PMID- 25484590 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20141208 LR - 20240322 IS - 1176-6328 (Print) IS - 1178-2021 (Electronic) IS - 1176-6328 (Linking) VI - 10 DP - 2014 TI - Absent activation in medial prefrontal cortex and temporoparietal junction but not superior temporal sulcus during the perception of biological motion in schizophrenia: a functional MRI study. PG - 2221-30 LID - 10.2147/NDT.S70074 [doi] AB - BACKGROUND: Patients with schizophrenia show disturbances in both visual perception and social cognition. Perception of biological motion (BM) is a higher-level visual process, and is known to be associated with social cognition. BM induces activation in the "social brain network", including the superior temporal sulcus (STS). Although deficits in the detection of BM and atypical activation in the STS have been reported in patients with schizophrenia, it remains unclear whether other nodes of the "social brain network" are also atypical in patients with schizophrenia. PURPOSE: We aimed to explore whether brain regions other than STS were involved during BM perception in patients with schizophrenia, using functional magnetic resonance imaging (fMRI). METHODS AND PATIENTS: Seventeen patients with schizophrenia, and 17 age- and sex- matched healthy controls, underwent fMRI scanning during a one-back visual task, containing three experimental conditions: (1) BM, (2) scrambled motion (SM), and (3) static condition. We used one-sample t-tests to examine neural responses selective to BM versus SM within each group, and two-sample t-tests to directly compare neural patterns to BM versus SM in schizophrenics versus controls. RESULTS: We found significant activation in the STS region when BM was contrasted with SM in both groups, with no significant difference between groups. On the contrary, significant activation in the medial prefrontal cortex (MPFC) and bilateral temporoparietal junction (TPJ) was found only in the control group. When we directly compared the two groups, the healthy controls showed significant greater activation in left MPFC and TPJ to BM versus SM than patients with schizophrenia. CONCLUSION: Our findings suggest that patients with schizophrenia show normal activation to biologically and socially relevant motion stimuli in the STS, but atypical activation in other regions of the social brain network, specifically MPFC and TPJ. Moreover, these results were not due to atypical processing of motion, suggesting that patients with schizophrenia lack in the recruitment of neural circuits needed for the visual perception of social cognition. FAU - Hashimoto, Naoki AU - Hashimoto N AD - Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan ; Child and Adolescent Psychiatry, Department of Psychiatry, University of California, San Francisco, CA, USA. FAU - Toyomaki, Atsuhito AU - Toyomaki A AD - Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan. FAU - Hirai, Masahiro AU - Hirai M AD - Center for Development of Advanced Medical Technology, Jichi Medical University, Yakushiji, Shimotsuke, Tochigi, Japan. FAU - Miyamoto, Tamaki AU - Miyamoto T AD - Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan. FAU - Narita, Hisashi AU - Narita H AD - Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan. FAU - Okubo, Ryo AU - Okubo R AD - Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan. FAU - Kusumi, Ichiro AU - Kusumi I AD - Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan. LA - eng PT - Journal Article DEP - 20141117 PL - New Zealand TA - Neuropsychiatr Dis Treat JT - Neuropsychiatric disease and treatment JID - 101240304 PMC - PMC4240192 OTO - NOTNLM OT - cognitive processing OT - mentalizing OT - social brain network OT - social cognition OT - theory of mind EDAT- 2014/12/09 06:00 MHDA- 2014/12/09 06:01 PMCR- 2014/11/17 CRDT- 2014/12/09 06:00 PHST- 2014/12/09 06:00 [entrez] PHST- 2014/12/09 06:00 [pubmed] PHST- 2014/12/09 06:01 [medline] PHST- 2014/11/17 00:00 [pmc-release] AID - ndt-10-2221 [pii] AID - 10.2147/NDT.S70074 [doi] PST - epublish SO - Neuropsychiatr Dis Treat. 2014 Nov 17;10:2221-30. doi: 10.2147/NDT.S70074. eCollection 2014.