Dewey John A, Knoblich Günther
Department of Cognitive Science, Central European University, Budapest, Hungary.
PLoS One. 2014 Oct 16;9(10):e110118. doi: 10.1371/journal.pone.0110118. eCollection 2014.
The sense of agency (SoA) refers to perceived causality of the self, i.e. the feeling of causing something to happen. The SoA has been probed using a variety of explicit and implicit measures. Explicit measures include rating scales and questionnaires. Implicit measures, which include sensory attenuation and temporal binding, use perceptual differences between self- and externally generated stimuli as measures of the SoA. In the present study, we investigated whether the different measures tap into the same self-attribution processes by determining whether individual differences on implicit and explicit measures of SoA are correlated. Participants performed tasks in which they triggered tones via key presses (operant condition) or passively listened to tones triggered by a computer (observational condition). We replicated previously reported effects of sensory attenuation and temporal binding. Surprisingly the two implicit measures of SoA were not significantly correlated with each other, nor did they correlate with the explicit measures of SoA. Our results suggest that some explicit and implicit measures of the SoA may tap into different processes.
能动感（SoA）指的是对自我因果关系的感知，即引发某事发生的感觉。人们使用各种显性和隐性测量方法对能动感进行了探究。显性测量方法包括评定量表和问卷。隐性测量方法包括感觉衰减和时间绑定，它利用自我产生的刺激和外部产生的刺激之间的感知差异作为能动感的测量指标。在本研究中，我们通过确定能动感的隐性和显性测量指标上的个体差异是否相关，来调查不同的测量方法是否涉及相同的自我归因过程。参与者执行任务，在任务中他们通过按键触发音调（操作条件）或被动聆听由计算机触发的音调（观察条件）。我们重复了先前报道的感觉衰减和时间绑定效应。令人惊讶的是，能动感的两种隐性测量指标彼此之间没有显著相关性，它们与能动感的显性测量指标也没有相关性。我们的结果表明，能动感的一些显性和隐性测量方法可能涉及不同的过程。
