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ERIC Number: EJ945671
Record Type: Journal
Publication Date: 2011-Oct
Pages: 5
Abstractor: As Provided
Reference Count: 25
ISSN: ISSN-0096-1523
Spatial Grouping Resolves Ambiguity to Drive Temporal Recalibration
Yarrow, Kielan; Roseboom, Warrick; Arnold, Derek H.
Journal of Experimental Psychology: Human Perception and Performance, v37 n5 p1657-1661 Oct 2011
Cross-modal temporal recalibration describes a shift in the point of subjective simultaneity (PSS) between 2 events following repeated exposure to asynchronous cross-modal inputs--the adaptors. Previous research suggested that audiovisual recalibration is insensitive to the spatial relationship between the adaptors. Here we show that audiovisual recalibration can be driven by cross-modal spatial grouping. Twelve participants adapted to alternating trains of lights and tones. Spatial position was manipulated, with alternating sequences of a light then a tone, or a tone then a light, presented on either side of fixation (e.g., left tone--left light--right tone--right light, etc.). As the events were evenly spaced in time, in the absence of spatial-based grouping it would be unclear if tones were leading or lagging lights. However, any grouping of spatially colocalized cross-modal events would result in an unambiguous sense of temporal order. We found that adapting to these stimuli caused the PSS between subsequent lights and tones to shift toward the temporal relationship implied by spatial-based grouping. These data therefore show that temporal recalibration is facilitated by spatial grouping. (Contains 1 table, 2 figures and 2 footnotes.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A