Brain preparation before a voluntary action: evidence against unconscious movement initiation.
Conscious Cogn
; 19(1): 447-56, 2010 Mar.
Article
en En
| MEDLINE
| ID: mdl-19736023
ABSTRACT
Benjamin Libet has argued that electrophysiological signs of cortical movement preparation are present before people report having made a conscious decision to move, and that these signs constitute evidence that voluntary movements are initiated unconsciously. This controversial conclusion depends critically on the assumption that the electrophysiological signs recorded by Libet, Gleason, Wright, and Pearl (1983) are associated only with preparation for movement. We tested that assumption by comparing the electrophysiological signs before a decision to move with signs present before a decision not to move. There was no evidence of stronger electrophysiological signs before a decision to move than before a decision not to move, so these signs clearly are not specific to movement preparation. We conclude that Libet's results do not provide evidence that voluntary movements are initiated unconsciously.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Nivel de Alerta
/
Inconsciente en Psicología
/
Volición
/
Variación Contingente Negativa
/
Movimiento
Límite:
Adolescent
/
Adult
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Female
/
Humans
/
Male
Idioma:
En
Revista:
Conscious Cogn
Asunto de la revista:
PSICOFISIOLOGIA
/
PSICOLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Nueva Zelanda