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Science 19 March 1982:
Vol. 215. no. 4539, pp. 1532 - 1534
DOI: 10.1126/science.7063863
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Articles

Science, Vol 215, Issue 4539, 1532-1534
Copyright © 1982 by American Association for the Advancement of Science

articles

Widespread periodic intrinsic connections in the tree shrew visual cortex

KS Rockland and JS Lund

Intrinsic connections within the tree shrew (Tupaia glis) visual cortex (area 17) are organized in periodic stripelike patterns within layers I, II, and III. This anatomical network resembles the regularly organized stripes of 2-deoxyglucose accumulation seen after stimulation of alert animals with uniformly oriented lines. Such connections imply that widespread lateral interactions are superimposed on the retinotopic organization of area 17 and suggest alternative interpretations of cortical columns.


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