Successful human interaction relies on people's ability to differentiate between the sensory consequences of their own and others' actions. Research in solo action contexts has identified sensory attenuation, that is, the selective perceptual or neural dampening of the sensory consequences of self-produced actions, as a potential marker of the distinction between self- and externally produced sensory consequences. However, very little research has examined whether sensory attenuation distinguishes self- from partner-produced sensory consequences in joint action contexts. The current study examined whether sensory attenuation of the auditory N1 or P2 ERPs distinguishes self- from partner-produced tones when pairs of people coordinate their actions to produce tone sequences that match a metronome pace. We did not find evidence of auditory N1 attenuation for either self- or partner-produced tones. Instead, the auditory P2 was attenuated for self-produced tones compared to partner-produced tones within the joint action. These findings indicate that self-specific attenuation of the auditory P2 differentiates the sensory consequences of one's own from others' actions during joint action. These findings also corroborate recent evidence that N1 attenuation may be driven by general rather than action-specific processes and support a recently proposed functional dissociation between auditory N1 and P2 attenuation.

成功的人类互动依赖于人们区分自己和他人行为的感官结果的能力。对单独行动环境的研究已经确定了感觉衰减，即自我产生的行为的感觉结果的选择性知觉或神经抑制，作为区分自我和外部产生的感觉结果的潜在标志。然而，很少有研究检查感觉衰减是否在联合行动环境中区分自我和合作伙伴产生的感觉结果。当前的研究检查了当成对的人协调他们的动作以产生与节拍器速度匹配的音调序列时，听觉 N1 或 P2 ERP 的感觉衰减是否区分了自我和伙伴产生的音调。对于自发或合作伙伴产生的音调，我们没有发现听觉 N1 衰减的证据。相反，与联合动作中合作伙伴产生的音调相比，听觉 P2 因自发音调而衰减。这些发现表明，在联合行动期间，听觉 P2 的自我特定衰减将自己的感官结果与他人的行为区分开来。这些发现也证实了最近的证据，即 N1 衰减可能是由一般而不是特定于动作的过程驱动的，并支持最近提出的听觉 N1 和 P2 衰减之间的功能分离。这些发现表明，在联合行动期间，听觉 P2 的自我特定衰减将自己的感官结果与他人的行为区分开来。这些发现也证实了最近的证据，即 N1 衰减可能是由一般而不是特定于动作的过程驱动的，并支持最近提出的听觉 N1 和 P2 衰减之间的功能分离。这些发现表明，在联合行动期间，听觉 P2 的自我特定衰减将自己的感官结果与他人的行为区分开来。这些发现也证实了最近的证据，即 N1 衰减可能是由一般而不是特定于动作的过程驱动的，并支持最近提出的听觉 N1 和 P2 衰减之间的功能分离。