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. 2024 Jul;60(1):3812-3820.
doi: 10.1111/ejn.16381. Epub 2024 May 6.

Carrier-frequency specific omission-related neural activity in ordered sound sequences is independent of omission-predictability

Anne Hauswald  1   2 , Kaja Rosa Benz  1   2 , Thomas Hartmann  1   2 , Gianpaolo Demarchi  1   2 , Nathan Weisz  1   2   3
Affiliations

Carrier-frequency specific omission-related neural activity in ordered sound sequences is independent of omission-predictability

Anne Hauswald et al. Eur J Neurosci. 2024 Jul.

Abstract

Regularities in our surroundings lead to predictions about upcoming events. Previous research has shown that omitted sounds during otherwise regular tone sequences elicit frequency-specific neural activity related to the upcoming but omitted tone. We tested whether this neural response is depending on the unpredictability of the omission. Therefore, we recorded magnetencephalography (MEG) data while participants listened to ordered or random tone sequences with omissions occurring either ordered or randomly. Using multivariate pattern analysis shows that the frequency-specific neural pattern during omission within ordered tone sequences occurs independent of the regularity of the omissions. These results suggest that the auditory predictions based on sensory experiences are not immediately updated by violations of those expectations.

Keywords: MEG; MVPA; Markov tone sequences; decoding; prediction.

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