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Apparent time interval of visual stimuli is compressed during fast hand movement.

Yokosaka T, Kuroki S, Nishida S, Watanabe J - PLoS ONE (2015)

Bottom Line: The results show that hand movements, at least the fast ones, reduced the apparent time interval between visual events.A control experiment indicated that the apparent time compression was not produced by the participants' involuntary eye movements during the hand movements.These results, together with earlier findings, suggest hand movement can change apparent visual time either in a compressive way or in an expansive way, depending on the relative timing between the hand movement and visual stimulus.

View Article: PubMed Central - PubMed

Affiliation: NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation, Kanagawa, Japan.

ABSTRACT
The influence of body movements on visual time perception is receiving increased attention. Past studies showed apparent expansion of visual time before and after the execution of hand movements and apparent compression of visual time during the execution of eye movements. Here we examined whether the estimation of sub-second time intervals between visual events is expanded, compressed, or unaffected during the execution of hand movements. The results show that hand movements, at least the fast ones, reduced the apparent time interval between visual events. A control experiment indicated that the apparent time compression was not produced by the participants' involuntary eye movements during the hand movements. These results, together with earlier findings, suggest hand movement can change apparent visual time either in a compressive way or in an expansive way, depending on the relative timing between the hand movement and visual stimulus.

No MeSH data available.


Psychometric functions for the four conditions obtained for participant T. Y.Filled circles and solid lines show the raw data and fitted psychometric curves, respectively.
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pone.0124901.g002: Psychometric functions for the four conditions obtained for participant T. Y.Filled circles and solid lines show the raw data and fitted psychometric curves, respectively.

Mentions: Using the method of constant stimuli, we estimated the apparent test interval from the point of subjective equality (PSE; the 50% point of the cumulative logistic distribution function fitted to the psychometric function by the maximum likelihood method) and the precision of judgments from the just-noticeable difference (JND; the difference between the estimated 50% and 75% points). Examples of psychometric functions for the four conditions obtained for one participant are shown in Fig 2.


Apparent time interval of visual stimuli is compressed during fast hand movement.

Yokosaka T, Kuroki S, Nishida S, Watanabe J - PLoS ONE (2015)

Psychometric functions for the four conditions obtained for participant T. Y.Filled circles and solid lines show the raw data and fitted psychometric curves, respectively.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4390366&req=5

pone.0124901.g002: Psychometric functions for the four conditions obtained for participant T. Y.Filled circles and solid lines show the raw data and fitted psychometric curves, respectively.
Mentions: Using the method of constant stimuli, we estimated the apparent test interval from the point of subjective equality (PSE; the 50% point of the cumulative logistic distribution function fitted to the psychometric function by the maximum likelihood method) and the precision of judgments from the just-noticeable difference (JND; the difference between the estimated 50% and 75% points). Examples of psychometric functions for the four conditions obtained for one participant are shown in Fig 2.

Bottom Line: The results show that hand movements, at least the fast ones, reduced the apparent time interval between visual events.A control experiment indicated that the apparent time compression was not produced by the participants' involuntary eye movements during the hand movements.These results, together with earlier findings, suggest hand movement can change apparent visual time either in a compressive way or in an expansive way, depending on the relative timing between the hand movement and visual stimulus.

View Article: PubMed Central - PubMed

Affiliation: NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation, Kanagawa, Japan.

ABSTRACT
The influence of body movements on visual time perception is receiving increased attention. Past studies showed apparent expansion of visual time before and after the execution of hand movements and apparent compression of visual time during the execution of eye movements. Here we examined whether the estimation of sub-second time intervals between visual events is expanded, compressed, or unaffected during the execution of hand movements. The results show that hand movements, at least the fast ones, reduced the apparent time interval between visual events. A control experiment indicated that the apparent time compression was not produced by the participants' involuntary eye movements during the hand movements. These results, together with earlier findings, suggest hand movement can change apparent visual time either in a compressive way or in an expansive way, depending on the relative timing between the hand movement and visual stimulus.

No MeSH data available.