학술논문

Does the brain calculate value?
Document Type
Article
Source
Trends in Cognitive Sciences. Nov2011, Vol. 15 Issue 11, p546-554. 9p.
Subject
*BRAIN function localization
*DECISION making
*VALUE (Economics)
*NEUROSCIENCES
*COGNITIVE science
*PSYCHOLOGY
*COMPARATIVE studies
Language
ISSN
1364-6613
Abstract
How do people choose between options? At one extreme, the ‘value-first’ view is that the brain computes the value of different options and simply favours options with higher values. An intermediate position, taken by many psychological models of judgment and decision making, is that values are computed but that the resulting choices depend heavily on the context of available options. At the other extreme, the ‘comparison-only’ view argues that choice depends directly on comparisons, with or even without any intermediate computation of value. In this paper, we place past and current psychological and neuroscientific theories on this spectrum, and review empirical data that have led to an increasing focus on comparison rather than value as the driver of choice. [Copyright &y& Elsevier]