of deviations from economic rationality is unclear. Here, the authors show that irrational choices arise in the same brain regions responsible for value computation, implying that brain ‘noise’ may underlie inconsistency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|