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PubMed · 1304097

Ambiguous motion in a two-frame sequence.

M J Morgan·R Cleary
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Abstract

We measured the ability of ten different observers to identify the direction of motion displacement of a 1.77 c/deg grating in a two-frame sequence. One subject showed virtually errorless performance, in agreement with Derrington and Cox [(1992) Vision Research, 32, 2191-2193], but most subjects found the task difficult and made many errors. One subject saw motion in the reverse of the actual direction of displacement. We conclude that the two-frame sequence contains motion signals in both directions, and that selective attention to the forward direction is necessary for errorless performance.

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AttentionHumansMotion PerceptionPsychomotor PerformanceLetterResearch Support, Non-U.S. Gov't

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M J Morgan, R Cleary. 1992. Ambiguous motion in a two-frame sequence.. https://doi.org/10.1016/0042-6989(92)90081-s

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