Published May 26, 2020
| Version v1
Journal article
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Anticipation-induced delta phase reset improves human olfactory perception
Creators
- 1. Northwestern University
- 2. Stanford University
- 3. University of Pennsylvania
- 4. University of Chicago
- 5. George Washington University
Description
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.
Data availability
All source data are available at https://github.com/zelanolab/PhaseResettingInOlfactoryAnticipation.git.
Files
journal.pbio.3000724.pdf
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Additional details
Identifiers
- DOI
- 10.1371/journal.pbio.3000724
- Other
- oai:uchicago.tind.io:6271
Funding
- National Institute on Deafness and Other Communication Disorders
- R00DC012803
- National Institute on Deafness and Other Communication Disorders
- R01DC016364