Anomalous echo: Exploring abnormal experience correlates of emotional motor resonance in Schizophrenia Spectrum

Abstract Anomalous experiences such as Basic Symptoms (BS) are considered the first subjective manifestation of the neurobiological substrate of schizophrenia. The purpose of this study was to explore whether a low or high emotional motor resonance occurring in Schizophrenia Spectrum (SzSp) patients...

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Bibliographic Details
Published in:Psychiatry research 2015-09, Vol.229 (1), p.559-564
Main Authors: Sestito, Mariateresa, Raballo, Andrea, Umiltà, Maria Alessandra, Amore, Mario, Maggini, Carlo, Gallese, Vittorio
Format: Article
Language:English
Subjects:
Adult
Basic symptoms
Electromyography - methods
Embodiment
Emotions
Facial EMG
Female
Humans
Male
Middle Aged
Motor resonance
Phenomenology
Photic Stimulation - methods
Psychiatry
Psychomotor Performance
Psychotic Disorders - psychology
Schizophrenia - diagnosis
Schizophrenia Spectrum
Schizophrenic Psychology
Self Concept
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Summary:Abstract Anomalous experiences such as Basic Symptoms (BS) are considered the first subjective manifestation of the neurobiological substrate of schizophrenia. The purpose of this study was to explore whether a low or high emotional motor resonance occurring in Schizophrenia Spectrum (SzSp) patients was related to patients׳ clinical features and to their anomalous subjective experiences as indexed by the Bonn Scale for the Assessment of Basic Symptoms (BSABS). To this aim, we employed a validated paradigm sensitive in evoking a congruent facial mimicry (measured by means of facial electromyographic activity, EMG) through multimodal positive and negative emotional stimuli presentation. Results showed that SzSp patients more resonating with negative emotional stimuli (i.e. Externalizers ) had significantly higher scores in BSABS Cluster 3 ( Vulnerability ) and more psychotic episodes than Internalizers patients. On the other hand, SzSp patients more resonating with positive emotional stimuli (i.e. Externalizers ) scored higher in BSABS Cluster 5 ( Interpersonal irritation ) than Internalizers . Drawing upon a phenomenological-based perspective, we attempted to shed new light on the abnormal experiences characterizing schizophrenia, explaining them in terms of a disruption of the normal self-perception conveyed by the basic, low-level emotional motor mechanisms.
ISSN:0165-1781
1872-7123
DOI:10.1016/j.psychres.2015.05.038