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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1991-7-18
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pubmed:abstractText |
In Experiment 1, 2 groups of human subjects were trained to respond to 1 of 2 light intensity stimuli, S2 or S4, and then were tested for generalization with a randomized series of increasing values from S1 to S11. Both groups, including the group trained to respond to dimmer value, showed peak shifts to a brighter more centrally located test stimulus. In Experiment 2, which used line angle stimuli, both the size of the difference between S+ and S- and the range of test stimuli that extended beyond S+ were varied. The larger the S(+)-S- separation and the larger the range, the greater was the peak shift obtained. In Experiment 3, training involved an S- (line angle) surrounded by 2 S+ values with testing symmetrical about the training values and covering either a narrow or a wide range. The wide range produced greater peak shifts in both directions from S-. All 3 experiments support an adaptation-level interpretation of intradimensional discrimination learning and generalization test performance in human subjects. Related work with animals suggests the presence of similar processes.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0097-7403
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
130-40
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2045769-Adult,
pubmed-meshheading:2045769-Animals,
pubmed-meshheading:2045769-Attention,
pubmed-meshheading:2045769-Decision Theory,
pubmed-meshheading:2045769-Discrimination Learning,
pubmed-meshheading:2045769-Female,
pubmed-meshheading:2045769-Generalization, Stimulus,
pubmed-meshheading:2045769-Humans,
pubmed-meshheading:2045769-Light,
pubmed-meshheading:2045769-Male,
pubmed-meshheading:2045769-Psychomotor Performance,
pubmed-meshheading:2045769-Visual Perception
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pubmed:year |
1991
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pubmed:articleTitle |
Peak shift revisited: a test of alternative interpretations.
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pubmed:affiliation |
Department of Psychology, University of Colorado, Boulder 80309-0345.
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pubmed:publicationType |
Journal Article
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