Linked Life Data

7681754

Source:http://linkedlifedata.com/resource/pubmed/id/7681754

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1993-4-30
pubmed:abstractText
Visual and auditory evoked potentials to 4 stimulus intensities in each modality were recorded from Fz, Cz, and Oz (visual) and Fz and Cz (auditory). Response amplitudes for P1-N1 and N1-P2 components were analyzed. Visual responses at Oz showed no increase in amplitude with brighter stimuli for either component. At both Fz and Cz, response amplitude increased with stimulus intensity at each lead for both modalities. For P1-N1 the slope of the stimulus/response function was similar for both modalities. However, for N1-P2 the slope was significantly higher for auditory than for visual EPs. These results are inconsistent with a view of augmenting/reducing as resulting from sensory modulation by a non-specific mechanism, such as the mesencephalic reticular formation, and instead suggest that a more selective mechanism such as regulation of sensory transmission by the prefrontal cortex may underlie this phenomenon.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0013-4694
pubmed:author
pubmed:issnType
Print
pubmed:volume
88
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
131-42
pubmed:dateRevised
2008-9-9
pubmed:meshHeading
pubmed:articleTitle
Modality specificity of evoked potential augmenting/reducing.
pubmed:affiliation
College of Health and Human Services, San Diego State University, CA 92182-0254.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't