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Interoception and Positive Symptoms in Schizophrenia
- Source :
- Frontiers in Human Neuroscience, Frontiers in Human Neuroscience, Vol 10 (2016)
- Publication Year :
- 2016
- Publisher :
- Frontiers Media S.A., 2016.
-
Abstract
- The present study focuses on the multifaceted concept of self-disturbance in schizophrenia, adding knowledge about a not yet investigated aspect, which is the interoceptive accuracy. Starting from the assumption that interoceptive accuracy requires an intact sense of self, which otherwise was proved to be altered in schizophrenia, the aim of the present study was to explore interoceptive accuracy in a group of schizophrenia patients, compared to healthy controls. Furthermore, the possible association between interoceptive accuracy and patients’ positive and negative symptomatology was assessed. To pursue these goals, a group of 23 schizophrenia patients and a group of 23 healthy controls performed a heartbeat perception task. Patients’ symptomatology was assessed by means of the Positive and Negative Syndrome Scale (PANSS). Results demonstrated significantly lower interoceptive accuracy in schizophrenia patients compared to healthy controls. This difference was not accounted for participants’ age, BMI, anxiety levels and heart rate. Furthermore, patients’ illness severity, attention and pharmacological treatment did not influence their interoceptive accuracy levels. Interestingly, a strong positive relation between interoceptive accuracy and positive symptoms severity, especially Grandiosity, was found. The present results demonstrate for the first time that interoceptive accuracy is altered in schizophrenia. Furthermore, they prove a specific association between interoceptive accuracy and positive symptomatology, suggesting that the symptom Grandiosity might be protective against an altered basic sense of self in patients characterized by higher sensibility to their inner bodily sensations.
- Subjects :
- medicine.medical_specialty
bodily self
basic self
Psychology of self
positive symptoms
PHI
interoception
050105 experimental psychology
lcsh:RC321-571
03 medical and health sciences
Behavioral Neuroscience
0302 clinical medicine
Heart rate
mental disorders
medicine
0501 psychology and cognitive sciences
Psychiatry
Association (psychology)
lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry
Biological Psychiatry
Original Research
Positive and Negative Syndrome Scale
Grandiosity
05 social sciences
medicine.disease
grandiosity
schizophrenia
Psychiatry and Mental health
Basic self
Bodily self
Interoception
Interoceptive accuracy
Positive symptoms
Schizophrenia
Selfhood
Neuropsychology and Physiological Psychology
Neurology
Psychiatry and Mental Health
selfhood
interoceptive accuracy
Anxiety
medicine.symptom
Psychology
030217 neurology & neurosurgery
Clinical psychology
Neuroscience
Subjects
Details
- Language :
- English
- ISSN :
- 16625161 and 1662453X
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Frontiers in Human Neuroscience
- Accession number :
- edsair.doi.dedup.....5b9e0e595d54a537e1c1dc538c97c834
- Full Text :
- https://doi.org/10.3389/fnhum.2016.00379