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Anticipation-induced delta phase reset improves human olfactory perception

PLoS Biology, ISSN: 1545-7885, Vol: 18, Issue: 5, Page: e3000724
2020
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Article 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.

Bibliographic Details

http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85085539358&origin=inward; http://dx.doi.org/10.1371/journal.pbio.3000724; http://www.ncbi.nlm.nih.gov/pubmed/32453719; https://dx.plos.org/10.1371/journal.pbio.3000724.g002; http://dx.doi.org/10.1371/journal.pbio.3000724.g002; https://dx.plos.org/10.1371/journal.pbio.3000724.g006; http://dx.doi.org/10.1371/journal.pbio.3000724.g006; https://dx.plos.org/10.1371/journal.pbio.3000724.g005; http://dx.doi.org/10.1371/journal.pbio.3000724.g005; https://dx.plos.org/10.1371/journal.pbio.3000724.g004; http://dx.doi.org/10.1371/journal.pbio.3000724.g004; https://dx.plos.org/10.1371/journal.pbio.3000724; https://dx.plos.org/10.1371/journal.pbio.3000724.g001; http://dx.doi.org/10.1371/journal.pbio.3000724.g001; https://dx.plos.org/10.1371/journal.pbio.3000724.g003; http://dx.doi.org/10.1371/journal.pbio.3000724.g003; https://dx.plos.org/10.1371/journal.pbio.3000724.t001; http://dx.doi.org/10.1371/journal.pbio.3000724.t001; https://hsrc.himmelfarb.gwu.edu/smhs_neuro_facpubs/955; https://hsrc.himmelfarb.gwu.edu/cgi/viewcontent.cgi?article=1957&context=smhs_neuro_facpubs; https://dx.doi.org/10.1371/journal.pbio.3000724.g005; https://journals.plos.org/plosbiology/article/figure?id=10.1371/journal.pbio.3000724.g005; https://dx.doi.org/10.1371/journal.pbio.3000724.g006; https://journals.plos.org/plosbiology/article/figure?id=10.1371/journal.pbio.3000724.g006; https://dx.doi.org/10.1371/journal.pbio.3000724.t001; https://journals.plos.org/plosbiology/article/figure?id=10.1371/journal.pbio.3000724.t001; https://dx.doi.org/10.1371/journal.pbio.3000724; https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3000724; https://dx.doi.org/10.1371/journal.pbio.3000724.g002; https://journals.plos.org/plosbiology/article/figure?id=10.1371/journal.pbio.3000724.g002; https://dx.doi.org/10.1371/journal.pbio.3000724.g003; https://journals.plos.org/plosbiology/article/figure?id=10.1371/journal.pbio.3000724.g003; https://dx.doi.org/10.1371/journal.pbio.3000724.g004; https://journals.plos.org/plosbiology/article/figure?id=10.1371/journal.pbio.3000724.g004; https://dx.doi.org/10.1371/journal.pbio.3000724.g001; https://journals.plos.org/plosbiology/article/figure?id=10.1371/journal.pbio.3000724.g001; https://journals.plos.org/plosbiology/article/file?id=10.1371/journal.pbio.3000724&type=printable

Ghazaleh Arabkheradmand; Guangyu Zhou; Torben Noto; Qiaohan Yang; Stephan U. Schuele; Josef Parvizi; Jay A. Gottfried; Shasha Wu; Joshua M. Rosenow; Mohamad Z. Koubeissi; Gregory Lane; Christina Zelano; Simon Hanslmayr

Public Library of Science (PLoS)

Neuroscience; Biochemistry, Genetics and Molecular Biology; Immunology and Microbiology; Agricultural and Biological Sciences

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