This study measured the effect of emotional states on lexical decision task performance and investigated which underlying components (physiological, attentional orienting, executive, lexical, and/or strategic) are affected. We did this by assessing participants’ performance on a lexical decision task, which they completed before and after an emotional state induction task. The sequence effect, usually produced when participants repeat a task, was significantly smaller in participants who had received one of the three emotion inductions (happiness, sadness, embarrassment) than in control group participants (neutral induction). Using the diffusion model (Ratcliff, 1978) to resolve the data into meaningful parameters that correspond to specific psychological components, we found that emotion induction only modulated the parameter reflecting the physiological and/or attentional orienting components, whereas the executive, lexical, and strategic components were not altered. These results suggest that emotional states have an impact on the low-level mechanisms underlying mental chronometric tasks.

中文翻译：

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情绪在词汇决策任务中的影响

这项研究测量了情绪状态对词汇决策任务表现的影响，并调查了哪些潜在组成部分（生理、注意力定向、执行、词汇和/或战略）受到影响。我们通过评估参与者在词汇决策任务中的表现来做到这一点，他们在情绪状态诱导任务之前和之后完成了这项任务。通常在参与者重复一项任务时产生的序列效应，在接受三种情绪诱导（快乐、悲伤、尴尬）之一的参与者中比对照组参与者（中性诱导）显着更小。使用扩散模型 (Ratcliff, 1978) 将数据解析为与特定心理成分相对应的有意义的参数，我们发现情绪诱导仅调节反映生理和/或注意力定向成分的参数，而执行、词汇和战略成分没有改变。这些结果表明情绪状态对心理计时任务的底层机制有影响。