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November 1941

TOPICAL ARRANGEMENT WITHIN THE SPINOTHALAMIC TRACT OF THE MONKEY

Author Affiliations

CINCINNATI; CHICAGO

From the Division of Neurological Surgery, University of Chicago.

Arch NeurPsych. 1941;46(5):877-883. doi:10.1001/archneurpsyc.1941.02280230119008
Abstract

It was Spiller1 who first observed that painful and thermal sensations are carried within the anterolateral columns of the spinal cord and that surgical section of the anterolateral part of the cord will result in contralateral analgesia and thermanesthesia below the lesion. From surgical experiences gained as a result of the application of this remarkable observation Foerster and Gagel,2 Hyndman and Van Epps3 and Walker4 have amplified Spiller's observations and have suggested that the fibers from different levels of the spinal cord are segmentally organized within the anterolateral columns and within the brain stem. The present study was undertaken to determine the topical arrangement of the fibers within the spinothalamic tract in the monkey.

METHOD OF STUDY  Using anesthesia induced by pentobarbital sodium and aseptic technic, unilateral anterolateral chordotomies were made in 6 Macacus rhesus monkeys at different levels of the spinal cord, from the upper

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