Scalp topography of the short latency components of the respiratory
related evoked potential in children.
Davenport, Paul W., Ian M. Colrain, and Paul McN. Hill.
Department of Physiological Sciences, University of Florida,
Gainesville, Florida; Departments of Psychology and Physiology,
University of Auckland, Auckland, New Zealand
APStracts 3:0061A, 1996.
RREPs have been elicited by inspiratory occlusion and recorded at EEG
sites overlying somatosensory cortex in adults. The present study was
the first to be conducted in normal children and designed to identify
the scalp distribution of the early RREP components. EEG responses to
occlusion were recorded from CZ-C3, CZ-C4 and 17 sites referenced to
the linked earlobes. The RREP was observed in all subjects in the CZ
-C3 and CZ-C4 electrodes pairs. The earlobe referenced recordings
revealed two RREP patterns. The P1 and N1 peaks were found in C3, C4,
P3, P4, T3 and T4 . The RREP recorded from the F3, F4, F7 and F8
electrodes did not exhibit either the P1 or N1 peaks. A negative
peak, NF, occurred approximately 13 msec after the P1 peak. The
results show that the RREP to inspiratory occlusions was present
bilaterally but greatly diminished over midline sites. Further,
consistent with mechanically and electrically elicited SEPs, the RREP
displayed a polarity inversion over the central sulcus, in the early
component latency range.
Received 2 February 1995; accepted in final form 18 December
1995.
APS Manuscript Number A121-5.
Article publication pending Journal of Applied Physiology.
ISSN 1080-4757 Copyright 1996 The American Physiological Society.
Published in APStracts on 8 February 96