Effect of high-pass filtering on the neonatal auditory brainstem response to air- and bone-conducted clicks

J Speech Hear Res. 1994 Apr;37(2):475-9. doi: 10.1044/jshr.3702.475.

Abstract

The effect of standard high-pass analog filtering on the neonatal auditory brainstem response (ABR) to air- and bone-conducted clicks at low intensity screening levels was investigated. Simultaneous three channel recorded ABRs were obtained from 20 neonates with filter settings of 30-3000, 100-3000, and 150-3000 Hz at intensity levels of 20, 30, and 40 dB nHL. Statistically significant reductions in wave V amplitude and decreases in wave V latency were observed for both transducers across all three low level stimulus intensities with the progressive increase in the high-pass filter cutoff (p < .05). These data support the advocacy of less restrictive high-pass filtering (e.g., 30 Hz) for neonatal and infant ABR screening to air- and bone-conducted clicks.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Auditory Perception* / physiology
  • Bone Conduction*
  • Evoked Potentials, Auditory, Brain Stem / physiology*
  • Hearing* / physiology
  • Humans
  • Infant, Newborn