Late event-related potentials and movement complexity in young adults with Down syndrome.
Neurophysiol Clin
; 35(2-3): 81-91, 2005 Jul.
Article
en En
| MEDLINE
| ID: mdl-16087071
ABSTRACT
OBJECTIVES:
Through event-related potential (ERP) recording, to better understand the perceptive-motor slowness in adults with Down syndrome (DS); in particular, to assess whether motor preparation influences the speed of allocation of perceptual attention as reflected by the P3 latency. PATIENTS ANDMETHODS:
ERPs were obtained in adults with and without DS through an auditory oddball paradigm under a passive and two active (simple vs. complex motor response) conditions. Reaction times (RTs) were recorded in the two active conditions.RESULTS:
There was no influence of movement complexity on either RT or P3b latency in the control group. In the DS group, RT was delayed under simple vs. complex conditions whereas P3b latency was not affected. N2a and N2b were often missing in DS individuals.CONCLUSION:
Motor preparation processes per se rather than interaction with perceptual attention could be defective in individuals with DS when the motor component of the response is minimal.
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Bases de datos:
MEDLINE
Asunto principal:
Síndrome de Down
/
Movimiento
Idioma:
En
Revista:
Neurophysiol Clin
Año:
2005
Tipo del documento:
Article
País de afiliación:
Francia