Feasibility and Preliminary Outcomes of Web-Based Cognitive Remediation Therapy in Psychiatric Inpatients: A Pilot Pre-Post Study Using the MATRICS Consensus Cognitive Battery

Cognitive impairments are a core feature of psychotic disorders and are strongly associated with long-term functional disability. Although Cognitive Remediation Therapy (CRT) is an evidence-based intervention for improving cognition in psychosis, its feasibility and preliminary effects in acute inpatient settings—particularly using web-based platforms—remain underexplored. This single-arm, pre–post pilot study evaluated the feasibility of delivering a web-based CRT program and examined preliminary cognitive outcomes in a secure psychiatric inpatient facility. Thirteen inpatients with psychotic and non-psychotic diagnoses completed a 15-week intervention comprising twice-weekly sessions that included adaptive computerized CRT exercises (Happy Neuron Pro) and therapist-led bridging discussions focused on metacognitive reflection and functional application. Cognitive performance was assessed pre- and post-intervention using the MATRICS Consensus Cognitive Battery. All participants completed the study with no withdrawals or adverse events, attending a mean of 27.77 of 30 sessions (93.0%). Pre–post improvements were observed in processing speed, verbal learning, and overall composite cognition, with large within-sample effect sizes that remained robust in sensitivity analyses. Exploratory analyses suggested potential associations between sex, history of self-harm, and cognitive change, though these findings require cautious interpretation. Findings support the feasibility of inpatient web-based CRT and provide preliminary cognitive effect-size estimates. Given the single-arm design and absence of systematic medication monitoring, results should be interpreted as exploratory signals warranting controlled validation. Overall, findings support the feasibility of inpatient web-based CRT and provide preliminary signals of cognitive benefit, warranting evaluation in larger controlled studies.