Entrained phase-locking produces a scalar rate code for pitch in the brainstem.
Evidence
Here, simple properties of the early central auditory system are brought into focus and it is argued that the relevant representation is fundamentally different from autocorrelation-type schemes Ć la Licklider ( 1951 ). The key proposal is that entrained phase-locking (contracted to āentrackingā) generates a scalar rate code for pitch early in the brainstem. ā Dijk, Pim van, Physiology, Psychoacoustics andā¦, 4495 (
#expands, via linked claim)
Moreover, as the temporal delay between peaks of interest is rather longer than the delay between two adjacent peaks of the fine structure, such a mechanism would be much less constrained by the phase locking limitation of the auditory system. ā Dijk, Pim van, Physiology, Psychoacoustics andā¦, 4611 (
#complicates, via linked claim)
Categorization
- XREF: connects to: Pitch may be encoded by entrained phase-locking producing a rate code ā Dijk, Pim van, Physiology, Psychoacoustics andā¦, 4495; The midbrain converts temporal phase-locking codes into a mean firing-rate profile for speech. ā Dijk, Pim van, Physiology, Psychoacoustics andā¦, 5469; Envelope-peak-based pitch coding relaxes the phase-locking constraint on auditory processing ā Dijk, Pim van, Physiology, Psychoacoustics andā¦, 4611 (+10 more)
Broader Connections
- Pitch may be encoded by entrained phase-locking producing a rate code
#expands(0.96) ā Dijk, Pim van, Physiology, Psychoacoustics andā¦, 4495 - Brainstem entracking produces horizontal ābutteā rate-place profiles encoding pitch
#exemplifies(0.92) - Envelope-peak-based pitch coding relaxes the phase-locking constraint on auditory processing
#complicates(0.78) ā Dijk, Pim van, Physiology, Psychoacoustics andā¦, 4611 - Delay-based vector codes for pitch lack plausible brainstem mechanisms
#complicates(0.77) ā Dijk, Pim van, Physiology, Psychoacoustics andā¦, 4494