Retropost, 2013:
Una conferencia que explica ciertos efectos de la atención
para la activación de centros motores de producción lingüística en los
circuitos cerebrales asociados a la verbalización y al almacenamiento
léxico. También dice cosas interesantes para explicar las voces que
algunas personas oyen dentro de su cabeza—aquello de Pink Floyd de
"there's someone in my head but it's not me" (The Dark Side of the Moon).
Inner speech in
action : EMG data during verbal thought and auditory verbal
hallucination
Conférence de Hélène
Loevenbruck.
Inner speech refers to the silent
production of words in one’s mind. It plays a central role in human
consciousness at the interplay of language and thought and it has been
described as a kind of motor action. An influential motor control model
(the ‘predictive model’) claims that when motor commands are sent to
the motor system to achieve an intended state, an efference copy is
issued in parallel. This efference copy is used to calculate a
prediction of the sensory outcome of the motor plan. It is suggested
that if the actual sensory feedback matches the predicted outcome then
self-authorship is experienced. This model has been extended to inner
speech and it has been suggested that a defective efference copy could
underlie auditory verbal hallucinations (AVH) in schizophrenia, with
self-initiated covert verbal actions experienced as originating from an
external cause. In this talk, I will present labial EMG data that
suggest that wilful inner speech can be regarded as a kind of action
and AVHs as disrupted inner speech.
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