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| Research article summary (published 29 Apr 2003): |
Combined perceptual or motor-related expectancies modulated by type of cue.
Full Abstract
The interaction of two expectancies was examined. These were either two perceptual or two response-related expectancies. Perceptual expectancies were induced by combining spatial cuing with feature cuing on a trial-by-trial basis. Cues consisted either of two integrated parts, such as two arrows, or two separated pieces, such as an arrow and a word. Spatial-cuing effects were reduced on trials with invalid feature cues, as compared with valid ones. However, the interaction of spatial cuing and feature cuing was modulated by the type of cue used to induce expectancies. With integrated cues, spatial-cuing effects were reduced about twice as much as with separated cues. The same effect of type of cue was found in Experiment 2, although finger cuing was combined with hand cuing. With integrated cues, finger-cuing effects were much smaller on trials with invalid hand cues, as compared with valid ones. With separated cues, however, finger-cuing effects were additive to hand-cuing effects. The similarity of the results within perceptual- and motor-cuing tasks suggests that a general principle governs the combination of expectancies, such as that outlined in the framework of the proposed adjusted expectancy model.
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Author information
Author/s: Mattler, Uwe (U);
Affiliation: Technische Universität Braunschweig, Braunschweig, Germany. uwe.mattler(-atsign-)nat.uni-magdeburg.de
Journal and publication information
Publication Type: Journal Article
Journal: Perception & psychophysics (Percept Psychophys), published in United States. (Language: eng)
Reference: 2003-May; vol 65 (issue 4) : pp 649-66
Dates: Created 2003/06/18; Completed 2003/07/28; Revised 2004/11/17;
PMID: 12812285, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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