A half-wave-rectified-threshold spike model encodes both envelope and fine structure in one mechanism.
Evidence
Second, when thinking about pitch perception of unresolved complex tones in terms of interaction between envelope and fine structure, it appears that the limitation of phase locking is probably much less critical than when thinking in terms of fine structure only. In fact, it seems clear that there is no need to encode every phases of the signal to encode the most intense phases located nearby an envelope maximum. This explains that the simulation can extract a periodicity related to pitch when the carrier frequency is over 10 kHz (Fig. 3 ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 4660 (
#qualifies, via linked claim)
Categorization
- XREF: connects to: Phase-locking limits matter far less when envelope-fine-structure interaction encodes pitch — Dijk, Pim van, Physiology, Psychoacoustics and…, 4660; Envelope and temporal fine structure exist at three distinct processing levels — Dijk, Pim van, Physiology, Psychoacoustics and…, 794; Pooled across fibers, spike timing codes the stimulus period as a multiple (+5 more)
Related
- Phase-locking limits matter far less when envelope-fine-structure interaction encodes pitch (similarity 0.89)
- Neural information is encoded in the patterning of voltage spikes (similarity 0.85)
- Auditory spiketrain periodicities can encode both envelope and fine structure (similarity 0.85)
- Simulated spike trains encode pitch via envelope-fine-structure interaction periodicities (similarity 0.85)
- Stimulus envelope, not temporal fine structure, counts as temporal information (similarity 0.82)
- Periodicity cues for pitch split into fine-structure, envelope, and interaction periodicities (similarity 0.82)
- The temporal code mainly handles pitch at low frequencies where pitch is strong (similarity 0.82)
- Pitch perception combines place-based and timing-based neural analysis of complex tones (similarity 0.82)
- Spike generation depends on both envelope and fine structure signals (similarity 0.82)
- Low-frequency pitch judgments reflect temporal fine structure via neural phase locking (similarity 0.81)
- Envelope and fine structure are mathematically orthogonal but not perceptually independent (similarity 0.80)
- Pitch estimates depend on combined envelope-fine structure cues, not envelope alone. (similarity 0.80)
- Neuronal firing thresholds shape which pitch periodicities a system can detect (similarity 0.80)
- Temporal envelope suffices for speech while fine structure carries pitch information (similarity 0.80)
- Pitch can be coded by neuron firing rate matching the repetition frequency (similarity 0.80)
Broader Connections
- A threshold-spike autocorrelation model transforms auditory filter output into a periodic spiketrain.
#expands(0.85) - Stimulus envelope, not temporal fine structure, counts as temporal information
#contradicts(0.80) - Phase-locking limits matter far less when envelope-fine-structure interaction encodes pitch
#qualifies(0.78) — Dijk, Pim van, Physiology, Psychoacoustics and…, 4660 - Envelope and temporal fine structure exist at three distinct processing levels
#expands(0.75) — Dijk, Pim van, Physiology, Psychoacoustics and…, 794 - Pooled across fibers, spike timing codes the stimulus period as a multiple
#qualifies(0.72) - Pulse polarity effects on neural response differ significantly across pulse shapes
#qualifies(0.72) - A nerve-fiber threshold near 0.5 yields the most reliable pitch periodicity estimates
#expands(0.70)