Krejtz Krzysztof, Żurawska Justyna, Duchowski Andrew T, Wichary Szymon
Institute of Psychology, SWPS University of Social Sciences and Humanities, Warsaw, Poland.
School of Computing, Clemson University, Clemson, SC, USA.
J Eye Mov Res. 2020 May 17;13(5). doi: 10.16910/jemr.13.5.2.
A large body of literature documents the sensitivity of pupil response to cognitive load (1)and emotional arousal (2). Recent empirical evidence also showed that microsaccade characteristics and dynamics can be modulated by mental fatigue and cognitive load (3). Very little is known about the sensitivity of microsaccadic characteristics to emotional arousal. The present paper demonstrates in a controlled experiment pupillary and microsaccadic responses to information processing during multi-attribute decision making under affective priming. Twenty-one psychology students were randomly assigned into three affective priming conditions (neutral, aversive, and erotic). Participants were tasked to make several discriminative decisions based on acquired cues. In line with the expectations, results showed microsaccadic rate inhibition and pupillary dilation depending on cognitive effort (number of acquired cues) prior to decision. These effects were moderated by affective priming. Aversivepriming strengthened pupillary and microsaccadic response to information processing effort.In general, results suggest that pupillary response is more biased by affective priming than microsaccadic rate. The results are discussed in the light of neuropsychological mechanisms of pupillary and microsaccadic behavior generation.
大量文献记载了瞳孔反应对认知负荷（1）和情绪唤醒（2）的敏感性。最近的实证证据还表明，微眼跳的特征和动态可以受到精神疲劳和认知负荷的调节（3）。关于微眼跳特征对情绪唤醒的敏感性，人们所知甚少。本文通过一项对照实验，展示了在情感启动下多属性决策过程中，瞳孔和微眼跳对信息处理的反应。21名心理学专业学生被随机分配到三种情感启动条件下（中性、厌恶和色情）。参与者的任务是根据获取的线索做出若干判别决策。与预期一致，结果显示，微眼跳频率受到抑制，瞳孔扩张，这取决于决策前的认知努力（获取线索的数量）。这些效应受到情感启动的调节。厌恶启动增强了瞳孔和微眼跳对信息处理努力的反应。总体而言，结果表明，与微眼跳频率相比，瞳孔反应受情感启动的影响更大。本文根据瞳孔和微眼跳行为产生的神经心理学机制对结果进行了讨论。
