Anticipation-induced delta phase reset improves human olfactory perception

Arabkheradmand, Ghazaleh and Zhou, Guangyu and Noto, Torben and Yang, Qiaohan and Schuele, Stephan U. and Parvizi, Josef and Gottfried, Jay A. and Wu, Shasha and Rosenow, Joshua M. and Koubeissi, Mohamad Z. and Lane, Gregory and Zelano, Christina and Hanslmayr, Simon (2020) Anticipation-induced delta phase reset improves human olfactory perception. PLOS Biology, 18 (5). e3000724. ISSN 1545-7885

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Abstract

Anticipating an odor improves detection and perception, yet the underlying neural mechanisms of olfactory anticipation are not well understood. In this study, we used human intracranial electroencephalography (iEEG) to show that anticipation resets the phase of delta oscillations in piriform cortex prior to odor arrival. Anticipatory phase reset correlates with ensuing odor-evoked theta power and improvements in perceptual accuracy. These effects were consistently present in each individual subject and were not driven by potential confounds of pre-inhale motor preparation or power changes. Together, these findings suggest that states of anticipation enhance olfactory perception through phase resetting of delta oscillations in piriform cortex.

Item Type: Article
Subjects: Journal Eprints > Biological Science
Depositing User: Managing Editor
Date Deposited: 01 Feb 2023 07:00
Last Modified: 05 Jun 2024 09:34
URI: http://repository.journal4submission.com/id/eprint/1258

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