PMID- 29369669 OWN - NLM STAT- MEDLINE DCOM- 20190109 LR - 20200827 IS - 1939-1846 (Electronic) IS - 0021-843X (Print) IS - 0021-843X (Linking) VI - 127 IP - 1 DP - 2018 Jan TI - Social motivation in schizophrenia: The impact of oxytocin on vigor in the context of social and nonsocial reinforcement. PG - 116-128 LID - 10.1037/abn0000320 [doi] AB - Experiential negative symptoms-including diminished motivation-have a profound impact on functional outcomes in schizophrenia. Animal research suggests that abnormalities in dopaminergic regulation can negatively impact effort exertion, a translational model that has been applied to individuals with schizophrenia. Paradigms that assess effort-based decision making, for example, suggest less likelihood of choosing high effort tasks that are high in probability of success, and this preference varies with negative symptoms and impaired functioning. Although asociality is another well-documented component of experiential negative symptoms, it is unclear whether diminished motivation for monetary reward extends to the social domain. To test this question, the authors designed the Social Vigor Task (SVT)-a measure of effort exertion in the context of live social encouragement. They further examined the effect of oxytocin, a neuropeptide implicated in social behavior, on vigor. Forty-two individuals with schizophrenia and 43 healthy controls completed the SVT twice: once after intranasal administration of saline placebo and again after oxytocin. Both groups showed similar increases in vigor in response to social encouragement, suggesting effort in the social context is spared in schizophrenia. Group differences in the effect of social encouragement on vigor varied by point-based reward rate and trial length. Oxytocin did not increase vigor during social encouragement in either group. Within the schizophrenia group, clinician-rated passive social withdrawal, but not active social avoidance, was negatively associated with vigor. Results suggest that people with schizophrenia show normative levels of effort in the context of social encouragement; low approach motivation, however, relates to lower effort. (PsycINFO Database Record CI - (c) 2018 APA, all rights reserved). FAU - Fulford, Daniel AU - Fulford D AD - Departments of Occupational Therapy and Psychological & Brain Sciences, Boston University. FAU - Treadway, Michael AU - Treadway M AD - Department of Psychology, Emory University. FAU - Woolley, Joshua AU - Woolley J AD - San Francisco Veterans Affairs Medical Center. LA - eng GR - IK2 CX000758/CX/CSRD VA/United States PT - Journal Article PL - United States TA - J Abnorm Psychol JT - Journal of abnormal psychology JID - 0034461 RN - 50-56-6 (Oxytocin) SB - IM MH - Adult MH - Female MH - Humans MH - Interpersonal Relations MH - Male MH - Middle Aged MH - *Motivation MH - Oxytocin/administration & dosage/*physiology MH - Reward MH - Schizophrenia/*physiopathology MH - *Schizophrenic Psychology MH - *Social Behavior PMC - PMC7446385 MID - NIHMS1578797 EDAT- 2018/01/26 06:00 MHDA- 2019/01/10 06:00 PMCR- 2020/08/25 CRDT- 2018/01/26 06:00 PHST- 2018/01/26 06:00 [entrez] PHST- 2018/01/26 06:00 [pubmed] PHST- 2019/01/10 06:00 [medline] PHST- 2020/08/25 00:00 [pmc-release] AID - 2018-02683-005 [pii] AID - 10.1037/abn0000320 [doi] PST - ppublish SO - J Abnorm Psychol. 2018 Jan;127(1):116-128. doi: 10.1037/abn0000320.