Brain signatures of a multiscale process of sequence learning in humans.

ABSTRACT: Extracting the temporal structure of sequences of events is crucial for perception, decision-making, and language processing. Here, we investigate the mechanisms by which the brain acquires knowledge of sequences and the possibility that successive brain responses reflect the progressive extraction of sequence statistics at different timescales. We measured brain activity using magnetoencephalography in humans exposed to auditory sequences with various statistical regularities, and we modeled this activity as theoretical surprise levels using several learning models. Successive brain waves related to different types of statistical inferences. Early post-stimulus brain waves denoted a sensitivity to a simple statistic, the frequency of items estimated over a long timescale (habituation). Mi

SUBMITTER: Maheu M 

PROVIDER: S-EPMC6361584 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature