An oscillator model better predicts cortical entrainment to music
Abstract
Previous work in humans has found rhythmic cortical activity while listening to rhythmic sounds such as speech or music. Whether this activity reflects oscillatory dynamics of a neural circuit or instead evoked responses to the rhythmic stimulus has been difficult to determine. Here, we devised a metric to tease apart the two hypotheses by analyzing phase lag across many stimulation rates. We test this phase concentration metric using numerical simulations and generate quantitative predictions to compare against recorded magnetoencephalography data. Both previously recorded and new data were better predicted by a model of oscillatory dynamics than evoked responses. This work, therefore, provides definitive evidence for the presence of an oscillatory dynamic in auditory cortex during processing of rhythmic stimuli.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 24, 2019
- Source ID
- 10.1073/pnas.1816414116
Entities
People
- Bijan Pesaran
- Dana Bevilacqua
- David Poeppel
- Keith B. Doelling
- M. Florencia Assaneo
Organizations
- Army Research Office
- Division of Graduate Education
- Max Planck Institute for Empirical Aesthetics
- National Institute on Deafness and Other Communication Disorders
- New York University