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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1 Pt 1
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pubmed:dateCreated |
1995-1-9
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pubmed:abstractText |
A method is introduced for studying shifts of attention in semantic space, testing 56 subjects in four experiments on a semantic monitoring task based on rapid, serial, visually presented (RSVP) word-sequences. Following a cue to shift attention, accuracy of semantic monitoring drops abruptly to a low level, then gradually recovers to reach preshift levels over successive stimuli in the RSVP sequence. Using this method, we compared two kinds of criterion-shifts, one requiring a set-reversal ('reversal shifts'), the other involving a shift between orthogonally defined categories ('orthogonal shifts'); no differences were found. We have also examined the difference in a shift between two different processing domains (semantic vs typographic) compared with a shift of criterion within the same processing domain. The results showed no differences for within- vs between-domain shifts. Finally, we studied the time-course of a semantic attention shift. Execution of a semantic shift did not follow an internally controlled time-course but was a direct function of the rate of stimulus presentation. No evidence was found for the operation of a 'supervisory attentional system' independent of external stimulus triggering.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0031-5125
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
79
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
315-35
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading | |
pubmed:year |
1994
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pubmed:articleTitle |
Shifting attention in a rapid visual search paradigm.
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pubmed:affiliation |
Department of Psychology, National Chung-Cheng University, Ming-Hsiung, Chia-Yi, Taiwan, R.O.C.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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