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    Perceived time is spatial frequency dependent

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    Heron_Vision_Research.pdf (387.4Kb)
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    Publication date
    2011-06-01
    Author
    Aaen-Stockdale, Craig
    Hotchkiss, John
    Heron, James
    Whitaker, David J.
    Keyword
    Time perception
    Spatial frequency
    Duration
    Oddball
    Subjective time
    Rights
    (c) 2011 Elsevier Ltd. Open access under CC BY license.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    We investigated whether changes in low-level image characteristics, in this case spatial frequency, were capable of generating a well-known expansion in the perceived duration of an infrequent “oddball” stimulus relative to a repeatedly-presented “standard” stimulus. Our standard and oddball stimuli were Gabor patches that differed from each other in spatial frequency by two octaves. All stimuli were equated for visibility. Rather than the expected “subjective time expansion” found in previous studies, we obtained an equal and opposite expansion or contraction of perceived time dependent upon the spatial frequency relationship of the standard and oddball stimulus. Subsequent experiments using equi-visible stimuli reveal that mid-range spatial frequencies (ca. 2 c/deg) are consistently perceived as having longer durations than low (0.5 c/deg) or high (8 c/deg) spatial frequencies, despite having the same physical duration. Rather than forming a fixed proportion of baseline duration, this bias is constant in additive terms and implicates systematic variations in visual persistence across spatial frequency. Our results have implications for the widely cited finding that auditory stimuli are judged to be longer in duration than visual stimuli.
    URI
    http://hdl.handle.net/10454/17111
    Version
    Published version
    Citation
    Aaen-Stockdale C, Hotchkiss J, Heron J et al (2011) Perceived time is spatial frequency dependent. Vision Research. 51(11): 1232-1238.
    Link to publisher’s version
    https://doi.org/10.1016/j.visres.2011.03.019
    Type
    Article
    Collections
    Life Sciences Publications

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