Intensity Effect on Latency and Interval of Human BAER

Abstract

Liu XY, Jiang ZD. Intensity effect on latency and interval of human BAER. Acta Otolaryngol (Stockh) 1991; 111: 477-484.

Intensity effect on wave latency and interval (IPI) in brainstem auditory evoked responses (BAER) from birth to adulthood was investigated. the L-I functions were slightly steeper in younger groups than in older groups, which was associated with age-related difference in the absolute latencies. Wave I latency in most age groups exhibited two “transitional” responses: one at 70 dB HL or, sometimes, at 60 dB HL and the other mostly at 20 dB HL. As click intensity decreased, the I-III IPI tended to decrease slightly while the HI-V IPI tended to increase slightly in most age groups. Since the I-V IPI was constant at various intensities which could be attributed to a slight change in the morphology of wave III with altering intensity.

Key Words:

• brainstem auditory evoked responses
• Development
• Auditory
• stimulus intensity
• children