Results 211 to 220 of about 351,668 (260)

Sustained division of the attentional spotlight

Nature, 2003
By voluntarily directing attention to a specific region of a visual scene, we can improve our perception of stimuli at that location. This ability to focus attention upon specific zones of the visual field has been described metaphorically as a moveable spotlight or zoom lens that facilitates the processing of stimuli within its 'beam'. A long-standing
M M, Müller, P, Malinowski, T, Gruber, S A, Hillyard   +3 more
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Sustained Attention and Grade Retention

Perceptual and Motor Skills, 1994
Two studies are reported which explore the possible relationship between academic failure, as measured by grade retention, and the capacity to sustain attention on a computerized continuous performance task. In a nonreferred sample, 89 children who had been retained at some point in their academic careers showed a higher frequency of abnormal scores on
M, Gordon, B B, Mettelman, M, Irwin
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Sustained attention in children with autism

Journal of Autism and Developmental Disorders, 1990
Although many children with early infantile autism cannot maintain attention to externally imposed tasks, they may continue a repetitive behavior of their own choosing for long periods of time. This study examined the performance of autistic and mental age matched normal children on a Continuous Performance Test of sustained attention.
H B, Garretson, D, Fein, L, Waterhouse
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Frontal lesions and sustained attention

Neuropsychologia, 1987
Neurological patients were presented with a succession of 2-11 stimuli which they were required to count, reporting the number in the series when it finished. The stimuli were binaural clicks, or pulses on the right or on the left index finger. Regardless of stimulus modality or lateralization, patients with lesions involving the right frontal lobe ...
WILKINS A, Shallice, Timothy, MCCARTHY R.   +2 more
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Sustained Attention in Remitted Schizophrenics

Archives of General Psychiatry, 1973
Sixteen drug-free discharged remitted schizophrenics and twenty control subjects were tested on the Continuous Performance Test (CPT), a test of sustained attention. Following baseline testing, a distraction condition consisting of auditory and visual distractors was introduced.
G W, Wohlberg, C, Kornetsky
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Demand Transitions and Sustained Attention

The Journal of General Psychology, 1993
A recent report by the National Research Council (Huey & Wickens, 1993) has identified transitions in task demand as an important dimension for study in vigilance research. This experiment tested the possibility that the effects of such transitions follow a relatively simple psychophysical rule--they are characterized by contrast effects.
J P, Gluckman, J S, Warm, W N, Dember, R R, Rosa   +3 more
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Attenuation of spatial attentional asymmetries with poor sustained attention

NeuroReport, 2004
The co-existence of deficits in sustained and spatial attention in patients with acquired damage to the right cerebral hemisphere has led to the proposition that sustained attention could be a marker for left spatial inattention, or neglect. We investigated the possibility that reductions in leftward spatial attentional asymmetries could arise from ...
Bellgrove, M. A., Dockree, P. M., Aimola, L., Robertson, I. H.   +3 more
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Sustained Attention in Major Unipolar Depression

Perceptual and Motor Skills, 2007
Patients suffering from a major unipolar depression ( n = 17) and a normal control group ( n = 17) were compared on a noninterrupted vigilance task with a duration of 36 min. The performance decrement over time of the depressed group was indicative of a deficit in sustained attention.
van der Meere, Jaap, Börger, Norbert, van Os, Titus   +2 more
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Sustained Attention in Methadone Patients

International Journal of the Addictions, 1982
Sustained attention was examined in chronic, high-dose (70-120 mg) methadone patients with a modified Continuous Performance Test (Rosvold et al., 1956) 45 min in duration. Working and nonworking patient groups, and drug-free ex-addict and opiate-naive comparison groups were tested at high, moderate, and low signal rates.
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Sustained attention and intelligence

Intelligence, 1990
Abstract The sustained attention of retarded and nonretarded adults was assessed during two 60-min vigilance tests that differed in memory demand. Subjects compared visually presented digit sets that were separated by 3 or 6 s; consecutive matching digit sets served as the target event.
Phillip D. Tomporowski, Royce G. Simpson
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