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dc.contributor.author Horner, JM
dc.contributor.author Staddon, John ER
dc.coverage.spatial Netherlands
dc.date.accessioned 2011-03-23T13:35:37Z
dc.date.issued 1987-08
dc.identifier http://www.ncbi.nlm.nih.gov/pubmed/24925487
dc.identifier 0376-6357(87)90034-9
dc.identifier.issn 0376-6357
dc.identifier.uri http://hdl.handle.net/10161/3231
dc.description.abstract When subjects must choose repeatedly between two or more alternatives, each of which dispenses reward on a probabilistic basis (two-armed bandit ), their behavior is guided by the two possible outcomes, reward and nonreward. The simplest stochastic choice rule is that the probability of choosing an alternative increases following a reward and decreases following a nonreward (reward following ). We show experimentally and theoretically that animal subjects behave as if the absolute magnitudes of the changes in choice probability caused by reward and nonreward do not depend on the response which produced the reward or nonreward (source independence ), and that the effects of reward and nonreward are in constant ratio under fixed conditions (effect-ratio invariance )--properties that fit the definition of satisficing . Our experimental results are either not predicted by, or are inconsistent with, other theories of free-operant choice such as Bush-Mosteller, molar maximization, momentary maximizing, and melioration (matching).
dc.description.sponsorship NIMH, Duke
dc.language eng
dc.relation.ispartof Behav Processes
dc.relation.isversionof 10.1016/0376-6357(87)90034-9
dc.title Probabilistic choice: A simple invariance.
dc.type Journal article
duke.contributor.id jers
pubs.author-url http://www.ncbi.nlm.nih.gov/pubmed/24925487
pubs.begin-page 59
pubs.end-page 92
pubs.issue 1
pubs.organisational-group Duke
pubs.organisational-group Psychology and Neuroscience
pubs.organisational-group Trinity College of Arts & Sciences
pubs.publication-status Published
pubs.volume 15


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