| Respiratory-related evoked potential elicited by expiratory occlusion. | |
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MedLine Citation:
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PMID: 10444647 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Respiratory-related evoked potentials (RREPs) have been elicited by inspiratory loads in adults and children. The RREP was recorded over the somatosensory region of the cerebral cortex. It was hypothesized that a RREP could be recorded by using expiratory occlusion. Electroencephalographic activity was recorded in adults from 14 scalp locations, referenced to the linked earlobes. The occlusion was presented as an interruption of expiration. Epochs of electroencephalographic activity and mouth pressure were recorded for each expiratory occlusion presentation. There were two occlusion trials and a control trial of 100 presentations each. The epochs in each trial were averaged and examined for the presence of short-latency, occlusion-related peaks. RREP peaks were observed bilaterally with expiratory occlusion and were absent in control unoccluded averages. A positive peak, P(34), was observed at central and postcentral sites. A negative peak, N(53), was observed at frontal and central sites. A second positive peak, P(95), was observed at frontal and central sites. These results demonstrate that expiratory occlusion elicits a RREP. This suggests that expiratory occlusion-related sensory information activates the cerebral cortex similar to that for inspiratory loads. |
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Authors:
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C S Hammond; H Gaeta; C Sapienza; P W Davenport |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of applied physiology (Bethesda, Md. : 1985) Volume: 87 ISSN: 8750-7587 ISO Abbreviation: J. Appl. Physiol. Publication Date: 1999 Aug |
Date Detail:
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Created Date: 1999-09-08 Completed Date: 1999-09-08 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8502536 Medline TA: J Appl Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 835-42 Citation Subset: IM |
Affiliation:
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Departments of Physiological Science and Communication Processes and Disorders, University of Florida, Gainesville, Florida 32610, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Airway Obstruction / physiopathology* Electroencephalography Evoked Potentials / physiology* Female Humans Male Respiration* Signal Processing, Computer-Assisted |
| Grant Support | |
ID/Acronym/Agency:
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HL-48792/HL/NHLBI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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