Related Experiment Video
Updated: Aug 27, 2025

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique
Published on: September 7, 2022
Auditory oddball responses in Tursiops truncatus
Matt D Schalles1, Jason Mulsow2, Dorian S Houser2
1Neuroscience Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
Abstract:
Two previous studies suggest that bottlenose dolphins exhibit an "oddball" auditory evoked potential (AEP) to stimulus trains where one of two stimuli has a low probability of occurrence relative to another. However, they reported oddball AEPs at widely different latency ranges (50 vs 500 ms). The present work revisited this experiment in a single dolphin to report the AEPs in response to two tones each assigned probabilities of 0.2, 0.8, and 1 across sessions. The AEP was further isolated from background EEG using independent component analysis, and showed condition effects in the 40-60 ms latency range.
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