Cognitive deficits and functional outcome in schizophrenia

Key Points

• To review the nature and stability of cognitive deficits in schizophrenia, evaluate their relationship to real-world functional outcomes, and assess therapeutic approaches.
• Literature review of clinical and cognitive studies evaluating domains including attention, working memory, verbal learning, and executive functions in schizophrenia.
• Synthesis of pharmacological and behavioral intervention trials assessing cognitive malleability and associated functional changes.
• Moderate to severe cognitive deficits occur across multiple core domains, emerge prior to psychosis onset, and typically remain stable across the illness course.
• Cognitive impairment is the strongest and most consistent predictor of real-world functional outcomes across diverse patient samples.
• Pharmacological and behavioral treatments can modify cognitive deficits, though the degree to which these cognitive gains translate to meaningful everyday functional improvement remains under active investigation.