HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Buy All Versions of this Article: 101/6/2738    most recent 00141.2009v1 Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Tan, C. O. Search for Related Content PubMed PubMed Citation Articles by Tan, C. O.

NEURO FORUM

Anticipatory Changes in Regional Cerebral Hemodynamics: A New Role for Dopamine?

Department of Physical Medicine and Rehabilitation, Harvard Medical School, and Cardiovascular Research Laboratory, Spaulding Rehabilitation Hospital, Boston, Massachusetts

ABSTRACT

Recently, adaptively timed, anticipatory changes in hemodynamic responses, independent of neural activity, were described in primate primary visual cortex. Task-related properties of these responses point to a possible link between regional cerebral microcirculation and dopaminergic signaling. In this report, this link is elaborated on the basis of known physiological data and further experiments are proposed to test the possible role of dopamine in task-dependent, "on-demand" allocation of metabolic resources.