1985 volume 14(2) pages 181 – 192
doi:10.1068/p140181

Cite as:
Baker C L Jr, Braddick O J, 1985, "Temporal properties of the short-range process in apparent motion" Perception 14(2) 181 – 192
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Temporal properties of the short-range process in apparent motion

Curtis L Baker Jr, Oliver J Braddick

Received 6 December 1983, in revised form 28 May 1984

Abstract. A study is reported of the perception of random-dot two-frame apparent motion in which the durations of each exposure and the intcrstimulus interval between them were varied. The results arc largely consistent with the rule that, for optimal motion detection, a portion of each exposure must fall within the same time interval of about 40 ms. In addition, motion perception is separably dependent on the displacement from one exposure to the next and on the time interval between those exposures, rather than on the 'velocity' implied by their ratio.

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