The correlation between passivity and the differential PCC activation during action monitoring assumedly indicates that the experience of passivity is selectively linked to the self-monitoring component of action monitoring.
Nevertheless, the existing evidence in favour of an action monitoring deficit is somewhat inconclusive [22], [27], [31], [32].
The amplitude enhancement has been interpreted as reflecting an overactive action monitoring system in OCD, an interpretation that is substantiated by an increased post-error slowing [55].
These results may be explained in terms of an impaired action monitoring system, likely associated with difficulties in encoding specific motor signals during action execution that would affect retrieval of relevant personal episodic information.
In conclusion, we believe that the reduced enactment effect in adults with AS reveals an impaired action monitoring system, likely associated with an insufficient use of motor and proprioceptive information or with an inadequate sensorimotor integration.
Some authors have reported rather general associations of action monitoring deficits with positive psychotic symptoms in schizophrenia.
But is this failure of visuomotor action monitoring actually linked to passivity symptoms or more likely associated with schizophrenia in general?
From the neuroanatomical perspective these findings of IPL hyperactivation in passivity symptoms underline the function of this area as a key element of action monitoring.
> -wrap-foot> In the patient group the differential activation pattern in the action monitoring condition (MC CC) resembled the pattern found in the previous study in healthy subjects after passivity was controlled for as a covariate of no interest.
However, the conclusion that the perceptual modality which provides data for the defective action monitoring process i.e visual or proprioceptive for passivity experiences, auditory for auditory hallucinations determines the modality of perceptual symptoms is not accepted unequivocally.
Generally, the target-related N2 component indicates action monitoring, early target-selection and response preparation [21 25].
