Lajoie MP, Gilbert E, Rouleau N. Effect of non-pharmacological interventions on source memory processes in the early course of psychosis: A systematic review.
Early Interv Psychiatry 2021;
15:219-233. [PMID:
32141226 DOI:
10.1111/eip.12951]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 12/20/2019] [Accepted: 01/27/2020] [Indexed: 12/29/2022]
Abstract
UNLABELLED
People with a psychotic disorder suffer from major cognitive impairments which prevent their functional recovery. Source memory impairments have been shown to be associated with psychotic symptoms and even to precede their onset. Source memory has thus been hypothesized as a cognitive precursor of psychosis. However, few interventions targeting source memory are included in current therapeutic approaches for early psychosis.
AIM
This systematic review aimed to identify non-pharmacological interventions for early psychosis which have impacted source memory processes.
METHODS
Studies were selected from nine databases when they included: (a) a non-pharmacological intervention involving a sample of patients with early-onset psychotic disorder or subclinical psychotic symptoms; and (b) effects on source memory processes, measured directly or inferred through an episodic memory task.
RESULTS
Thirteen studies were identified, including two cognitive remediation programs and one repetitive transcranial magnetic stimulation treatment that reported beneficial effects on source memory.
CONCLUSIONS
Relevant intervention strategies for source memory impairments were identified. This review points up a need to further develop interventions targeting theoretically defined source memory concepts and assess their effects with specific and valid tasks. Recommendations regarding underlying mechanisms which could have a beneficial impact on source memory may provide guidance for the future development of early psychosis interventions.
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