| Stimulus motion and retrospective time judgments. | |
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MedLine Citation:
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PMID: 11820428 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effect of stimulus motion on retrospective time judgments was investigated in four experiments. Subjects reproduced the duration of a 32-s interval which was filled by either a stationary or moving visual element presented on a computer monitor. In Experiments 1 and 4, the element moved horizontally back and forth, and in Experiments 2 and 3 it traced a circular pathway. In Experiments 1 and 2, the element moved at speeds of either 5 or 20 cm/s. In Experiment 3, it moved at a constant speed, alternating direction between clockwise and anti-clockwise rotation once every 1, 4, 8 or 16 s. In Experiment 4 the element moved at linear speeds of 1, 2, 4, 8 or 16 cm/s back and forth along a 16 cm horizontal path thereby alternating between left- and rightward motion-directions once every 16, 8, 4, 2 and 1 s, respectively. Temporal reproductions were not systematically influenced by stimulus speed. Rather, the pattern of results indicated a nonmonotonic relationship between remembered duration and the frequency of motion-direction changes; whereas remembered duration was unaffected by either infrequent or very frequent rates of changes, moderate rates of motion-changes lengthens remembered duration. These findings are discussed in relation to the change models of retrospective timing, and the claim that stimulus speed, as distinct from changes in the direction of stimulus motion, is not an important determinant of retrospective timing. |
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Authors:
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John Predebon |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Acta psychologica Volume: 109 ISSN: 0001-6918 ISO Abbreviation: Acta Psychol (Amst) Publication Date: 2002 Feb |
Date Detail:
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Created Date: 2002-01-31 Completed Date: 2002-02-20 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0370366 Medline TA: Acta Psychol (Amst) Country: Netherlands |
Other Details:
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Languages: eng Pagination: 213-25 Citation Subset: IM |
Affiliation:
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Department of Psychology, University of Sydney, NSW, Australia. johnp@psych.usyd.edu.au |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Attention Discrimination Learning Humans Mental Recall Motion Perception / physiology* Time Perception / physiology* |
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