On inhibition between spatial frequency channels: Adaptation to complex gratings

Klein, Stanley A.; Stromeyer, C.F.

doi:10.1016/0042-6989(80)90037-1

Cited by 38 publications

(16 citation statements)

References 17 publications

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“…3f, 9f) was less than that elicited by sequential adaptation. Tolhurst (1972) and Nachmias et al (1973) found that adaptation to squarewave gratings caused less effect at the component frequencies than that caused by sinewave adaptation to those frequencies, and Stromeyer and Klein (1974) and Klein and Stromeyer (1980) report that the decreased effect could be the result of inhibition between edge (asymmetric) and line (symmetric) mechanisms. These findings and those reported in the present paper seem to suggest that local aspects of the luminance profile (edges) are important in adaptation.…”

Section: Discussionmentioning

confidence: 99%

Higher-harmonic adaptation and the detection of squarewave gratings

Greenlee¹,

Magnussen²

1987

Vision Research

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Abstract-Adaptation to a high contrast sinewave grating of 1 cldeg spatial frequency causes a large increase in the contrast threshold for a 1 c/deg test grating, but fails to raise the threshold for a squarewave grating of 0.33 c/deg, although the sensitivity of the "channel" tuned to both the third and fifth harmonic components of the squarewave test grating should be thoroughly suppressed. Following sequential adaptation to sinewave gratings of 1 and 3 c/deg spatial frquency, detection of squarewave gratings at 0.33 c/deg likewise remains unaffected. In contrast, after adaptation to a 0.33 c/deg squarewave grating with missing fundamental the contrast threshold for a squarewave test grating of the same frequency is increased by 0.25 log unit, although the higher harmonic component frequencies are less affected than by sequential sinewave adaptation. The resufts suggest that independent spatial frequency channeh detecting harmonic components are not alone sufbcient to account for the visibility of low frequency squarewaves.

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Section: Discussionmentioning

confidence: 99%

Higher-harmonic adaptation and the detection of squarewave gratings

Greenlee¹,

Magnussen²

1987

Vision Research

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“…at a high curvature boundary, smaller scales can better track the boundary and cooperate with each other, whereas larger scales generate a spatially scattered response and suppress each other through spatial competition. See Griffiths and Chubb ( 1993), Klein and Stromeyer ( 1980), Quinn ( 1985), Sagi and Hochstein ( 1984), and Wilson and Richards (1989) and cortical neurophysiology (Lennie, 1984;Livingstone &Ru-bel, 1984, are proposed to carry out the capture property. These double-opponent cells occur, moreover, at the monocular FIDOs, whose surface representations are amodal (viz., not visible).…”

Section: Filling-in Of Monocular Surface Representationsmentioning

confidence: 99%

Cortical dynamics of three-dimensional figure–ground perception of two-dimensional pictures.

Grossberg¹

1997

Psychological Review

189

254

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This article develops the FACADE theory of 3-dimensional (3-D) vision and figure-ground separation to explain data concerning how 2-dimensional pictures give rise to 3-D percepts of occluding and occluded objects. The model describes how geometrical and contrastive properties of a picture can either cooperate or compete when fonning the boundaries and surface representations that subserve conscious percepts. Spatially long-range cooperation and spatially short-range competition work together to separate the boundaries of occluding figures from their occluded neighbors. This boundary ownership process is sensitive to image T junctions at which occluded figures contact occluding figures. These boundaries control the filling-in of color within multiple depth-sensitive surface representations. Feedback between surface and boundary representations strengthens consistent boundaries while inhibiting inconsistent ones. Both the boundary and the surface representations of occluded objects may be amodally completed, while the surface representations of unoccluded objects become visible through modal completion. Functional roles for conscious modal and amodal representations in object recognition, spatial attention, and reaching behaviors are discussed. Model interactions are interpreted in tenns of visual, temporal, and parietal cortices.

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“…First, the test and first adaptor, had a spatial frequency of 7.5 c/deg, almost an octave above our 4 c/deg standard test grating. Second, as Klein and Stromeyer (1980) were interested in the interactions between harmonically related frequencies (of a squarewave) they used adapting contrasts that differed by a factor of three, 639/o for 2.5 c/deg and 21% for 7.5 cideg, whereas we used an adapting contrast of 7046 for both fixed and variable adapting gratings. The adaptation effect in their experiment was fairly small (about 0.2 log unit) owning to the low adapting contrast at the 7.5 c/deg frequency.…”

Section: Discussionmentioning

confidence: 99%

“…For example, the weak effect of a squarewave adapting grating on the third harmonic frequency (Tolhurst, 1972;Nachmias et al, 1973) could be due to the fact that the edges of the squarewave grating may be less effective in adapting mechanisms which would normally respond to one or more harmonic frequencies of the squarewave Magnussen, 1987, 1988;von der Heydt rf ai., 1986;von der Heydt, 1987). Klein and Stromeyer (1980) have shown that the first and third harmonics of a squarewave can be effective adaptors. if they are "separately visible" during adaptation.…”

Section: Introductionmentioning

confidence: 99%

Interactions among spatial frequency and orientation channels adapted concurrently

Greenlee

Magnussen

1988

Vision Research

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Abstract-Interactionsbetween size and orientation-specific mechanisms in the human visual system were investigated using a sequential adaptation technique. Subjects adapted to a vertical, 4 c/deg high-contrast (0.7) sinewave grating that was interleaved at a rate of 0.5 Hz with another adapting grating differing either in (I) spatial frequency or (2) orientation.Before and after adaptation contrast thresholds were measured for a vertical 4 c/deg sinewave test grating. The resultant elevation in contrast threshold was plotted as a function of the (I) spatial frequency or (2) orientation differences between the first and second adapting gratings. Maximum threshold elevation was found when both adapting gratings shared the same spatial frequency and orientation.Minimum elevations were found when the second grating's spatial frequency or orientation differed by approx.

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On inhibition between spatial frequency channels: Adaptation to complex gratings

Cited by 38 publications

References 17 publications

Higher-harmonic adaptation and the detection of squarewave gratings

Higher-harmonic adaptation and the detection of squarewave gratings

Cortical dynamics of three-dimensional figure–ground perception of two-dimensional pictures.

Interactions among spatial frequency and orientation channels adapted concurrently

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