JN Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Neurophysiol 57: 1925-1936, 1987;
0022-3077/87 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Young, A. A.
Right arrow Articles by Dawson, N. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Young, A. A.
Right arrow Articles by Dawson, N. J.

Journal of Neurophysiology, Vol 57, Issue 6 1925-1936, Copyright © 1987 by APS

ARTICLES

Static and dynamic response characteristics, receptive fields, and interaction with noxious input of midline medullary thermoresponsive neurons in the rat

A. A. Young and N. J. Dawson

Thermal clamping of deep-body temperature and 16 fields covering the total truncal skin surface enabled characterization of thermal transmission neurons distributed in a midline medullary location. The total data set comprised 136 neurons from 54 female rats. Relative abundance of neuronal types was 27 to 34 to 75 for cold-responsive, warm-responsive, and thermally unresponsive neurons. Response maxima of thermoresponsive neurons to static thermal stimulation of the total truncal surface were 55 +/- 4 ips (mean +/- SE) at 5 degrees C for cold-responsive neurons and 6.0 +/- 1.6 ips at 35 degrees C for warm-responsive neurons. Dynamic thermal stimulation of the total truncal surface at rates up to +/- 1.6 degrees C/s failed to reveal a clear dynamic thermosensitivity in either cold- or warm-responsive neuronal pools. Instead, the data suggest a preferential passing of the static response relative to the dynamic response. Cutaneous thermal receptive fields were diffuse, occupying most of the truncal surface. Subparts of these fields drove thermoresponsive neurons to variable extents, suggesting convergence from unequally represented multiple cutaneous sources. Noxious stimulation at widely distributed body sites consistently augmented activity in cold-responsive neurons. A thermoregulatory rather than somatesthetic role is proposed for the midline medullary neurons studied here.


This article has been cited by other articles:


Home page
 J. Neurosci.Home page
M. W. Nason Jr and P. Mason
Medullary Raphe Neurons Facilitate Brown Adipose Tissue Activation
J. Neurosci., January 25, 2006; 26(4): 1190 - 1198.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
M. W. Nason Jr. and P. Mason
Modulation of Sympathetic and Somatomotor Function by the Ventromedial Medulla
J Neurophysiol, July 1, 2004; 92(1): 510 - 522.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
T. S. Brink and P. Mason
Raphe Magnus Neurons Respond to Noxious Colorectal Distension
J Neurophysiol, May 1, 2003; 89(5): 2506 - 2515.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
C. G. Leung and P. Mason
Physiological Properties of Raphe Magnus Neurons During Sleep and Waking
J Neurophysiol, February 1, 1999; 81(2): 584 - 595.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online