Shape and color in apparent motion
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The perceptual timescape: Perceptual history on the sub-second scale
2024, Cognitive PsychologyPerception in real-time: predicting the present, reconstructing the past
2022, Trends in Cognitive SciencesCitation Excerpt :Conversely, cuing attention to the location of a subthreshold stimulus even after its disappearance can cause the stimulus to be perceived [12]. In the Colour Phi phenomenon (Figure 1D) [13], two differently coloured discs are presented in different positions shortly after one another. This sequence is perceived as a single disc moving smoothly from the first to the second position, changing colour midway.
Resolving visual motion through perceptual gaps
2021, Trends in Cognitive SciencesCitation Excerpt :While there are some differences in the conscious experience of motion induced by apparent motion and perceptual gaps, the maintenance of internally generated motion signals may rely on similar processes in the two cases. Motion perception in apparent motion closely resembles the perception of physical motion, suggesting that we actually perceive a stimulus moving along an illusory motion trajectory [30]. The experience of such apparent motion is so strong and spatiotemporally specific that it can interfere with the detection of another object along the illusory motion trajectory [31–33].
Dimensions of Animal Consciousness
2020, Trends in Cognitive SciencesCitation Excerpt :One possibility is to look for mechanisms that edit sensory input to produce a coherent, continuous stream from discontinuous stimuli. In humans, evidence for such mechanisms comes from the colour-phi illusion, in which two spatially separated, differently coloured dots flashed in sequence are perceived as a single moving dot that changes colour half-way across the gap [49]. The brain is not simply mistaking two static stimuli for a moving stimulus: it is constructing a coherent account of how the stimulus is changing.
This work was supported by Grant A 7655 from the National Research Council of Canada; the second author was supported by a pre-doctoral fellowship from NRC. A preliminary report of these results has been published (Kolers and von Grünau, 1975). They were first presented to the annual meeting of ARVO, April 1974.