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March 1934

The Main Afferent Fiber Systems of the Cerebral Cortex in Primates: An Investigation of the Central Portions of the Somato-Sensory, Auditory and Visual Paths of the Cerebral Cortex, with Consideration of Their Normal and Pathological Function, Based on Experiments with Monkeys. By Stephen Poliak, M.D., Associate Professor of Neurology, University of Chicago. University of California Publications in Anatomy, Volume 2. Price, $10. Pp. xiv and 370, with 96 figures in text. Berkeley, Calif.: Univ. California Press, 1932.

Arch NeurPsych. 1934;31(3):635-651. doi:10.1001/archneurpsyc.1934.02250030175013

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This fine monograph is really a preliminary, and a necessary, one to a study of the comparatively little known association connections of various cortical areas as determined by cyto-architectural and myelo-architectural investigations. Obviously an accurate knowledge of the afferent projection systems is a necessary basis for an anatomic study of the association systems by which impulses received by the cortex are, so to speak, spread to other cortical regions or mechanisms. As the author points out, such knowledge has not been attained as yet. The two principal problems in attaining such knowledge are, first: disclosing the anatomic identity of functionally distinct afferent paths from their peripheral receptor organs to their cortical terminations and, second, establishing the internal organization of the afferent paths. Only after these problems have found a satisfactory solution can an attack be made on the following question: By what paths and mechanisms are the impulses streaming into