Autoradiographic deoxyglucose study of visually activated extrastriate cortex in the primate: three-dimensional...

Activation of the visual system with a moving black and white geometric pattern resulted in dense patches or columns of 2-deoxyglucose label in primate extrastriate visual cortex. The three-dimensional reconstruction of these metabolic columns showed that they were arranged in irregularly shaped slabs which extended in an essentially rostrocaudal plane. The slabs tended to merge with one another and to subdivide throughout their course in the extrastriate visual cortex.