Unpredictability of the “when” influences prediction error processing of the “what” and “where”

Vera Tsogli, Sebastian Jentschke and Stefan Koelsch

PLOS ONE, 2022, vol. 17, issue 2, 1-19

Abstract: The capability to establish accurate predictions is an integral part of learning. Whether predictions about different dimensions of a stimulus interact with each other, and whether such an interaction affects learning, has remained elusive. We conducted a statistical learning study with EEG (electroencephalography), where a stream of consecutive sound triplets was presented with deviants that were either: (a) statistical, depending on the triplet ending probability, (b) physical, due to a change in sound location or (c) double deviants, i.e. a combination of the two. We manipulated the predictability of stimulus-onset by using random stimulus-onset asynchronies. Temporal unpredictability due to random onsets reduced the neurophysiological responses to statistical and location deviants, as indexed by the statistical mismatch negativity (sMMN) and the location MMN. Our results demonstrate that the predictability of one stimulus attribute influences the processing of prediction error signals of other stimulus attributes, and thus also learning of those attributes.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0263373

DOI: 10.1371/journal.pone.0263373

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