The relationship between negative symptoms and cognitive functioning in patients with an at risk mental state for psychosis

Abstract

IntroductionNegative symptoms and cognitive impairments are both present in patients with an at risk mental state (ARMS) for psychosis and negatively affect functioning and outcome. According to previous studies in patients with first-episode psychosis, negative symptoms are negatively associated with cognitive functioning while positive symptoms do not seem to be associated. Yet, little is known about the specific relationship of negative symptoms and cognitive functioning in ARMS patients.ObjectiveTo evaluate, the relationship between negative symptoms and cognitive functioning in ARMS patients.MethodsData of 154 ARMS patients were collected within the prospective Basel early detection of psychosis (FePsy) study. Negative symptoms were assessed with the SANS, positive psychotic symptoms with the BPRS, cognitive functioning with an extensive neuropsychological test battery. Multiple regressions were applied and results were controlled for age and gender.ResultsRegression analyses showed a significant, negative association between negative but not positive psychotic symptoms and cognitive functioning, showing the strongest association with verbal fluency (see Fig. 1). However, results mainly did not withstand correction for multiple testing.ConclusionsThe association found between verbal fluency and negative symptoms may be indicative of an overlap between those constructs. Finally, verbal fluency might have a strong influence on the clinical impression of negative symptoms, especially on alogia.Disclosure of interestThe authors have not supplied their declaration of competing interest.