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Poster Session B: Wednesday, August 13, 1:00 – 4:00 pm, de Brug & E‑Hall

Dynamics in the primary sensory, medial temporal and striatal regions during implicit learning of temporal regularity

Wei Tang¹, Zhenghan Qi²; ¹Indiana University, Bloomington, ²Northeastern University

Presenter: Wei Tang

Temporal regularities in sensory inputs can sharpen our perception of the input. How the brain develops sensitivity for temporally structured stimuli through statistical learning (SL) remains unknown. In this study, we investigate brain activities in the early visual, medial temporal and striatal regions during repeated exposure to a temporal structure embedded in sequential visual stimuli. In the late stage of learning, we observed increased sensitivity to stimulus category in V1, and such sensitivity was mirrored by activity in the entorhinal cortex. The entorhinal activity also became correlated with that of the nucleus accumbens towards the end of the task. These results reveal complementary roles of the above regions in the hierarchical processing for learning temporal regularity.

Topic Area: Memory, Spatial Cognition & Skill Learning

Extended Abstract: Full Text PDF