Degeneration of caudal medial geniculate body following cortical lesion ventral to auditory area II in the cat
✍ Scribed by Irving T. Diamond; Kao Liang Chow; William D. Neff
- Publisher
- John Wiley and Sons
- Year
- 1958
- Tongue
- English
- Weight
- 722 KB
- Volume
- 109
- Category
- Article
- ISSN
- 0021-9967
No coin nor oath required. For personal study only.
✦ Synopsis
The region of the cat's cortex bounded by the suprasylvian sulci and a line approximately perpendicular to the dorsal tip of the pseudosylvian sulcus has been defined as auditory cortex by electrophysiological techniques (Bremer and DOW, '39; Ades, '41; Woolsey and Walzl, '42; Hind, '53). On the basis of cytoarchitecture as well as the topographic representation of the cochlea, this cortical region has been subdivided into AI, AII, and Ep (Rose, '49; Rose and Woolsey, '49b). A number of experiments provide data on the afferent connections between the thalamus and the AI, AII, Ep areas. Removal of cortex in A1 produces retrograde degeneration in the rostra1 half of the principal division of the medial geniculate body (Rose and Woolsey, '49b ; Neff et al., '56 ; Diamond and Neff, '57). Ablation of A11 or Ep produces no certain degenerative changes in the medial geniculate (Rose and Woolsey, '49b). A cortical ablation which includes AI, AII, and Ep produces degeneration of a more extensive portion of the