Cochlear region and stimulation intensity systematically change human eCAP component parameters

Evidence

The amplitude of wave eV was larger than an acoustically evoked ABR amplitude, and latency which occurs approximately 3.6 ms after the onset of the stimulus is shorter because the electrical stimulus directly activates the neural pathway (Starr and Brackmann 1979 ; Pelizzone et al. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1451 (#expands, via linked claim)

Categorization

• XREF: connects to: Deconvolution reveals firing components invisible in raw eCAP waveforms — Dijk, Pim van, Physiology, Psychoacoustics and…, 2446; eCAP waveform morphology reflects auditory nerve health status; The late eCAP component likely reflects repeated neural firing, not two fibre subpopulations (+3 more)

Related

• Electrical cochlear stimulation produces faster, larger neural responses than acoustic stimulation (similarity 0.89)
• Electrically evoked brainstem responses are larger and faster than acoustic ones (similarity 0.84)
• Deconvolving the eCAP reveals two separate auditory nerve firing components. (similarity 0.84)
• Deconvolution reveals firing components invisible in raw eCAP waveforms (similarity 0.83)
• The late eCAP component likely reflects repeated neural firing, not two fibre subpopulations (similarity 0.83)
• Human cochlear-region differences alter electrically evoked compound action potential timing and width (similarity 0.83)
• Neural degeneration shifts eCAP firing-component scaling and latency in measurable ways. (similarity 0.82)
• Anodic and cathodic cochlear implant stimulation differ in efficiency between humans and animals (similarity 0.82)
• Human cochlear-implant eCAP studies use loudness-based limits unlike animal models (similarity 0.81)
• Electrically stimulated auditory nerve firing decomposes into two components detectable by deconvolution (similarity 0.81)
• Anodic stimulation is more effective in human implant users but less effective in animals (similarity 0.80)
• Electrically evoked ABRs have shorter latencies and larger amplitudes than acoustic ABRs (similarity 0.80)
• Action potential blocking can make louder cochlear implant stimuli evoke smaller responses (similarity 0.80)
• Anodic current outperforms cathodic current in human cochlear implant users at suprathreshold levels (similarity 0.80)
• Both anodic and cathodic stimulus phases can elicit auditory nerve responses (similarity 0.80)

Broader Connections

• Electrical cochlear stimulation produces faster, larger neural responses than acoustic stimulation #expands (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 1451
• Cochlear implant input-output responses can reverse polarity preference at high levels #expands (0.78)
• Anodic and cathodic cochlear implant stimulation differ in efficiency between humans and animals #expands (0.75)