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自我损耗的视听通道效应
引用本文:李琼,张晓斌,黄希庭.自我损耗的视听通道效应[J].心理科学,2016,39(3):514-519.
作者姓名:李琼  张晓斌  黄希庭
作者单位:1. 西北师范大学心理学院;2. 西南大学心理学部;
摘    要:采用双任务实验范式,通过两个实验探讨了自我损耗的通道效应。实验1考察了完成视听工作记忆任务对执行手柄任务(非视听任务)的影响,结果发现,完成视觉损耗任务导致手柄任务的成绩显著地变差,完成听觉损耗任务、视听非损耗任务均对手柄任务的成绩没有影响。实验2考察了完成视听工作记忆任务对执行Stroop任务(视觉任务)的影响,结果发现,完成视觉损耗任务导致Stroop任务的成绩显著地变差,完成听觉损耗任务、视听非损耗任务对Stroop任务的成绩没有影响。研究结果表明同一自我控制任务通过视听通道完成对随后另一自我控制任务的影响不同,证实了自我损耗的视听通道效应。

关 键 词:自我控制  自我损耗  通道效应  
收稿时间:2014-10-09
修稿时间:2015-06-30

The Audio-visual Modality Effect in Ego Depletion
Abstract:Self-control is the ability to attain deliberative control over impulses and abstain from gratifying immediate needs and desires. The strength model of self-control is the most influential theory of explaining the failure of self-control. The strength model indicated resources used for an initial self-control attempt are no longer available for later attempts, resulting in decreased self-control performance. This phenomenon is labeled ego depletion and has been demonstrated in a wide range of studies. The prior studies on strength model focus on different tasks sharing the limited resource. The present study explored whether the same task exerted different modality share the limited resource. The authors adopted the dual-task paradigm through two experiments to validate the modality effect in ego depletion. In Experiment 1, the first task was the working memory task which executed through auditory or visual modality, and the second task was the physical stamina tasks which exerted independent of auditory and visual modality. In Experiment 2, the first task was the working memory, and the second task was the Stroop task which exerted through visual modality. The results of experiment 1 showed that participants who completed visual depleted task performed worse at the second handgrip measure than participants who completed visual non-depleted task, and there is no significant difference at the second handgrip measure between participants who completed auditory depleted task and auditory non-depleted task. The results of Experiment 2 were the same as the ones of Experiment 1. The experiment 1 and experiment 2 indicated implementing the same self-control task through different modality depleted unequal resource, so had different effect on a subsequent task of self-control, which validated the modality effect of ego depletion.
Keywords:self-control  ego depletion  modality effect  
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