Selective adaptation orientation tuning now present a

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A. Selective Adaptation: Orientation tuning Now present a vertical bar again. Population firing will be skewed towards non- fatigued neurons. Results in perception of tilt aftereffect Preferred orientation of cell A. Selective Adaptation: Orientation B. Selective Adaptation: Contrast sensitivity A vertical grating modulated by contrast and by spatial frequency. Visible spatial frequencies depend on contrast. B. Selective Adaptation: The contrast sensitivity function
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4/15/2013 4 B. Selective Adaptation: Contrast sensitivity The contrast sensitivity function is determined by the sensitivity of spatial frequency tuned neurons to different contrast levels. V1 neurons are these spatial frequency filters. B. Selective Adaptation: Contrast sensitivity Gratings of higher contrast drive neurons with that orientation selectivity more. Contrast sensitivity is a different measurement of how well we see than acuity. How well you can tell two things that are similar in color/brightness apart Method for Selective Adaptation B. Selective Adaptation: Contrast sensitivity
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