Whistler ws1065 attenuate loud station2/15/2023 ![]() The dolphin failed to recognize sounds that were frequency transposed by plus or minus ½ octaves. The dolphin’s ability to correctly match objects to sounds was robust to changes in amplitude with only a minor decrement in performance for short durations. For comparison purposes, 30 human participants completed an identical task with the same sounds, objects, and training procedure. The sounds were then transformed by amplitude, duration, or frequency transposition while still preserving the frequency contour of each sound. The dolphin was first trained to select a specific object (object A) in response to a specific sound (sound A) for a total of three object-sound associations. Here we tested a bottlenose dolphin’s ( Tursiops truncatus) ability to recognize frequency modulated whistle-like sounds using a three alternative matching-to-sample paradigm. Bottlenose dolphins ( Tursiops truncatus) use the frequency contour of whistles produced by conspecifics for individual recognition. ![]()
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