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The case for the comparator model as an explanation of the sense of…
The case for the comparator model as an explanation of the sense
of agency and its breakdowns
comparing between Frith comparator model to Synofzik multifactorial weighting model
elements of the comparator model
physical goal state
command representation
efference copy
corollary discharge
predicted sensory input
actual sensory input
estimation of the position of the body
combination of both actual and predicted sensory input
SoA problems created from "problems in forming or accessing representations of the actual or predicted sensory consequences of action"
more specifically - "a deficit in the representation of predicted sensory consequences"
" the problem underlying the loss of the sense of agency in delusions of control is a lack of access to the predicted sensory consequences of action"
possible problems in the CM
there is SoA although there is no actual of predicted representation -
specially this
Libet experiment - subject report movement before they begin
report movement, not agency
how is someone suppose to have agency over action that he don't perceive at all?
there is SoA although no comparison had been made
there is SoA although the result of the comparison is true
People with the delusion of control suffer from degraded awareness of their actions - especially with no visual feedback
SCZ experiments
Frith experiment
correcting errors without seeing
Daparti Expermint
attributing movements to their source (hands, mirror, screen)
Criticism
the writer - this is different problem then DC because in DC the patient fill like alien act from his own body
this research cannot explain the DC source
Synofzik - the question is about ownership not agency
writer response - SoA could be essential part of self recognition
Parietal lobe patients also suffer from low performence
"In this case the failure of self-attribution has nothing to do with the sense of agency" - What?
tickling experiment
the tickling for DC patients is much more intense - probably due to surprise effect
is DC patient are more likely to laugh from there on jokes?
will experiments
priming
helping hands
answer - maybe priming or wish could falsely translate in the brain to prediction
my answer - maybe priming or wish create an optional prediction, and when the reality is along with that so its create this effect
Sato & Yasuda: SoA is consequence of match between the actual and the prediction, not the intention
there is a difference between intention & prediction
what the meaning of grade the feeling that is was you?!?!??!?
two changes in the comperator model
in general representations of the actual sensory consequences of action in certain modalities matter more than in others
some mental representations being mistaken for actual or predicted sensory consequences
the problem with the multifactorial model is that it's not falsable