| Coltheart M. Visual feature-analyzers and after-effects of tilt and curvature. Psychol Rev 1971;78:114 -- 21. |
....appear barely tilted counterclockwise, due to the indirect tilt aftereffect. Adapted from Campbell Maffei, 1971. Assuming the perceived orientation is some sort of average over the orientation preferences of the activated neurons, the final perceived orientation would thus show the direct TAE (Coltheart, 1971). The fatigue theory has been discredited for a number of reasons, chief among which is that individual V1 neurons actually do not appear to fatigue (Finlayson Cynader, 1995; McLean Palmer, 1996) In fact, their response to direct stimulation is essentially unchanged by adaptation to a visual ....
Coltheart, M. (1971). Visual feature-analyzers and aftereffects of tilt and curvature. Psychological Review, 78 (2), 114--121.
....appear barely tilted counterclockwise, due to the indirect tilt aftereffect. Adapted from Campbell Maffei, 1971. Assuming the perceived orientation is some sort of average over the orientation preferences of the activated neurons, the final perceived orientation would thus show the direct TAE (Coltheart, 1971). The fatigue theory has been discredited for a number of reasons, chief among which is that individual V1 neurons actually do not appear to fatigue (Finlayson Cynader, 1995; McLean Palmer, 1996) In fact, their response to direct stimulation is essentially unchanged by adaptation to a visual ....
Coltheart, M. (1971). Visual feature-analyzers and aftereffects of tilt and curvature. Psychological Review, 78 (2), 114--121.
....become fatigued as a result of activation, a different set of neurons will be activated for the test figure. Assuming the perceived orientation is some sort of weighted average over the orientation preferences of the activated neurons, the perceived orientation would thus show the direct TAE (Coltheart 1971). Sutherland (1961) proposed such an explanation originally, and Coltheart (1971) extended it to account for indirect effects. Coltheart noted that some neurons (here called cross neurons) had been discovered that had two preferred orientations, each orthogonal to the other (Hubel and Wiesel 1965, ....
....be activated for the test figure. Assuming the perceived orientation is some sort of weighted average over the orientation preferences of the activated neurons, the perceived orientation would thus show the direct TAE (Coltheart 1971) Sutherland (1961) proposed such an explanation originally, and Coltheart (1971) extended it to account for indirect effects. Coltheart noted that some neurons (here called cross neurons) had been discovered that had two preferred orientations, each orthogonal to the other (Hubel and Wiesel 1965, 1968) While an adaptation figure is being shown, some cross neurons (i.e. ....
[Article contains additional citation context not shown here]
Coltheart, M. (1971). Visual feature-analyzers and aftereffects of tilt and curvature. Psychological Review, 78(2):114--121.
....stimulus parameter away from that of the adaptor. Given these assumptions, the pattern of adaptation induced perceptual shifts should be indicative of tuning of the encoding mechanisms (e.g. Osgood Heyer, 1952; Sutherland, 1961; Pantle, 1968; Blakemore Sutton, 1969; Blakemore et al. 1970; Coltheart, 1971; Georgeson Harris, 1984; Graham, 1989; Ross Speed, 1991; Snowden, 1994) For example, Blakemore et al. 1970) observed that the perceived spatial frequency of a sinusoidal grating is shifted repulsively away from the frequency of an adapting grating, and from this inferred the existence of ....
Coltheart, M. (1971). Visual feature-analyzers and after-effects of tilt and curvature.
....become fatigued over time, the set of neurons activated for a test figure will shift away from the adaptation orientation. Assuming the perceived orientation is some sort of average over the orientation preferences of the activated neurons, the perceived orientation would thus show the direct TAE (Coltheart 1971). The fatigue theory has been discredited because it has become apparent that the adaptation is mediated by the lateral connections between neurons, rather than changes occurring within the neurons themselves (Bednar 1997; Vidyasagar 1990) The now popular inhibition theory postulates that tilt ....
Coltheart, M. (1971). Visual feature-analyzers and aftereffects of tilt and curvature. Psychological Review, 78(2):114--121.
No context found.
Coltheart M. Visual feature-analyzers and after-effects of tilt and curvature. Psychol Rev 1971;78:114 -- 21.
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