Subjectivity of the Anomalous Sense of Self Is Represented in Gray Matter Volume in the Brain.

Autor:	Kanayama N; Department of Psychiatry and Neurosciences, Institute of Biomedical and Health Sciences, Hiroshima UniversityHiroshima, Japan.; Center of KANSEI Innovation, Hiroshima UniversityHiroshima, Japan., Asai T; Nippon Telegraph and Telephone Communication Science Laboratories, Human Information Science LaboratoryKanagawa, Japan., Nakao T; Department of Psychology, Graduate School of Education, Hiroshima UniversityHiroshima, Japan., Makita K; Department of Psychiatry and Neurosciences, Institute of Biomedical and Health Sciences, Hiroshima UniversityHiroshima, Japan.; Center of KANSEI Innovation, Hiroshima UniversityHiroshima, Japan., Kozuma R; Faculty of Medicine, Hiroshima UniversityHiroshima, Japan., Uyama T; Faculty of Medicine, Hiroshima UniversityHiroshima, Japan., Yamane T; Faculty of Medicine, Hiroshima UniversityHiroshima, Japan., Kadota H; Research Institute, Kochi University of TechnologyKochi, Japan., Yamawaki S; Department of Psychiatry and Neurosciences, Institute of Biomedical and Health Sciences, Hiroshima UniversityHiroshima, Japan.; Center of KANSEI Innovation, Hiroshima UniversityHiroshima, Japan.
Jazyk:	angličtina
Zdroj:	Frontiers in human neuroscience [Front Hum Neurosci] 2017 May 09; Vol. 11, pp. 232. Date of Electronic Publication: 2017 May 09 (Print Publication: 2017).
DOI:	10.3389/fnhum.2017.00232
Abstrakt:	The self includes complicated and heterogeneous functions. Researchers have divided the self into three distinct functions called "agency," "ownership," and "narrative self". These correspond to psychiatric symptoms, behavioral characteristics and neural responses, but their relationship with brain structure is unclear. This study examined the relationship between the subjectivity of self-related malfunctions and brain structure in terms of gray matter (GM) volume in 96 healthy people. They completed a recently developed self-reported questionnaire called the Embodied Sense of Self Scale (ESSS) that measures self-related malfunctions. The ESSS has three subscales reflecting the three distinct functions of the self. We also determined the participants' brain structures using magnetic resonance imaging (MRI) and voxel-based morphometry (VBM). Multiple regression analysis revealed a significant negative correlation between ownership malfunction and the insular cortex GM volume. A relationship with brain structure could thus only be confirmed for the ESSS "ownership" subscale. This finding suggests that distinct brain structures feel ownership and that the ESSS could partly screen for distinct brain structures.
Databáze:	MEDLINE
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