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Main Title Focal Lesions of Visual Cortex: Effects on Visual Evoked Potentials in Rats.
Author Dyer, R. S. ; Jensen, K. F. ; Boyes, W. K. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1987
Report Number EPA/600/J-87/017;
Stock Number PB87-196549
Additional Subjects Evoked potential ; Cerebral cortex ; Nervous system ; Nerve cells ; Electrodes ; Neurology ; Rats ; Electric charge ; Reprints ; VEP(Visual Evoked Potential) ; FEP(Flash Evoked Potential) ; PREP(Pattern Reversal Evoked Potential)
Library Call Number Additional Info Location Last
NTIS  PB87-196549 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 18p
Abstract Focal lesions were placed in the visual cortex of Long-Evans hooded rats, immediately below skull screw recording electrodes. Lesions were produced by heat and extended an average depth of about 0.9 mm below the cortical surface. Evoked potentials recorded from the electrode overlying the cortical lesion were compared to simultaneously recorded potentials from a contralateral homotopic site. The effects of the lesions were selective. Flash evoked potential (FEP) peaks P1, P2, and N2 were depressed by the lesion, while peaks N1 and P3 were augmented. Peak N3 was depressed by the lesion, while peaks N1 and P2 were made more distinct. The results emphasized that different peaks have different generators, and suggest in particular that FEP peaks P1 and N2, and peak N3 of the pattern reversal evoked potential require the superficial layers of the cortex.
Supplementary Notes Pub. in Experimental Neurology 95, p100-115 1987.
NTIS Title Notes Journal article.
Title Annotations Reprint: Focal Lesions of Visual Cortex: Effects on Visual Evoked Potentials in Rats.
PUB Date Free Form 1987
Category Codes 57S; 57I
NTIS Prices PC A02/MF A01
Primary Description 600/11
Document Type NT
Cataloging Source NTIS/MT
Control Number 723225738
Origin NTIS
Type CAT