PMID- 29897026 OWN - NLM STAT- MEDLINE DCOM- 20200514 LR - 20200514 IS - 1469-8978 (Electronic) IS - 0033-2917 (Linking) VI - 49 IP - 5 DP - 2019 Apr TI - Learning to trust: social feedback normalizes trust behavior in first-episode psychosis and clinical high risk. PG - 780-790 LID - 10.1017/S003329171800140X [doi] AB - BACKGROUND: Psychosis is characterized by problems in social functioning that exist well before illness onset, and in individuals at clinical high risk (CHR) for psychosis. Trust is an essential element for social interactions that is impaired in psychosis. In the trust game, chronic patients showed reduced baseline trust, impaired response to positive social feedback, and attenuated brain activation in reward and mentalizing areas. We investigated whether first-episode psychosis patients (FEP) and CHR show similar abnormalities in the neural and behavioral mechanisms underlying trust. METHODS: Twenty-two FEP, 17 CHR, and 43 healthy controls performed two trust games, with a cooperative and an unfair partner in the fMRI scanner. Region of interest analyses were performed on mentalizing and reward processing areas, during the investment and outcome phases of the games. RESULTS: Compared with healthy controls, FEP and CHR showed reduced baseline trust, but like controls, learned to trust in response to cooperative and unfair feedback. Symptom severity was not associated with baseline trust, however in FEP associated with reduced response to feedback. The only group differences in brain activation were that CHR recruited the temporo-parietal junction (TPJ) more than FEP and controls during investment in the unfair condition. This hyper-activation in CHR was associated with greater symptom severity. CONCLUSIONS: Reduced baseline trust may be associated with risk for psychotic illness, or generally with poor mental health. Feedback learning is still intact in CHR and FEP, as opposed to chronic patients. CHR however show distinct neural activation patterns of hyper-activation of the TPJ. FAU - Lemmers-Jansen, Imke L J AU - Lemmers-Jansen ILJ AD - Department of Educational and Family studies,Faculty of Behavioral and Movement Sciences, and Institute for Brain and Behavior Amsterdam,Vrije Universiteit Amsterdam,Van der Boechorststraat 1, 1081 BT Amsterdam,The Netherlands. FAU - Fett, Anne-Kathrin J AU - Fett AJ AD - Department of Psychology, City,University of London,Northampton Square,London EC1V 0HB,UK. FAU - Hanssen, Esther AU - Hanssen E AD - Department of Educational and Family studies,Faculty of Behavioral and Movement Sciences, and Institute for Brain and Behavior Amsterdam,Vrije Universiteit Amsterdam,Van der Boechorststraat 1, 1081 BT Amsterdam,The Netherlands. FAU - Veltman, Dick J AU - Veltman DJ AD - Department of Psychiatry,VU Medical Center,Van der Boechorststraat 7,1081 BT Amsterdam,The Netherlands. FAU - Krabbendam, Lydia AU - Krabbendam L AD - Department of Clinical, Neuro and Developmental Psychology,Faculty of Behavioral and Movement Sciences, and Institute for Brain and Behavior Amsterdam,Vrije Universiteit Amsterdam,Van der Boechorststraat 1, 1081 BT Amsterdam,The Netherlands. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180613 PL - England TA - Psychol Med JT - Psychological medicine JID - 1254142 SB - IM MH - Adolescent MH - Adult MH - Brain/*physiopathology MH - Brain Mapping/methods MH - Female MH - Games, Experimental MH - Humans MH - *Learning MH - Magnetic Resonance Imaging MH - Male MH - Psychotic Disorders/*physiopathology/psychology MH - Regression Analysis MH - Reward MH - Task Performance and Analysis MH - *Trust MH - Young Adult OTO - NOTNLM OT - CAARMS Comprehensive Assessment of At-Risk Mental States OT - CHR clinical high risk OT - FEP first-episode psychosis OT - PANSS Positive and Negative Syndrome Scale OT - ROI region of interest OT - TPJ temporo-parietal junction OT - WAIS Wechsler Adult Intelligence Scale OT - mPFC medial prefrontal cortex OT - Clinical high risk OT - fMRI OT - first-episode psychosis OT - social feedback OT - trust EDAT- 2018/06/14 06:00 MHDA- 2020/05/15 06:00 CRDT- 2018/06/14 06:00 PHST- 2018/06/14 06:00 [pubmed] PHST- 2020/05/15 06:00 [medline] PHST- 2018/06/14 06:00 [entrez] AID - S003329171800140X [pii] AID - 10.1017/S003329171800140X [doi] PST - ppublish SO - Psychol Med. 2019 Apr;49(5):780-790. doi: 10.1017/S003329171800140X. Epub 2018 Jun 13.