Affiliation:
1. Clinical Psychology and Psychotherapy, Universität Hamburg, Hamburg, Germany
Abstract
Abstract
Based on findings from cognitive science, it has been theorized that the reductions in motivation and goal-directed behavior in people with psychosis could stem from impaired episodic memory. In the current meta-analysis, we investigated this putative functional link between episodic memory deficits and negative symptoms. We hypothesized that episodic memory deficits in psychosis would be related to negative symptoms in general but would be more strongly related to amotivation than to reduced expressivity. We included 103 eligible studies (13,622 participants) in the analyses. Results revealed significant, moderate negative associations of episodic memory with negative symptoms in general (k = 103; r = −.23; z = −13.40; P ≤ .001; 95% CI [−.26; −.20]), with amotivation (k = 16; r = −.18; z = −6.6; P ≤ .001; 95% CI [−.23; −.13]) and with reduced expressivity (k = 15; r = −.18; z = −3.30; P ≤.001; 95% CI[−.29; −.07]). These associations were not moderated by sociodemographic characteristics, positive symptoms, depression, antipsychotic medication or type of negative symptom scale. Although these findings provide sound evidence for the association between episodic memory deficits and amotivation, the rather small magnitude and the unspecific pattern of this relationship also indicate that episodic memory deficits are unlikely to be the only factor relevant to amotivation. This implicates that future research should investigate episodic memory in conjunction with other factors that could account for the association of episodic memory deficits and amotivation in psychosis.
Publisher
Oxford University Press (OUP)
Subject
Psychiatry and Mental health
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献