A comparison of preparation-related neuronal activity changes in the prefrontal, premotor, primary motor and posterior parietal areas of the monkey cortex: preliminary results.

Full Abstract

Single-unit activity of prefrontal (PF), premotor (PM), primary motor (MI) and posterior parietal (PP) cortical areas was analysed from 3 monkeys trained to perform visually guided arm movements in a between-arms choice reaction time (RT) task. Percentages of preparation-related units, i.e. units whose change in activity during the preparatory period was correlated with RT, were 19% in PF, 31% in MI, 46% in PM and 68% in PP, respectively. These data support the hypothesis that neural pathways connecting PP association areas to MI, via PM, are involved mainly in movement planning.

Author information

Author/s: Requin, J (J); Lecas, J C (JC); Vitton, N (N);

Affiliation: Unit of Cognitive Neurosciences, National Center for Scientific Research, Marseilles, France.

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Neuroscience letters (Neurosci Lett), published in NETHERLANDS. (Language: eng)

Reference: 1990-Mar; vol 111 (issue 1-2) : pp 151-6

Dates: Created 1990/06/14; Completed 1990/06/14; Revised 2006/11/15;

PMID: 2110634, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

External Links for this article
(including full text providers, if available):

Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.

This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.