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Titolo:
TOPOGRAPHIC MAPPING OF THE PATTERN ONSET EVOKED MAGNETIC RESPONSE TO STIMULATION OF DIFFERENT PORTIONS OF THE VISUAL-FIELD
Autore:
HARDING GFA; DEGG C; ANDERSON SJ; HOLLIDAY I; FYLAN F; BARNES G; BEDFORD J;
Indirizzi:
UNIV ASTON,DEPT VIS SCI,ASTON TRIANGLE BIRMINGHAM B4 7ET W MIDLANDS ENGLAND
Titolo Testata:
International journal of psychophysiology
fascicolo: 2-3, volume: 16, anno: 1994,
pagine: 175 - 183
SICI:
0167-8760(1994)16:2-3<175:TMOTPO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETOENCEPHALOGRAM; COMPONENTS;
Keywords:
VISUAL EVOKED MAGNETIC RESPONSES; CALCARINE FISSURE; NEUROMAGNETOMETRY; PATTERN ONSET/OFFSET; MULTICHANNEL MAGNETIC RECORDING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
16
Recensione:
Indirizzi per estratti:
Citazione:
G.F.A. Harding et al., "TOPOGRAPHIC MAPPING OF THE PATTERN ONSET EVOKED MAGNETIC RESPONSE TO STIMULATION OF DIFFERENT PORTIONS OF THE VISUAL-FIELD", International journal of psychophysiology, 16(2-3), 1994, pp. 175-183

Abstract

Visual evoked magnetic responses to pattern onset/offset stimuli wererecorded in 5 normal subjects. The outgoing and ingoing magnetic currents were seen maximally over the contralateral visual cortex to the half field stimulated in the majority of subjects. The distribution of magnetic currents with half field stimulation would be consistent witha dipole on the midline with the positive end pointing laterally. Quadrantic stimuli produced dipoles which would be consistent with a vector sum of dipoles situated; in the case of upper quarter field stimulation, in the lingual gyri on the floor of the calcarine fissure. Lowerquadrantic stimulation produced a vector consistent with dipoles on the cuneal gyrus and on the ceiling of the calcarine fissure producing a resultant vector. The use of paired octant stimuli to improve localisation was demonstrated on both right left and upper and lower half fields.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 13:14:02