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不同难度任务下自我调节机制对心理负荷水平的影响

闫佳庆 李丹 邓金钊 顾恒 孙文浩 龙舟 李小俚

闫佳庆, 李丹, 邓金钊, 顾恒, 孙文浩, 龙舟, 李小俚. 不同难度任务下自我调节机制对心理负荷水平的影响[J]. 电子与信息学报, 2023, 45(8): 2780-2787. doi: 10.11999/JEIT221260
引用本文: 闫佳庆, 李丹, 邓金钊, 顾恒, 孙文浩, 龙舟, 李小俚. 不同难度任务下自我调节机制对心理负荷水平的影响[J]. 电子与信息学报, 2023, 45(8): 2780-2787. doi: 10.11999/JEIT221260
YAN Jiaqing, LI Dan, DENG Jinzhao, GU Heng, SUN Wenhao, LONG Zhou, LI Xiaoli. Impact of Self-regulation on Mental Workload under Different Difficulty Tasks[J]. Journal of Electronics & Information Technology, 2023, 45(8): 2780-2787. doi: 10.11999/JEIT221260
Citation: YAN Jiaqing, LI Dan, DENG Jinzhao, GU Heng, SUN Wenhao, LONG Zhou, LI Xiaoli. Impact of Self-regulation on Mental Workload under Different Difficulty Tasks[J]. Journal of Electronics & Information Technology, 2023, 45(8): 2780-2787. doi: 10.11999/JEIT221260

不同难度任务下自我调节机制对心理负荷水平的影响

doi: 10.11999/JEIT221260
基金项目: 北京市教委科技一般项目(KM202010009006)
详细信息
    作者简介:

    闫佳庆:男,博士,副教授,研究方向为神经信息与工程、计算神经科学

    李丹:女,硕士生,研究方向为神经信号处理

    邓金钊:男,硕士生,研究方向为计算神经科学

    顾恒:男,博士,研究方向为认知工效学

    孙文浩:男,硕士生,研究方向为神经信号处理

    龙舟:男,硕士生,研究方向为神经信号处理

    李小俚:男,教授,研究方向为神经工程、信号处理与计算神经科学

    通讯作者:

    李小俚 xiaoli@bnu.edu.cn

  • 中图分类号: TN911.7; R318

Impact of Self-regulation on Mental Workload under Different Difficulty Tasks

Funds: The Scientific Research Project of Beijing Educational Committee (KM202010009006)
  • 摘要: 持续的高水平心理负荷会导致不良的自我调节行为,但面向不同难度任务时自我调节行为对心理负荷的影响尚不明确。该文提出一种面向不同难度任务,基于自我调节行为的算术范式。被试者在每轮开始前可以根据自己的决策自行选择题目难度任务。范式可以观察在自我调节下,不同难度任务对被试者心理负荷的影响。该文使用事件相关电位(ERP)、功率谱密度(PSD)及脑电微状态进行分析。结果表明,在不同任务难度下,自我调节行为均引发了额外的心理负荷。自我调节行为主要与额叶区域有关,表现出P300振幅及theta,alpha频带功率增大,P600振幅减小。在中等难度任务下,自我调节引发的额外负荷较小,且促使被试者表现出更好的绩效水平。该文范式能够有效地识别出适合被试者的任务难度。在实际任务设计中,应考虑适合被试者的任务难度,减少不良自我调节行为的发生,提升被试者的绩效水平。
  • 图  1  范式流程图

    图  2  CPz处事件相关电位

    图  3  Pz处事件相关电位

    图  4  脑电地形图

    图  5  CPz处功率谱密度

    图  6  Pz处功率谱密度

    图  7  脑电微状态

    表  1  行为学数据分析结果

    正确数简单难度任务答题用时中等难度任务答题用时困难难度任务答题用时
    均值(n)方差(n)P均值
    (s)
    方差
    (s)
    P均值(s)方差(s)P均值(s)方差(s)P
    实验组41.173.220.0361.492.38<0.0012.593.58<0.0014.636.68<0.001
    对照组44.224.972.743.851.642.192.793.85
    下载: 导出CSV

    表  2  完成简单难度任务时P300分析结果

    额叶中央头顶区-顶叶顶叶
    均值(µV)方差(µV)P均值(µV)方差(µV)P均值(µV)方差(µV)P
    实验组4.172.780.0022.811.860.0112.362.12<0.001
    对照组2.982.183.662.53.92.97
    下载: 导出CSV

    表  3  完成简单难度任务时P600分析结果

    额叶中央头顶区中央头顶区-顶叶顶叶
    均值(µV)方差(µV)P均值(µV)方差(µV)P均值(µV)方差(µV)P均值(µV)方差(µV)P
    实验组0.881.910.032.122.540.0013.192.50.0072.532.790.001
    对照组–0.212.813.452.514.43.374.163.4
    下载: 导出CSV

    表  4  完成中等难度任务时P300分析结果

    额叶中央头顶区-顶叶顶叶
    均值(µV)方差(µV)P均值(µV)方差(µV)P均值(µV)方差(µV)P
    实验组4.331.750.0012.652.030.0352.672.510.037
    对照组2.913.493.422.683.542.91
    下载: 导出CSV

    表  5  完成中等难度任务时P600分析结果

    额叶中央头顶区中央头顶区-顶叶顶叶
    均值(µV)方差(µV)P均值(µV)方差(µV)P均值(µV)方差(µV)P均值(µV)方差(µV)P
    实验组0.632.730.0052.782.510.0133.482.90.0033.273.280.004
    对照组–0.743.543.762.574.983.484.843.6
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-09-29
  • 修回日期:  2023-04-18
  • 网络出版日期:  2023-04-27
  • 刊出日期:  2023-08-21

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