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Ryota Kanai, Thomas A. Carlson, Frans A. J. Verstraten, Vincent Walsh; Perceived timing of new objects and feature changes. Journal of Vision 2009;9(7):5. doi: https://doi.org/10.1167/9.7.5.
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© ARVO (1962-2015); The Authors (2016-present)
Recent psychophysical studies have shown that perceived timings of events can be dissociated from their physical temporal relationship. In the flash-lag effect (FLE), a flash presented at the same spatiotemporal position as a continuously moving stimulus is perceived to lag behind the moving stimulus. In the present study, we report a peculiar condition in which FLE does not occur even when the position of a moving object is estimated at the moment of a transient event. In a series of experiments, we compared perceived timings and processing delays for appearance of a new object against feature changes of an existing object. We found that perceived timing of the appearance of a new object is delayed compared to the perception of feature changes updating the properties of an object. Our results suggest the construction of a new object representation requires additional time to establish a stable neuronal representation.
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