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首页> 外文期刊>International journal of psychophysiology: official journal of the International Organization of Psychophysiology >Level of interest in video clips modulates event-related potentials to auditory probes.
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Level of interest in video clips modulates event-related potentials to auditory probes.

机译：对视频剪辑的关注程度可调节与听觉探针相关的事件相关电位。

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摘要

This study examined whether a participant's level of interest in visual materials could be assessed by event-related potentials to auditory probe stimuli. Twelve young adults performed an auditory target detection task while viewing either interesting or less interesting (neutral) silent video clips. The auditory probe stimuli consisted of target (2000 Hz, p=0.15), standard (1800 Hz, p=0.70), and nontarget deviant (500 Hz, p=0.15) tones. Button press responses to target tones were required. Both target and deviant tones elicited a large P3 wave, the amplitude of which was smaller while participants were viewing interesting video clips than neutral video clips or simple still images (control condition). The amplitude reduction of the P3 to deviant tones was more prominent than that of the P3 to target tones. The difference between the neutral and control conditions was significant only for the deviant P3. The three-tone probe task using perceptually deviant, nontarget stimuli may be a useful objective method to assess how strongly a visual material attracts the viewer's attention.
机译：这项研究检查了参与者对视觉材料的兴趣水平是否可以通过与听觉刺激相关的事件相关电位来评估。十二个年轻人执行了听觉目标检测任务，同时观看了有趣的或不太有趣的（中性）无声视频剪辑。听觉探头刺激包括目标音（2000 Hz，p = 0.15），标准音（1800 Hz，p = 0.70）和非目标音变（500 Hz，p = 0.15）音调。需要对目标音调进行按键响应。目标音调和偏离音调都引发了一个大的P3波，与中性视频剪辑或简单静止图像（控制条件）相比，当参与者观看有趣的视频剪辑时，其振幅较小。 P3到偏差音的幅度降低比P3到目标音的幅度降低更为突出。中立和控制条件之间的差异仅对偏差P3有意义。使用感知上偏离，非目标刺激的三音探针任务可能是一种有用的客观方法，可用来评估视觉材料吸引观看者注意力的强烈程度。

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