Inferior colliculus electrical responses mirror acoustic response morphology

Evidence

The morphology of the response was similar for acoustic and electric stimulation and consisted of a first positive peak (P1) followed by a negative peak (N1) and a second positive peak (P2). The amplitude of the response was arbitrarily defined as the difference in voltage between the negative peak and the second positive peak. The response amplitude varied from about 20 to 600 μV depending on subjects and pulse shapes. The dynamic range, as defined by the difference between the maximum stimulation level and the minimum level that produced a visually detectable response ranged from about 3 to 18 dB, which compare well with usual values of dynamic range for individual CI electrodes. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2302

Categorization

• DEFINE: Defines the N1-P2 amplitude convention and the dynamic-range metric used throughout the study.
• corroborated: 3 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 2302
• XREF: connects to: Electrical cochlear stimulation produces faster, larger neural responses than acoustic stimulation — Dijk, Pim van, Physiology, Psychoacoustics and…, 1451; Frequency-domain analysis mirrors how the human ear processes sound — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 377

Broader Connections

• Electrical cochlear stimulation produces faster, larger neural responses than acoustic stimulation #expands (0.75) — Dijk, Pim van, Physiology, Psychoacoustics and…, 1451
• Frequency-domain analysis mirrors how the human ear processes sound #corroborates (0.70) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 377