Other faces in the mirror: a perspective on schizophrenia |
| |
Authors: | MICHAEL A ARBIB |
| |
Institution: | 1.Computer Science, Neuroscience, and the USC Brain Project, University of Southern California, Los Angeles, CA 90089-2520, USA |
| |
Abstract: | A patient with schizophrenia may generate an action (whether manual
or verbal), but not attribute the generation of that action to himself. We
distinguish self-monitoring and attribution of agency, relating only the former
to forward models and the mirror system. We suggest that alien hand experiences
occur when an action progresses through hand control pathways with no record
of disinhibition having been kept and is then seen but dismissed as external.
Analogously, auditory pathways are active during verbal hallucinations and
produce a subvocal verbal process, but since no record is kept of the words
being created, they are treated as external. The subject then proceeds to
confabulate, to provide an account for the agency. |
| |
Keywords: | Schizophrenia mirror systems self-monitoring attribution of agency delusions |
|
|