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Touchscreen response precision is sensitive to the explore/exploit tradeoff.
Dana Mueller1, Erin Giglio1, Cathy S Chen1
1Department of Psychology, University of Minnesota, Minneapolis MN 55455.
Biorxiv : the Preprint Server for Biology
|November 1, 2024
Summary
Mice exhibit more precise touchscreen actions during exploitation, indicating higher certainty. Motor precision is independently influenced by past rewards and sex, revealing links between cognition and movement.
Area of Science:
- Neuroscience
- Behavioral Science
- Decision Science
Background:
- The explore/exploit tradeoff is crucial for reward-guided decision making.
- Motor precision in perceptual tasks correlates with decision certainty, even without motor demands.
- Variables influencing motor precision and subjective certainty in reward-guided decisions remain unclear.
Purpose of the Study:
- To investigate factors shaping motor precision and subjective certainty during reward-guided decision making.
- To determine if explore/exploit state, reward history, or individual differences affect touchscreen interaction precision.
- To explore the utility of touchscreen tasks in revealing neural states linking cognition and movement.
Main Methods:
- Utilized touchscreen tasks across mice to measure choice selection and action precision.
- Parametrically controlled uncertainty and reward contingencies.
- Analyzed precision differences based on explore/exploit states, past rewards, and sex.
Main Results:
- Motor precision increased during exploit states compared to explore states, suggesting higher certainty.
- Exploit choice precision was enhanced independently of precision increases due to immediate past reward.
- Male mice demonstrated less precision than females, irrespective of the decision state.
Conclusions:
- Motor precision in reward-guided decision making increases with certainty during exploitation, independent of motor requirements.
- Touchscreen interaction precision is modulated by explore/exploit dynamics, reward history, and individual (sex-based) differences.
- Touchscreen tasks offer a valuable tool for uncovering latent neural states that integrate cognitive and motor processes across species.
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