DesignLex
/设计研究/n-back task
论文专业

n-back task

n-back 任务,一种用于度量工作记忆负荷的连续操作任务——参与者需判断当前刺激是否与前 n 次呈现的刺激一致。HCI 研究中常用来精确控制任务的认知负荷水平。

English Definition

"A continuous performance task widely used in cognitive psychology and HCI research to measure working memory load, in which participants must indicate when the current stimulus matches the one presented n trials earlier."

用法说明 · 针对中文母语者

n 取 1、2、3 时分别对应低、中、高负荷。本研究用它作为「标准化可控任务」来操控 NDRT 的认知维度,是 HCI 实验设计中的常见手法。

常见错误

  • ·写成 n-Back 或 N-back——期刊里通常小写 n、连字符、大写 B
  • ·误以为仅用于脑科学研究——在 HCI/UX 实验中同样高频使用

真实用例 · 2

"Three tasks with different types of visual input were selected: an auditory n-back task, a static visual n-back task, and a dynamic visual task."

论文Pipeline extracted — review needed·method 中说明任务设计:三种 n-back 操控不同视觉输入模态

"a more theoretical approach was taken and controlled tasks were chosen to compare certain task characteristics regarding their impact on car sickness."

论文Pipeline extracted — review needed·introduction 中解释为何选 n-back 这类标准化任务
由 pipeline 自动采集,待人工 review