In cats, 131 area 18 units with receptive fields 10-50 degrees from the visual axis, were recorded and tested with moving stimuli. These stimuli included light slits, dark bars, single edges, gratings and a random square pattern. 94% of the units were responsive to visual motion. 106 neurones could
Hypercomplex cell types in area 18 of the cat
β Scribed by R. M. Camarda
- Publisher
- Springer-Verlag
- Year
- 1979
- Tongue
- English
- Weight
- 231 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0014-4819
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β¦ Synopsis
Single unit recording has revealed the same orientation sensitive cell classes in cat area 18 as are to be found in area 17. These include particularly the various types of hypercomplex cell belonging to the S, C, and B cell families.
π SIMILAR VOLUMES
Sharpness and symmetry of orientation tuning were quantitatively investigated and compared in ninety-seven cells from areas 17 and 18 of the lightly-anaesthetised feline visual cortex. Halfwidths of orientation tuning at half-height ranged between 5 degrees and 73 degrees for long stimuli, with an e
In cats, 107 area 18 neurones with identified FR type, 10-50 degrees from the visual axis, were tested for the influence of direction, velocity and amplitude of movement. These three parameters are believed to be the primary parameters of a movement analysing system. 94% of the neurones were influen