Digital Mind 🧠

🪵 The Threshold

Faster-fluctuating sounds trigger less cochlear compression, trading sensitivity for better dynamic encoding

Properties2
tagsja-picks, causal_relationships, trade, corroborated, xref, category/causal-relationships
aliases@van_dijk_physiology_2016, loc. 3637

2 min read

Faster-fluctuating sounds trigger less cochlear compression, trading sensitivity for better dynamic encoding

Evidence

The observed decreases in envelope gain and in gain peakedness with increasing beat rate act synergistically to reduce the amount of compression exhibited in the BM response envelopes at high beat rates. This “linearization” is illustrated directly in Fig. 3 by plotting the response envelopes as a function of the instantaneous intensity of the beating stimulus. … One consequence of this linearization is that BM’s response dynamics can actually enhance the encoding of dynamic stimuli, within certain limits. However, this “enhancement” comes at the price of reduced overall sensitivity. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3637

Categorization

  • corroborated: 2 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 3637
  • XREF: connects to: Single auditory neurons encode only a narrow 20-40 dB dynamic range — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 785; Psychoacoustic tuning curves directly reflect cochlear mechanical processing. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 223; Cochlear compression delay implies automatic gain control circuitry — Dijk, Pim van, Physiology, Psychoacoustics and…, 3659 (+10 more)

Broader Connections

✉️

Backlinks