Document Detail


Comparison is not just subtraction: effects of time- and space-order on subjective stimulus difference.
MedLine Citation:
PMID:  14674641     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In five experiments, participants made comparative judgments of paired successive or simultaneous stimuli. Time- or space-order errors were obtained, which varied with the interstimulus interval (ISI) or stimulus duration, as well as with the stimulus level. The results, in terms of scaled subjective differences, are well described by Hellström's (1979) sensation-weighting model. With successive presentation, in comparisons of line length and tone loudness, the first stimulus had the greater weight in determining the subjective difference for short ISIs, the second for longer ISIs. In comparisons of duration (auditory and visual), the second stimulus had the greater weight. For simultaneously presented line lengths, the left stimulus had the greater weight.
Authors:
Ake Hellström
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Perception & psychophysics     Volume:  65     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-12-16     Completed Date:  2004-02-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1161-77     Citation Subset:  IM    
Affiliation:
Department of Psychology, Stockholm University, Stockholm, Sweden. hellst@psychology.su.se
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MeSH Terms
Descriptor/Qualifier:
Adult
Attention
Color Perception
Discrimination Learning
Female
Humans
Judgment
Loudness Perception*
Male
Middle Aged
Pattern Recognition, Visual*
Pitch Perception*
Psychomotor Performance
Psychophysics
Size Perception*
Space Perception*
Time Perception*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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