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Neural signatures underlying deliberation in human foraging decisions.
Cognitive, Affective, & Behavioral Neuroscience ( IF 2.9 ) Pub Date : 2019-12-01 , DOI: 10.3758/s13415-019-00733-z
Samantha V Abram 1, 2 , Michael Hanke 3, 4 , A David Redish 5 , Angus W MacDonald 1, 6
Affiliation  

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 evaluate possible 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-making paradigm 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 that voxels within the visual cortices encoded neural representations of the available possibilities specifically following regret-inducing experiences, in which the subject had previously rejected a good offer only to encounter a low-valued offer on the subsequent trial.

中文翻译:

在人类觅食决策中经过深思熟虑的神经签名。

人类具有非凡的能力,能够在心理上将自己推向遥遥领先的时代。这种需要对事件进行心理模拟的能力被认为是进行慎重决策的基础,因为它使我们能够搜索和评估可能的选择。人类做出的许多决定都是觅食决定,与未知的未来可能性(即背景)相比,必须决定一项可用的提议是否值得。使用旨在揭示大鼠决策偏好的翻译决策范例,我们发现人类在制定觅食决策时会进行深思熟虑。该任务的一个关键特征是偏好(以及价值)的显示是一系列选择的函数。像老鼠一样 当人类在偏好边界附近面临困难的决策时,人类也需要更长的时间做出反应,这与前额叶和海马的激活相关联,体现了跨物种平行思考的例证。此外,我们发现视觉皮层中的体素编码了可用的可能性的神经表示,特别是在引起后悔的经历之后,在该经历中,受试者先前拒绝了一个好报价,只是在随后的试验中遇到了一个低价的报价。
更新日期:2019-11-01
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