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| Home > Publications database > Neural signatures underlying deliberation in human foraging decisions |
| Journal Article | FZJ-2019-04610 |
; ; ;
2019
Psychonomic Society Publication
Austin, Tex.
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Please use a persistent id in citations: doi:10.3758/s13415-019-00733-z
Abstract: Humans have a remarkable capacity to mentally project themselves far ahead in time. This ability, which entails the mental simulation of events, is thought to be fundamental to deliberative decision making, as it allows us to search through and evaluatepossible choices. Many decisions that humans make are foraging decisions, in which one must decide whether an available offer is worth taking, when compared to unknown future possibilities (i.e., the background). Using a translational decision-makingparadigm designed to reveal decision preferences in rats, we found that humans engaged in deliberation when making foraging decisions. A key feature of this task is that preferences (and thus, value) are revealed as a function of serial choices. Like rats,humans also took longer to respond when faced with difficult decisions near their preference boundary, which was associated with prefrontal and hippocampal activation, exemplifying cross-species parallels in deliberation. Furthermore, we found thatvoxels within the visual cortices encoded neural representations of the available possibilities specifically following regretinducing experiences, in which the subject had previously rejected a good offer only to encounter a low-valued offer on thesubsequent trial.
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