Perception of Speed, Distance, and TTC of Familiar Objects

It has been shown that knowing the size of an approaching object affects our perception of time to collision (TTC) in a manner similar to the way it affects perception of the physical speed of objects moving in the frontoparallel plane. In this article, we present a series of experiments exploring t...

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Bibliographic Details
Published in:Psychology & Neuroscience 2017-09, Vol.10 (3), p.261-272
Main Authors: Martín, Andrés, Décima, Agustín P, Barraza, Jose F
Format: Article
Language:English
Subjects:
Apparent Size
Distance Perception
Familiarity
Human
Object Recognition
Time
Velocity
Visual Perception
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Summary:It has been shown that knowing the size of an approaching object affects our perception of time to collision (TTC) in a manner similar to the way it affects perception of the physical speed of objects moving in the frontoparallel plane. In this article, we present a series of experiments exploring the effect of object familiarity on the perception of speed and distance in the context of motion in depth (MID), and the interplay among these variables in the perception of TTC. Results of the first experiment show that object familiarity does not help human observers to discriminate the speed of MID. In the second experiment, we show that familiar size may be used to infer the relative distance among objects, in the context of MID, but not to make accurate estimations. Finally, we show that the relative TTCs do not follow the perceived relative distances obtained in the second experiment.
ISSN:1984-3054
1983-3288
DOI:10.1037/pne0000100