Article Text

Download PDFPDF

The contingent negative variation and the excitability of the spinal monosynaptic reflex
  1. D. Papakostopoulos1,
  2. Ray Cooper
  1. Burden Neurological Institute, Bristol


    A method is described which permits simultaneous measurement of changes in slow electroencephalographic potentials (Contingent Negative Variation—CNV) and the excitability of the spinal monosynaptic arc (H reflex) during the foreperiod of a simple reaction time experiment. Data from 11 normal subjects show that during the development of the CNV there is an augmentation of the amplitude of the H-reflex. It is suggested that the two phenomena are controlled by a common subcortical structure.

    Statistics from


    • 1 Supported by a grant from the Wellcome Trust.

    Request Permissions

    If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.