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Related Experiment Video

Updated: Feb 7, 2026

Examining Online Syntactic Processing of Spoken Complex Sentences in Chinese Using Dual-Modal Interference Tasks
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Investigating the interference pattern of dual tasks using serial decomposition.

Eun Kyoung Kang1,2, Dabi Shin1,2, Jeong-Yeon Yun3,4

  • 1Department of Rehabilitation Medicine, Kangwon National University Hospital, Chuncheon, Republic of Korea.

Restorative Neurology and Neuroscience
|July 30, 2018
PubMed
Summary

Dual task interference impacts cognitive and motor performance. Combining cognitive and motor tasks reveals significant interference, suggesting a cognitive load precedes motor tasks.

Keywords:
Dual taskcognitioninterferencemotortask

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Area of Science:

  • Neuroscience
  • Human Factors Engineering
  • Cognitive Psychology

Background:

  • Investigating dual task interference (DTI) is crucial for optimizing training exercises.
  • Enhancing daily activity performance can be achieved through targeted exercise development.

Purpose of the Study:

  • To reveal dual task interference (DTI) in healthy adults.
  • Compare performance between single cognitive or motor tasks and dual tasks using serial decomposition.

Main Methods:

  • 46 healthy adults performed computerized cognitive (CT), motor (MT), and dual tasks (DT).
  • Measured reaction time (RTCR) for BT1, button shifting time, and finger tapping rate.
  • Calculated DTI values by comparing single-task RTCR to dual-task RTCR.

Main Results:

  • The ratio of RTCR in CT (% CT/DT) and MT (% MT/DT) was significantly lower than in DT (% DT/DT).
  • Button shifting time in MT was 92.0±23.7% of baseline.
  • Finger tapping rate in MT was 106.1±19.1% of baseline.

Conclusions:

  • Dual task performance is significantly higher than single-task performance, indicating cognitive load.
  • Cognitive load depends on the specific cognitive task performed.
  • Increased button shifting time and decreased tapping rate in DT suggest concurrent cognitive and motor loads.