Computational neurobiology of the flash-lag effect.
In the flash-lag effect (FLE) a moving object is perceived ahead of a stationary stimulus flashed in spatial alignment. Several explanations have been proposed to account for the FLE and its dependence on a variety of psychophysical attributes. Here, we show that a simple feed-forward network reproduces the standard FLE and several related manifestations, such as its modulation by stimulus luminance, trajectory, priming, and spatial predictability. A minimal set of elements, based on plausible neuronal mechanisms, yields a unified account of these visual illusions and possibly other perceptual phenomena.
Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP 05508-900, Brazil. baldo@icb.usp.br
Marcus V C
MV
Baldo
Nestor
N
Caticha
D006801:Humans; D008959:Models, Neurological; D008960:Models, Psychological; D009039:Motion Perception / Q000502:physiology*; D009903:Optical Illusions; D010775:Photic Stimulation; D011601:Psychophysics; D013028:Space Perception / Q000502:physiology*