EEG phase-modulation response amplitude depends jointly on rate and phase size
Evidence
A three-way non-parametric repeated measures ANOVA with factors of electrode position (left or right mastoid), IPM rate, and IPD revealed that factors IPM rate (p < 0.001), IPD (p < 0.001) as well as the interaction between IPM rate and IPD (p = 0.01) were significant. Responses obtained at 6.8 Hz IPM rate were maximal for IPDs spanning ±45–±90°, whereas responses obtained at 13.4 Hz IPM rate increased monotonically with increasing IPD. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2965
Categorization
Category: Causal Relationships
- QUESTION: Interesting rate-dependence pattern: mid-rate response peaks at moderate IPDs while fast-rate rises monotonically. Could warrant follow-up reading on underlying mechanisms.
Related
- The best interaural phase deviation for evoking neural responses depends on modulation rate (similarity 0.83)
- Slow IPD transitions evoke a classic P1-N1-P2 auditory evoked response in the EEG (similarity 0.80)
- The brain modulates spatial-hearing responses into a steady-state following response to periodic IPD switches (similarity 0.79)
- Abrupt interaural phase changes evoke P1-N1-P2 cortical responses (similarity 0.79)
- Slow IPM sweeps evoke transient P1-N1-P2 responses while faster rates evoke steady-state following responses. (similarity 0.79)