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Ryan Smith

@rssmith.bsky.social
436 followers 218 following 70 posts

Associate Professor at the Laureate Institute for Brain Research. My lab focuses on computational neuroscience and psychiatry, emotion-cognition interactions, prospective planning, exploration, and interoception.

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Ryan Smith @rssmith.bsky.social · 13/08/2026
One interesting result was that, at the trial level, RL was better at predicting participants' win-stay choices while active inference was better at predicting their lose-switch choices (and all switch choices). Active inference was also a bit better at predicting when they chose the best option.
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Ryan Smith @rssmith.bsky.social · 25/05/2025
The groups also differed in scores on a cognitive reflectiveness test, and a mediation model suggested that differences in reflectiveness partially accounted for greater pruning in the methamphetamine users. The effect of anxiety induction on craving was also positively associated by pruning levels.
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Ryan Smith @rssmith.bsky.social · 25/05/2025
HCs and methamphetamine users completed an established multistep planning task. From certain starting positions, the optimal path required transitioning through a large loss. Unlike other model parameters (planning horizon, reward sensitivity), group differences were selective to aversive pruning.
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Ryan Smith @rssmith.bsky.social · 06/04/2025
A Bayesian (Kalman filter) learning model also revealed slower learning rates in anxious depression independent of anxiety induction.
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Ryan Smith @rssmith.bsky.social · 06/04/2025
Anxiety induction reduced directed (but not random) exploration in healthy individuals, but not in those diagnosed with anxious depression. Directed exploration was also associated with scores on a cognitive reflection test.
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Ryan Smith @rssmith.bsky.social · 06/04/2025
We combined the Horizon Task with a somatic (interoceptive) anxiety induction using breathing resistance. Both healthy individuals and those diagnosed with anxious depression participated (N=58 and 61, respectively).
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