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Titolo:
EYE-MOVEMENT TASK-RELATED TO FRONTAL-LOBE FUNCTIONING IN CHILDREN WITH ATTENTION-DEFICIT DISORDER
Autore:
ROSS RG; HOMMER D; BREIGER D; VARLEY C; RADANT A;
Indirizzi:
UNIV COLORADO,HLTH SCI CTR,DEPT PSYCHIAT,CAMPUS BOX C26871,4200 E 9THAVE DENVER CO 80262 UNIV WASHINGTON SEATTLE WA 98195 NIAAA ROCKVILLE MD 20852
Titolo Testata:
Journal of the American Academy of Child and Adolescent Psychiatry
fascicolo: 6, volume: 33, anno: 1994,
pagine: 869 - 874
SICI:
0890-8567(1994)33:6<869:ETTFFI>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
DORSOLATERAL PREFRONTAL CORTEX; HYPERACTIVITY DISORDER; CORTICAL CONTROL; GUIDED SACCADES; BEHAVIOR; INJURY;
Keywords:
EYE MOVEMENTS; CHILDREN; SACCADES; ATTENTION-DEFICIT HYPERACTIVITY DISORDER; VISUOSPATIAL WORKING MEMORY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
R.G. Ross et al., "EYE-MOVEMENT TASK-RELATED TO FRONTAL-LOBE FUNCTIONING IN CHILDREN WITH ATTENTION-DEFICIT DISORDER", Journal of the American Academy of Child and Adolescent Psychiatry, 33(6), 1994, pp. 869-874

Abstract

Objective: Attention-deficit hyperactivity disorder (ADHD) has been postulated to be related to dysfunction of the prefrontal cortex. In the oculomotor delayed response task, a subject is cued as to where he or she should look (shift visual gaze to) but must delay a short periodand then shift gaze to the location where the cue previously existed but no longer exists (a memory-guided saccade). Dependent measures from this task provide information on three functions tentatively tied toprefrontal cortex functioning: the ability to inhibit response (during the delay period), preparation of motor response (inversely tied to the latency of shifting visual gaze), and accuracy of working visuospatial memory (accuracy of the memory-guided saccade). Method: Thirteen children with ADHD and 10 normal controls, aged 9 to 12 years, were tested using an 800-msec delay period. Results: Children with ADHD showed, relative to normal controls, deficits on inhibiting response duringthe delay period but no differences in latency (preparation of motor response) or accuracy of visuospatial memory. Conclusions: These results support the hypothesis that the primary deficit in ADHD is difficulty in inhibition of response. This deficit may be associated with pathology located outside the dorsolateral prefrontal cortex.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 08:55:58