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. 2022 Jul 14;16:941534. doi: 10.3389/fnsys.2022.941534

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Copyright © 2022 Ehret and Romand.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Average ERP recorded from the head of a dolphin in response to a target tone. This tone had a duration of 300 ms (horizontal line above latency axis). It was followed by a second tone signaling conditioned access to a food reward. The ERP shows a prominent negativity peaking near 200 ms latency (N200) after tone onset, and a prominent positivity around 550 ms latency (P550). [Modified from Woods et al. (1986); their Figure 3.2 response to tone #3, target tone].