Studies of pulse-type gymnotiform electric fishes have suggested that the electric organ discharge waveforms (EODw) allow individuals to discriminate between conspecific and allospecific signals, but few have approached this experimentally. Here we implement a phase-locked playback technique for a syntopic species pair, Brachyhypopomus gauderio and Gymnotus omarorum. Both species respond to changes in stimulus waveform with a transitory reduction in the interpulse interval of their self-generated discharge, providing strong evidence of discrimination. We also document sustained rate changes in response to different EODws, which may suggest recognition of natural waveforms. This article is protected by copyright. All rights reserved.

中文翻译：

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一对产生脉冲的电鱼的波形判别

对脉冲型裸鳍电鱼的研究表明，电器官放电波形 (EODw) 允许个体区分同种和异种信号，但很少有人通过实验接近这一点。在这里，我们为同位物种对 Brachyhypopomus gauderio 和 Gymnotus omarorum 实施了锁相回放技术。这两个物种都对刺激波形的变化做出反应，其自发放电的脉冲间隔会暂时减少，这提供了强有力的歧视证据。我们还记录了响应不同 EODw 的持续速率变化，这可能表明对自然波形的识别。本文受版权保护。版权所有。