Search Results - "Olzak, L."

Neural recoding in human pattern vision: model and mechanisms by Olzak, Lynn A., Thomas, James P.

“…We describe a model of neural recoding in spatial vision that specifies how the outputs of selected units akin to V1 cells are normalized and combined to…”
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Multiple gain control processes in contrast–contrast phenomena by Olzak, Lynn A, Laurinen, Pentti I

“…Spatial interactions among orientation-tuned gain control processes are presumed to mediate center-surround contrast–contrast phenomena. In this paper, we…”
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Perceptual learning transfer between first- and second-order fine orientation discriminations by Gong, M., Olzak, L.

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Does perceptual learning transfer between 1st and 2nd order mechanisms that mediate fine orientation discriminations? by Olzak, L., Gong, M.

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Masking, crowding or something else? by Olzak, L., Gong, M.

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Orientation Discrimination in Periphery: Surround Suppression or Crowding? by Gong, M., Olzak, L.

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Configural effects constrain Fourier models of pattern discrimination by Olzak, L A, Thomas, J P

“…Many models of spatial pattern discrimination assume that judgments are based on information directly available from mechanisms tuned to limited ranges of…”
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Bandwidths of gain control pools in overlaid and center-surround masking by Olzak, L., Hibbeler, P.

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Psychophysically defined gain control pool and summing circuit bandwidths for orientation selective pathways by Hibbeler, P., Olzak, L.

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How do second-order mechanisms interact? by Olzak, L., Kramer, M.

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The absence of a collinearity effect in second-order, contrast-modulation discrimination tasks by Kramer, M., Olzak, L.

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Cross-orientation interactions in second-order mechanisms by Olzak, L., Kramer, M.

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The effects of collinearity on contrast discrimination tasks by Kramer, M., Olzak, L.

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When orthogonal orientations are not processed independently by Olzak, L A, Thomas, J P

“…We studied the extent to which two gratings, superimposed at orthogonal orientations, are processed independently in making spatial frequency discriminations…”
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Contrast gain control alone is not enough in mid-level discrimination tasks by Olzak, L., Wagge, J., Thomas, R.

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Spatial phase sensitivity of mechanisms mediating discrimination of small orientation differences by Thomas, J P, Olzak, L A

“…Experiments with spatially superimposed gratings have defined mechanisms that sum signals across spatial frequency bands while mediating discriminations of…”
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Contrast gain control and fine spatial discriminations by Thomas, J P, Olzak, L A

“…The effect of contrast gain control mechanisms on discrimination between highly similar simple and complex stimuli is examined, with a focus on how…”
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A systematic look at the relationship between texture segregation and center-surround masking by Braun, J., Hibbeler, P., Olzak, L.

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Influence of real and illusory contours on center-surround masking by Hibbeler, P. J., Olzak, L. A.

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Uncertainty experiments support the roles of second-order mechanisms in spatial frequency and orientation discriminations by Thomas, J P, Olzak, L A

“…Previous studies of spatial frequency and orientation discrimination [Vision Res. 32, 1885 (1992)] suggest the existence of two second-order cortical…”
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