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Titolo:
SCALING OF MOVEMENT VELOCITY - A MEASURE OF NEUROMOTOR RETARDATION ININDIVIDUALS WITH PSYCHOPATHOLOGY
Autore:
CALIGIURI MP; LOHR JB; RUCK RK;
Indirizzi:
UNIV CALIF SAN DIEGO,DEPT PSYCHIAT 0603,9500 GILMAN DR LA JOLLA CA 92058 DEPT VET AFFAIRS MED CTR,PSYCHIAT SERV SAN DIEGO CA 00000
Titolo Testata:
Psychophysiology
fascicolo: 4, volume: 35, anno: 1998,
pagine: 431 - 437
SICI:
0048-5772(1998)35:4<431:SOMV-A>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEGATIVE SYMPTOMS; PARKINSONS-DISEASE; DEPRESSION; SCHIZOPHRENIA; BRADYKINESIA; MUSCLES;
Keywords:
MOTOR PROGRAMMING; BRADYKINESIA; INSTRUMENTATION; PSYCHOSIS; MOTOR RETARDATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
M.P. Caligiuri et al., "SCALING OF MOVEMENT VELOCITY - A MEASURE OF NEUROMOTOR RETARDATION ININDIVIDUALS WITH PSYCHOPATHOLOGY", Psychophysiology, 35(4), 1998, pp. 431-437

Abstract

The study of motor slowness based on observational methods has limitations. Whether motor retardation has a psychomotor or neuromotor basisis unclear because psychiatric and motor symptoms overlap. Observational methods lack the precision necessary to distinguish cognitive frommotor processes. For the present study, we used an objective measure of neuromotor dysfunction to quantify the extent to which an individual programs movement velocity in anticipation of increasing target distance. Persons with Parkinson's disease (PD) or functional psychosis were studied with a group of healthy comparison subjects. Results indicated that the slope of the linear function relating velocity to distance was abnormal in the PD group and in approximately half of the psychosis group. Analyses revealed the measure to have high specificity and sensitivity. Weak correlations between velocity scaling and psychopathology support the neuromotor basis of the measure. We conclude that this measure of velocity scaling is relatively uninfluenced by cognitivefactors that may underlie psychomotor retardation.

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Documento generato il 29/03/20 alle ore 01:03:53