PMID: 7545406May 1, 1995Paper

Acetylcholinesterase histochemistry in the macaque thalamus reveals territories selectively connected to frontal, parietal and temporal association cortices

Journal of Chemical Neuroanatomy
C CavadaF Reinoso-Suárez

Abstract

The patterns of histochemical staining for acetylcholinesterase (AChE) activity in the macaque thalamus were analyzed and compared with the distribution of cells and terminals labeled from injections of axonal tracers in the dorsolateral and orbital prefrontal cortex, in area 7a of the posterior parietal cortex and in the polysensory cortex of the superior temporal sulcus. AChE histochemistry is very useful in delineating the thalamic nuclei connected with the association cortex and in uncovering thalamic subdivisions that are barely evident on cytoarchitectonic grounds. Moreover, AChE activity reveals previously unrecognized heterogeneities within several thalamic nuclei, like the ventral anterior (VA), where a new ventromedial subdivision (VAvm) is described, the medial pulvinar (PulM) or the mediodorsal nucleus (MD). In this nucleus three distinct chemical domains are present: the medial, ventral and lateral sectors characterized by low, moderate and high AChE activities, respectively. The staining pattern of the lateral sector is markedly heterogeneous with patches of intense AChE activity surrounded by a moderately stained matrix. The MD medial sector is connected with the orbitofrontal cortex, whereas the AChE-rich patche...Continue Reading

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Citations

Jan 1, 1995·Brain Research Bulletin·M L Rodrigo-Angulo, F Reinoso-Suárez
Jul 17, 1999·Brain Research. Brain Research Reviews·T van GroenJ M Wyss
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Jun 18, 2003·The Journal of Comparative Neurology·Sultan Darvesh, David A Hopkins
May 19, 2021·Cerebral Cortex·Isabel Pérez-SantosCarmen Cavada

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