Effects of divided attention to visual and auditory stimuli on event-related potentials.
نویسندگان
چکیده
منابع مشابه
Human event-related brain potentials to auditory periodic noise stimuli.
Periodic noise is perceived as different from ordinary non-repeating noise due to the involvement of echoic memory. Since this stimulus does not contain simple physical cues (such as onsets or spectral shape) that might obscure sensory memory interpretations, it is a valuable tool to study sensory memory functions. We demonstrated for the first time that the processing of periodic noise can be ...
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The present event-related potential (ERP) study investigated whether attending to a particular direction of motion similarly enhances the processing of auditory and visual stimuli. ERPs were recorded while participants perceived horizontally moving visual and auditory stimuli. Attention was manipulated by asking participants to detect an infrequent target stimulus that was of a specified modali...
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Visual cognitive responses (P300) to moving stimuli were tested in 36 subjects with the aim to find the normal range of P300 parameters. Concomitantly, the circadian intra-individual variability of the P300 was studied in a subgroup of 6 subjects. Visual stimuli consisted of either coherent (frequent stimulus) or non-coherent motion (random stimulus). The oddball paradigm was applied for record...
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BACKGROUND Prior studies have shown a consistent reduction of the auditory P300 in schizophrenia, while the visual attention findings have been mixed. Both the auditory and visual N2b, an earlier, modality-specific attention index, are reduced in schizophrenia, sometimes despite sparing of the visual P300. Thus there may be a dissociation between the N2b and P300 attention effects in auditory a...
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ژورنال
عنوان ژورنال: The Japanese journal of psychology
سال: 1991
ISSN: 1884-1082,0021-5236
DOI: 10.4992/jjpsy.62.67