AUDITORY BRAIN-STEM RESPONSE IN TAMMAR WALLABY (MACROPUS-EUGENII)

Auditory brainstem responses (ABR) elicited by click and tonal stimuli were recorded from the tammar wallaby (Macropus eugenii), a marsupial mammal. The morphology, threshold, amplitude, and latency of ABRs rec orded in the tammar wallaby are similar to those of other marsupials a nd mammals used in auditory research, including humans. Thresholds det ermined by an algorithm employing cross-correlation and by conventiona l visual detection methods were comparable. The findings from this stu dy indicate that tammar wallaby is a suitable model for auditory resea rch and that algorithms employing cross-correlation are useful for det ection of the ABR waveform.