Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Cerebral hemodynamic response induced by the Tower of Hanoi puzzle and theWisconsin Card Sorting test
Autore:
Schuepbach, D; Merlo, MCG; Goenner, F; Staikov, I; Mattle, HP; Dierks, T; Brenner, HD;
Indirizzi:
Univ Bern, Psychiat Serv, CH-3010 Bern, Switzerland Univ Bern Bern Switzerland CH-3010 chiat Serv, CH-3010 Bern, Switzerland Univ Bern, Inselspital, Dept Neurol, CH-3010 Bern, Switzerland Univ Bern Bern Switzerland CH-3010 ept Neurol, CH-3010 Bern, Switzerland
Titolo Testata:
NEUROPSYCHOLOGIA
fascicolo: 1, volume: 40, anno: 2002,
pagine: 39 - 53
SICI:
0028-3932(2002)40:1<39:CHRIBT>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; DORSOLATERAL PREFRONTAL CORTEX; BLOOD-FLOW VELOCITY; TRANSCRANIAL DOPPLER; PHYSIOLOGIC DYSFUNCTION; COGNITIVE TASKS; FUNCTIONAL MRI; HUMAN BRAIN; PERFORMANCE; SCHIZOPHRENIA;
Keywords:
cerebral blood flow velocity; cerebral blood flow; prefrontal function; transcranial Doppler sonography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Schuepbach, D Univ Zurich, Hosp Psychiat, POB 68, CH-8029 Zurich, Switzerland Univ Zurich POB 68 Zurich Switzerland CH-8029 , Switzerland
Citazione:
D. Schuepbach et al., "Cerebral hemodynamic response induced by the Tower of Hanoi puzzle and theWisconsin Card Sorting test", NEUROPSYCHO, 40(1), 2002, pp. 39-53

Abstract

Transcranial Doppler sonography (TCD) was applied in normal subjects to investigate the effect of prefrontal functions like the Tower of Hanoi (TOH) task and the Wisconsin Card Sorting test (WCST) on cerebral hemodynamics. In 20 healthy volunteers, left and right middle cerebral artery (MCA) and anterior cerebral artery (ACA) were insonated. The TOH task and the WCST wereadministered while cerebral blood flow velocity (CBFV) was registered. Each test was repeated once per artery pair. There was a visuomotor test to control the motor and visual stimulations, Three phases of CBFV time course were detected: an initial peak within 5 s, a following decrease within 25 s and a steady state beginning at 40 s. The TOH task, WCST and visuomotor tests had different mean CBFV during the initial peak (MCA: P < 0.05, ACA: P <0.05) as well as for the decrease (ACA: P < 0.01) and the steady state (MCA: P < 0.01; ACA: P < 0.01). The TOH showed an increased mean CBFV as compared with the WCST during the steady state (MCA: P < 0.01; ACA: P < 0.05). However, temporal modulation of mean CBFV during category shift of the WCST resulted in significantly increased values after category shift (MCA: P < 0.001; ACA: P < 0.01) as compared with CBFV before the category shift. Thesefindings showed a different CBFV pattern during the TOH task and WCST thanduring the visuomotor test. In conclusion, TCD was able to assess CBFV in prefrontal functions, using a high resolution in time. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/20 alle ore 12:25:55