Hayden H. Bruce


Stoody, Tina M.

Committee Member

Bright, Kathryn E.

Committee Member

Weber, Jennifer E.


College of Natural and Health Sciences


University of Northern Colorado

Type of Resources


Place of Publication

Greeley (Colo.)


University of Northern Colorado

Date Created



87 pages

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Born digital


The purpose of this capstone research project was to investigate the consistency of waveform characteristics of the canine click evoked brainstem auditory evoked response (BAER) across multiple test sessions. Six canines were recruited to participate in the study. Brainstem auditory evoked response recordings were measured in each ear of the canines using a click stimulus at 102 dB peSPL, 82 dB peSPL and 62 dB peSPL. Canines included in the study were between the ages of one and seven to avoid both maturation and aging affects. Characteristics assessed throughout this study at each intensity level were absolute latencies of waves I, II, III and V, interpeak latencies of waves I-II, II-V, and I-V, amplitudes of waves I, II, III and V, wave V interaural differences at 102 dB peSPL, the lowest level wave V was observed, and the overall morphology of each BAER response. Results from this study indicated the BAER test was consistent across test sessions with respect to absolute and interpeak latencies, wave V interaural latency differences, and amplitudes. Overall waveform morphology was good for the highest stimulus intensity and varied from good to poor at lower intensity levels. The lowest level at which wave V was observed was consistent for the majority of canines in this study. Findings from this study suggested the canine click-evoked BAER is a consistent assessment tool that both veterinarians and audiologists can be confident in when determining the integrity of the canine auditory system.

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