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The orientation specificity of two visual after‐effects
Open accessAbstract
1. Inspection of a high‐contrast adapting grating produces two visual after‐effects: (a) the contrast threshold is raised for test gratings of similar spatial frequency to that of the adapting pattern and (b) the apparent spatial frequency of test gratings shifts away from that of the adapting grating—higher frequencies seem higher and lower ones lower than they really are. 2. Both after‐effects are orientation‐specific. A horizontal adapting grating influences neither the threshold nor the apparent spatial frequency of vertical test gratings. 3. The magnitude of the two after‐effects was measured with vertical test gratings as a function of (a) tilt of a high‐contrast adapting grating and (b) contrast of a vertical adapting grating. 4. At all frequencies of the test grating, the decline of both after‐effects produced by an increase in tilt of approximately 6¾° could be matched by a reduction in contrast by a factor of 2. 5. We take this as evidence for a common neural origin for these two visual phenomena.
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Cites
Receptive fields, binocular interaction and functional architecture in the cat’s visual cortex
Hubel, D. H., & Wiesel, T. N. (1962) · The Journal of Physiology · doi:10.1113/jphysiol.1962.sp006837 · Cited by 13,680
Receptive fields and trigger features of ganglion cells in the visual streak of the rabbit's retina
Levick, W. R. (1967) · The Journal of Physiology · doi:10.1113/jphysiol.1967.sp008140 · Cited by 384
Cited by
Two-dimensional spectral analysis of cortical receptive field profiles
Daugman, J. G. (1980) · Vision Research · doi:10.1016/0042-6989(80)90065-6 · Cited by 1,208
Single units and conscious vision
The American Association for Research into Nervous and Mental Diseases, & Logothetis, N. K. (1998) · Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences · doi:10.1098/rstb.1998.0333 · Cited by 375
Visual sensitivity underlying changes in visual consciousness
Alais, D., Cass, J., O'Shea, R. P., & Blake, R. (2010) · Current Biology · doi:10.1016/j.cub.2010.06.015 · Cited by 166
Broader visual orientation tuning in patients with schizophrenia
Rokem, A., Yoon, J. H., Ooms, R. E., Maddock, R. J., Minzenberg, M. J., & Silver, M. A. (2011) · Frontiers in Human Neuroscience · doi:10.3389/fnhum.2011.00127 · Cited by 50
Metadata
- Authors
- Blakemore, C., & Nachmias, J.
- Venue
- The Journal of Physiology
- Publisher
- Wiley
- Published
- 1971-02
- Volume
- 213
- Issue
- 1
- Pages
- 157-174
- ISSN
- 0022-3751 (ISSN-L)
- 1469-7793
- OpenAlex
- W2137701243
- Cited by
- 260
- References
- 2
- FWCI
- 12.39
- Type
- journal article
- Language
- en
- Open access
- green
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