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Brightness versus darkness: The influence of stimulus intensity on the distractor-response binding effect
Acta Psychologica ( IF 2.1 ) Pub Date : 2020-12-11 , DOI: 10.1016/j.actpsy.2020.103224
Ruth Laub , Christian Frings

The intensity of a stimulus has been found to have a distinct impact upon response processes (e.g., response speed, response force, & response selection). For instance, reaction times are faster to bright than to dim stimuli (e.g., Kohfeld, 1971). In the present study, we investigated the possible influence of stimulus intensity on binding processes. According to binding theories, stimulus and response features are integrated together in short-lived memory traces, called event files (Hommel, 1998). Any re-encounter with one of these integrated features leads to the automatic retrieval of the previously constructed event file and thus of the response. Thereby bindings between stimuli (relevant and irrelevant) and responses have a direct impact on behavior. In the present experiment, we presented distractors with increasing stimulus intensity and found that intensity did exert an influence on binding processes. However, our results suggest that distractor intensity per se has no direct influence on the binding effect (the more intense a distractor is, the larger the binding effect), but that distractor intensity has an indirect effect on binding via grouping due to similarity between target and distractor intensity.



中文翻译:

亮度与黑暗:刺激强度对干扰物-反应结合效应的影响

已经发现刺激的强度对响应过程(例如,响应速度,响应力和响应选择)具有明显的影响。例如,明亮的反应要快于暗淡的刺激(例如,Kohfeld,1971)。在本研究中,我们研究了刺激强度对结合过程的可能影响。根据具有约束力的理论,刺激和响应功能被整合到了短暂的记忆轨迹中,称为事件文件(Hommel,1998)。具有这些集成功能之一的任何重新遇到都将导致自动检索先前构建的事件文件,从而自动检索响应。因此,刺激(相关的和无关的)与反应之间的结合对行为有直接影响。在目前的实验中 我们介绍了干扰物刺激强度的增加,发现强度确实对结合过程有影响。然而,我们的结果表明,干扰物强度本身对结合效果没有直接影响(干扰物越强,结合效果越大),但是由于靶标之间的相似性,干扰物强度通过分组对结合具有间接影响。和干扰强度。

更新日期:2020-12-11
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