September 2017
Volume 17, Issue 10
Open Access
Vision Sciences Society Annual Meeting Abstract  |   August 2017
How the perceived duration depends upon the target detection in attentional blink display.
Author Affiliations
  • Makoto Ichikawa
    Faculty of Letters, Chiba University
  • Masataka Miyoshi
    Graduate School of Humanities and Social Sciences, Chiba University
Journal of Vision August 2017, Vol.17, 1194. doi:10.1167/17.10.1194
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      Makoto Ichikawa, Masataka Miyoshi; How the perceived duration depends upon the target detection in attentional blink display.. Journal of Vision 2017;17(10):1194. doi: 10.1167/17.10.1194.

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      © ARVO (1962-2015); The Authors (2016-present)

  • Supplements

It has been known that the perceived duration for a given period decreased with the decrement of number of perceived events during the period. We examined whether failure to detect targets in RSVP (Rapid Serial Visual Presentation) display, which indicate the reduction of perceived frames, causes the reduction of perceived duration by the use of attentional blink paradigm. In each trial, two series of RSVP display were presented one after another at the center of CRT; in each of the RSVP display, two black numerals (1.47 x 1.47 deg) were presented as targets on gray background within a series of black uppercase alphabets. The length of each RSVP display ranged from 17 to 20 frames. Each frame was presented for 70 ms with 23 ms of inter stimuli interval. The lag between the two targets was 1, 2, or 3 frames in one of the RSVP display while the lag between the two targets in the other series was 7, 8, or 9 frames. Ten female and eight male university students took part in this experiment. They were asked to identify the targets for each of the RSVP display, and to report which of the two RSVP displays were perceived as longer. Each participant had 160 trials. We found that the perceived duration for the RSVP display was reduced when participants failed to detect the second target although it was constant when they failed to detect the first target. These results suggest that the way to determine the perceived duration depends upon which target is missed. That is, when the second target is missed (that is, when the attentional blink is observed), the perceived duration varies with the number of perceived frames, while, when the first target is missed, the duration for the missed target is perceptually completed.

Meeting abstract presented at VSS 2017


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