Implementation intention training for prospective memory in schizophrenia: A 3-month follow-up study

Area of Science:

• Cognitive Psychology
• Clinical Psychology
• Neuroscience

Background:

• Prospective memory (PM) deficits are common in schizophrenia, impacting daily functioning.
• Previous studies on implementation intentions (II) for PM in schizophrenia used brief interventions, leaving long-term effects unclear.

Purpose of the Study:

• To investigate the long-term effects of a 10-session II program on PM performance, social functioning, and functional capacity in schizophrenia patients.
• To assess the transfer effects of II training on real-world functional abilities.

Main Methods:

• Schizophrenia patients (n=42) were randomized into an II training group (n=21) or treatment as usual (TAU) group (n=21).
• The II group received training in verbal and imagery components of II, applied to daily life.
• PM performance was assessed using computer-based tasks and a daily life task (scheduled phone call). Functional capacity and working ability were also evaluated.

Main Results:

• The II group demonstrated significantly better performance on PM tasks immediately after training and at a 3-month follow-up compared to the TAU group.
• Participants in the II group showed improved working ability post-treatment.
• The study observed lasting beneficial effects of II on PM and transfer effects on functional capacity.

Conclusions:

• A 10-session II intervention program can lead to sustained improvements in prospective memory in schizophrenia patients.
• II training demonstrates significant transfer effects, enhancing functional capacity and working ability in individuals with schizophrenia.
• Implementation intentions represent a promising therapeutic strategy for addressing cognitive and functional deficits in schizophrenia.