PMID- 17240165 OWN - NLM STAT- MEDLINE DCOM- 20070416 LR - 20220309 IS - 1053-8119 (Print) IS - 1053-8119 (Linking) VI - 35 IP - 1 DP - 2007 Mar TI - Social cognition and frontal lobe pathology in schizophrenia: a voxel-based morphometric study. PG - 292-8 AB - Impaired social cognition in schizophrenia is considered as the core contributor in the poor psychosocial functioning of schizophrenic patients. In this study, in order to better understand the neurobiological processes underlying social dysfunction in schizophrenia, we investigated regional structural brain abnormalities and emotion-attribution abilities in these patients. Twenty schizophrenic patients and 20 group-matched healthy comparison participants underwent magnetic resonance imaging (MRI) and were examined for emotion-attribution abilities by using the Perception of Affect Task (PAT). Voxel-based morphometry (VBM) was applied to investigate regional brain structural alterations. Relative to the healthy participants, the schizophrenic patients exhibited reduced gray matter concentrations in the left superior temporal gyrus, the medial prefrontal cortex (MPFC), right anterior cingulate gyrus, bilateral ventrolateral prefrontal cortex, and right insula. The schizophrenic patients performed poorly on emotion-attribution tasks. Importantly, poor performance on emotion attribution to protagonists in social situations was found to be associated with reductions in gray matter in the MPFC of the patient group. This preliminary result suggests that in schizophrenia, difficulties in understanding the emotional experiences of others are possible manifestations of structural abnormalities in the MPFC. This study provides the neurobiological correlates of social dysfunction in schizophrenia and links structural abnormalities with impaired social cognitive abilities. FAU - Yamada, Makiko AU - Yamada M AD - Department of Neuropsychiatry, Graduate School of Medicine, Kyoto University, 54 Kawara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan. yamada@kuhp.kyoto-u.ac.jp FAU - Hirao, Kazuyuki AU - Hirao K FAU - Namiki, Chihiro AU - Namiki C FAU - Hanakawa, Takashi AU - Hanakawa T FAU - Fukuyama, Hidenao AU - Fukuyama H FAU - Hayashi, Takuji AU - Hayashi T FAU - Murai, Toshiya AU - Murai T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070119 PL - United States TA - Neuroimage JT - NeuroImage JID - 9215515 SB - IM MH - Adult MH - Cognition/*physiology MH - Emotions/physiology MH - Face MH - Female MH - Frontal Lobe/*pathology MH - Humans MH - Intelligence Tests MH - Magnetic Resonance Imaging MH - Male MH - Neuropsychological Tests MH - Psychomotor Performance/physiology MH - Recognition, Psychology/physiology MH - Schizophrenia/*pathology MH - *Schizophrenic Psychology MH - *Social Behavior EDAT- 2007/01/24 09:00 MHDA- 2007/04/17 09:00 CRDT- 2007/01/24 09:00 PHST- 2006/07/26 00:00 [received] PHST- 2006/10/18 00:00 [revised] PHST- 2006/10/24 00:00 [accepted] PHST- 2007/01/24 09:00 [pubmed] PHST- 2007/04/17 09:00 [medline] PHST- 2007/01/24 09:00 [entrez] AID - S1053-8119(06)01071-8 [pii] AID - 10.1016/j.neuroimage.2006.10.046 [doi] PST - ppublish SO - Neuroimage. 2007 Mar;35(1):292-8. doi: 10.1016/j.neuroimage.2006.10.046. Epub 2007 Jan 19.