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Predicting Attention-Shaping Response in People With Schizophrenia
Danielle M Beaudette1, James M Gold2, James Waltz2
1Indiana University-Purdue University Indianapolis, Indianapolis, Indiana.
The Journal of Nervous and Mental Disease
|December 14, 2020
Summary
Attention shaping helps schizophrenia patients improve focus, but prior reinforcement learning (RL) ability did not predict success. Lower baseline attention and RL ability predicted better outcomes, suggesting attention shaping benefits those with more severe impairments.
Area of Science:
- Cognitive psychology
- Clinical neuroscience
- Psychiatric rehabilitation
Background:
- Attentional impairments are common in schizophrenia, impacting learning during interventions.
- Attention shaping is a behavioral strategy to enhance attentiveness in individuals with schizophrenia.
- Reinforcement learning (RL) is hypothesized as the mechanism underlying attention shaping's effectiveness.
Purpose of the Study:
- To investigate whether pretreatment reinforcement learning (RL) performance predicts the degree of response to attention shaping in schizophrenia patients.
- To determine the relative contributions of RL ability and baseline attentiveness to attention shaping outcomes.
Main Methods:
- Assessed pretreatment reinforcement learning (RL) ability in individuals with schizophrenia.
- Measured baseline attentiveness levels.
- Tracked attentiveness changes during attention shaping interventions.
- Analyzed the predictive power of RL ability and baseline attentiveness on response to attention shaping.
Main Results:
- Contrary to hypotheses, lower pretreatment RL ability predicted a steeper attentiveness growth curve.
- Lower baseline attentiveness was a stronger predictor of response to attention shaping than RL ability.
- These factors accounted for 59% of the variance in response to attention shaping.
Conclusions:
- Attention shaping appears most effective for schizophrenia patients with lower baseline functioning and attentiveness.
- High RL ability may indicate a ceiling effect, limiting further improvement with attention shaping.
- The findings suggest that RL may not be the primary mechanism driving attention shaping, warranting exploration of alternative explanations.
