Linked Life Data

8643478

Source:http://linkedlifedata.com/resource/pubmed/id/8643478

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1996-7-18
pubmed:abstractText
Steady-state visual evoked potentials (SSVEPs) were recorded from the scalp of human subjects who were cued to attend to a rapid sequence of alphanumeric characters presented to one visual half-field while ignoring a concurrent sequence of characters in the opposite half-field. These two-character sequences were each superimposed upon a small square background that was flickered at a rate of 8.6 Hz in one half-field and 12 Hz in the other half-field. The amplitude of the frequency-coded SSVEP elicited by either of the task-irrelevant flickering backgrounds was significantly enlarged when attention was focused upon the character sequence at the same location. This amplitude enhancement with attention was most prominent over occipital-temporal scalp areas of the right cerebral hemisphere regardless of the visual field of stimulation. These findings indicate that the SSVEP reflects an enhancement of neural responses to all stimuli that fall within the "spotlight" of spatial attention, whether or not the stimuli are task-relevant. Recordings of the SSVEP provide a new approach for studying the neural mechanisms and functional properties of selective attention to multi-element visual displays.
pubmed:grant
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-2050819, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-2091717, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-2137514, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-2431879, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-3945708, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-7121799, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-7512772, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-7530186, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-7803199, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-7990926, http://linkedlifedata.com/resource/pubmed/commentcorrection/8643478-8084731
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0027-8424
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4770-4
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Selective attention to stimulus location modulates the steady-state visual evoked potential.
pubmed:affiliation
Department of Neurosciences, University of California at San Diego, La Jolla, 92093-0608, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't