Schizophrenia as a self-disorder due to perceptual incoherence

L. Postmes, H.N. Sno, S. Goedhart, J. van der Stel, H.D. Heering, L. de Haan
2014 Schizophrenia Research  
The aim of this review is to describe the potential relationship between multisensory disintegration and selfdisorders in schizophrenia spectrum disorders. Sensory processing impairments affecting multisensory integration have been demonstrated in schizophrenia. From a developmental perspective multisensory integration is considered to be crucial for normal self-experience. An impairment of multisensory integration is called 'perceptual incoherence'. We theorize that perceptual incoherence may
more » ... voke incoherent self-experiences including depersonalization, ambivalence, diminished sense of agency, and 'loosening of associations' between thoughts, feelings and actions that lie within the framework of 'self-disorders' as described by Sass and Parnas (2003) . We postulate that subconscious attempts to restore perceptual coherence may induce hallucinations and delusions. Increased insight into mechanisms underlying 'self-disorders' may enhance our understanding of schizophrenia, improve recognition of early psychosis, and extend the range of therapeutic possibilities. A PubMed literature search was performed to address two questions: Are perceptual incoherence and self-disorders related in schizophrenia spectrum disorders? If so, how can we characterize the relationship between perceptual incoherence, self-disorders and psychotic symptoms? Our search used the following keywords: schizophrenia, selfdisorders, body image, body awareness, self-awareness, self-other organization, imagination, olfactory sense, proprioception, vestibular sense, interoception, haptic sense, sensory integration, sensory processing, crossmodal, and development. Additional literature was retrieved via references. There were no limitations regarding year of publication, languages were limited to English, French, German and Dutch. Historical context Many prominent psychiatrists have shared the concept that schizophrenia is associated with disintegration of self. In Bleuler's terminology
doi:10.1016/j.schres.2013.07.027 pmid:23973319 fatcat:kvvcwry2f5f4zeguq5kvrba37u