Unequal representation of cardinal and oblique contours in ferret visual cortex.
Publication
, Journal Article
Coppola, DM; White, LE; Fitzpatrick, D; Purves, D
Published in: Proc Natl Acad Sci U S A
March 3, 1998
We have measured the amount of cortical space activated by differently oriented gratings in 25 adult ferrets by optical imaging of intrinsic signal. On average, 7% more area of the exposed visual cortex was preferentially activated by vertical and horizontal contours than by contours at oblique angles. This anisotropy may reflect the real-world prevalence of contours in the cardinal axes and could explain the greater sensitivity of many animals to vertical and horizontal stimuli.
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Published In
Proc Natl Acad Sci U S A
DOI
ISSN
0027-8424
Publication Date
March 3, 1998
Volume
95
Issue
5
Start / End Page
2621 / 2623
Location
United States
Related Subject Headings
- Visual Perception
- Visual Cortex
- Photic Stimulation
- Orientation
- Ferrets
- Brain Mapping
- Animals
Citation
APA
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Coppola, D. M., White, L. E., Fitzpatrick, D., & Purves, D. (1998). Unequal representation of cardinal and oblique contours in ferret visual cortex. Proc Natl Acad Sci U S A, 95(5), 2621–2623. https://doi.org/10.1073/pnas.95.5.2621
Coppola, D. M., L. E. White, D. Fitzpatrick, and D. Purves. “Unequal representation of cardinal and oblique contours in ferret visual cortex.” Proc Natl Acad Sci U S A 95, no. 5 (March 3, 1998): 2621–23. https://doi.org/10.1073/pnas.95.5.2621.
Coppola DM, White LE, Fitzpatrick D, Purves D. Unequal representation of cardinal and oblique contours in ferret visual cortex. Proc Natl Acad Sci U S A. 1998 Mar 3;95(5):2621–3.
Coppola, D. M., et al. “Unequal representation of cardinal and oblique contours in ferret visual cortex.” Proc Natl Acad Sci U S A, vol. 95, no. 5, Mar. 1998, pp. 2621–23. Pubmed, doi:10.1073/pnas.95.5.2621.
Coppola DM, White LE, Fitzpatrick D, Purves D. Unequal representation of cardinal and oblique contours in ferret visual cortex. Proc Natl Acad Sci U S A. 1998 Mar 3;95(5):2621–2623.
Published In
Proc Natl Acad Sci U S A
DOI
ISSN
0027-8424
Publication Date
March 3, 1998
Volume
95
Issue
5
Start / End Page
2621 / 2623
Location
United States
Related Subject Headings
- Visual Perception
- Visual Cortex
- Photic Stimulation
- Orientation
- Ferrets
- Brain Mapping
- Animals