Abstract:
:This study examined the effect of modality of stimulation on two measures of cerebral function: (a) the scalp distribution of sensory evoked potentials and (b) the cerebral distribution of radiolabelled HMPAO. Steady-state stimulation in the auditory, somatosensory or visual modality was presented to six subjects. Scalp potentials were measured from a distribution of electrodes, and the radiopharmaceutical was injected through an indwelling intravenous catheter midway through the stimulation/recording session. Equivalent dipole sources estimated from the spatial distribution of the scalp potentials were found to be consistent with regions of high HMPAO uptake as imaged by Single Photon Emission Computed Tomography (SPECT).
journal_name
Brain Topogrjournal_title
Brain topographyauthors
Weinberg H,Johnson B,Cohen P,Crisp D,Robertson Adoi
10.1007/BF01128854subject
Has Abstractpub_date
1989-10-01 00:00:00pages
171-80issue
1-2eissn
0896-0267issn
1573-6792journal_volume
2pub_type
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