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Titolo:
Temporal allocation of visual attention in adult attention deficit hyperactivity disorder
Autore:
Hollingsworth, DE; McAuliffe, SP; Knowlton, BJ;
Indirizzi:
Univ Calif Los Angeles, Dept Psychol, Los Angeles, CA 90095 USA Univ CalifLos Angeles Los Angeles CA USA 90095 Los Angeles, CA 90095 USA
Titolo Testata:
JOURNAL OF COGNITIVE NEUROSCIENCE
fascicolo: 3, volume: 13, anno: 2001,
pagine: 298 - 305
SICI:
0898-929X(20010401)13:3<298:TAOVAI>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
DEFICIT/HYPERACTIVITY DISORDER; SUSTAINED ATTENTION; NEUROPSYCHOLOGICAL PERFORMANCE; ANTERIOR CINGULATE; INHIBITORY CONTROL; SPATIAL ATTENTION; NORMAL-CHILDREN; WORKING-MEMORY; ADHD; SAMPLE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Knowlton, BJ Univ Calif Los Angeles, Dept Psychol, Franz Hall, Los Angeles, CA 90095 USA Univ Calif Los Angeles Franz Hall Los Angeles CA USA 90095 SA
Citazione:
D.E. Hollingsworth et al., "Temporal allocation of visual attention in adult attention deficit hyperactivity disorder", J COGN NEUR, 13(3), 2001, pp. 298-305

Abstract

In two experiments, we examined the ability of adults with attention deficit hyperactivity disorder (ADHD) to process multiple targets appearing in arapid serial visual presentation (RSVP) stream. Using a standard attentional blink (AB) task, subjects were required to both identify a target in theRSVP stream and detect a probe appearing in one of several posttarget serial positions. In Experiment 1, ADHD adults exhibited a protracted AB compared to controls, in that their probe detection did not improve as a functionof increasing probe-to-target intervals (450-720 msec). In Experiment 2, the ADHD group performed as well as controls in detecting probes appearing immediately (i.e., 90 msec) after the target. Taken together, the results demonstrate that adults with ADHD exhibit a selective deficit in rapidly shifting attention between the target and the probe, when the two appear several hundred milliseconds apart. These results suggest that adults with ADHD can use automatic (reflexive) attention to detect items in close temporal proximity in the RSVP stream, but have difficulty allocating controlled attention to multiple stimuli separated by several hundred milliseconds.

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Documento generato il 22/01/20 alle ore 09:27:46