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Research article summary:
A theoretical framework for understanding the effects of simultaneous base-rate and payoff manipulations on decision criterion learning in perceptual categorization.
Abstract Extract:
Observers completed perceptual categorization tasks in which base rates and payoffs were manipulated separately or simultaneously across a range of category discriminabilities. Decision criterion estimates from the simultaneous base-rate/payoff ... (Full abstract text below) Published 2003Mar
in Journal: J Exp Psychol Learn Mem Cogn
(Language : eng)
Full Pubmed Extract
This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:
1. J Exp Psychol Learn Mem Cogn.
2003 Mar;29(2):307-20
A theoretical framework for understanding the effects of simultaneous base-rate and payoff manipulations on decision criterion learning in perceptual categorization.
Maddox WT, Bohil CJ
Department of Psychology, University of Texas at Austin, 78712, USA. maddox@psy.utexas.edu
Observers completed perceptual categorization tasks in which base rates and payoffs were manipulated separately or simultaneously across a range of category discriminabilities. Decision criterion estimates from the simultaneous base-rate/payoff conditions were closer to optimal than those predicted from the independence assumption, in line with predictions from the flat-maxima hypothesis. A hybrid model that instantiated the flat-maxima and competition between reward and accuracy maximization hypotheses was applied to the data as well as used in a reanalysis of C. J. Bohil and W.J. Maddox's (2001) study. The hybrid model was superior to a model that incorporated the independence assumption, suggesting that violations of the independence assumption are to be expected and are well captured by the flat-maxima hypothesis, without requiring any additional assumptions.
PMID : 12696818 [PubMed - Indexed for MEDLINE]
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Full Author Information
| First Name | LastName | Initials |
| W Todd | Maddox | WT |
| Corey J | Bohil | CJ |
Affiliation: Department of Psychology, University of Texas at Austin, 78712, USA. maddox@psy.utexas.edu
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MESH categories and related page links
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Category links from this article:- Decision Making
- Decision Support Techniques
- Decision Theory
- Diagnosis
- Discrimination Learning
- Humans
- Motivation
- Probability Learning
- Problem Solving
- Set (Psychology)
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