Optimal Movement Timing
Author Information
Author(s): Hudson Todd E., Maloney Laurence T., Landy Michael S., Friston Karl J.
Primary Institution: New York University
Hypothesis
How do humans plan movements considering temporal uncertainty?
Conclusion
Humans can nearly optimally compensate for their temporal uncertainty when planning movements.
Supporting Evidence
- Subjects compensated for both natural and imposed temporal uncertainty.
- The optimal model predicted movement times that maximized expected gain.
- Bayesian model comparisons favored the optimal model over sub-optimal models.
Takeaway
This study shows that when people move, they can figure out the best time to do it, even if they're not sure how long it will take.
Methodology
Participants reached for a target on a screen while facing penalties for timing errors, allowing researchers to analyze their movement planning.
Potential Biases
Potential biases may arise from the limited participant pool and the specific context of the task.
Limitations
The study involved a small number of participants and specific task conditions that may not generalize to all movement scenarios.
Participant Demographics
Five participants, including one author, from New York University.
Statistical Information
P-Value
p<0.05
Confidence Interval
[0.85:1.03]
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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