Abstract：
According to the Multiple Arousal Theory, electrodermal activity (EDA) is not uniform across the body. However, the psychological meaning of a left or right-sided EDA dominance is still not clear. We explored EDA lateral asymmetry as a psychophysiological marker of optimistic and pessimistic attributional style regarding success and failure in a darts competition. Bilateral EDA pattern of 230 throws of a competing pair was measured by Obimon EDA including accelerometer measurements of movements. First, we confirmed that lateral asymmetry can be measured reliably based on EDA data from both wrists. Second, we assessed attributional styles related to lateral asymmetry based on 80 individual throws. We recorded participants\' expectations regarding their upcoming performance, and their attribution of success and failure based on Seligman\'s definition as optimist (internal cause attributed to success, or external cause ascribed to failure) or pessimist. The ratio of optimist and pessimist attributions was significantly different for throws with right or left-sided EDA dominance (p = 0.001). Optimistic attribution characterized 84% of right dominant, while pessimist 63% of left-dominant EDA during throws. We replicated these findings on 50 throws from 10 more individuals (p = 0.034). All individuals were right-handed. We conclude that wrist EDA can be reliably measured during physical movements, such as in a darts game. Lateral EDA asymmetry is a consistent psychophysiological marker of the attitude toward success and failure in a competitive setting, suggesting that lateral asymmetry of emotional arousal may serve as a novel psychophysiological biomarker for attribution style. Results underlie the psychophysiological relevance of bilateral arousal assessment and provide evidence-based verification for the Multiple Arousal Theory.
摘要：
根据多重唤醒理论，皮肤电活动（EDA）在整个身体是不均匀的。然而,左或右EDA优势的心理含义仍然不清楚。我们探索了EDA横向不对称性，将其作为关于飞镖比赛中成功和失败的乐观和悲观归因风格的心理生理标志。由ObimonEDA测量了230个竞争对的双边EDA模式，包括运动的加速度计测量。首先,我们证实,基于来自两个手腕的EDA数据,可以可靠地测量侧向不对称性.第二,我们基于80次个人投掷评估了与横向不对称相关的归因风格.我们记录了参与者对他们即将到来的表现的期望，以及他们对成功和失败的归因，基于塞利格曼对乐观主义者的定义(归因于成功的内部原因，或归因于失败的外部原因)或悲观主义者。对于具有右侧或左侧EDA优势的投掷，乐观主义者和悲观主义者归因的比率显着不同（p=0.001）。乐观归因的特征是84%的权利占主导地位，而悲观主义者在罚球过程中占63%的左占优势的EDA。我们在另外10个人的50次投掷中复制了这些发现(p=0.034)。每个人都是右撇子。我们得出的结论是，在身体运动过程中可以可靠地测量手腕EDA，例如在飞镖游戏中。横向EDA不对称性是在竞争环境中对成功和失败的态度的一致心理生理标志，这表明情绪唤醒的横向不对称性可能是一种新的归因方式的心理生理生物标志物。结果是双侧唤醒评估的心理生理相关性的基础，并为多重唤醒理论提供了基于证据的验证。
