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Asymmetric interference between cognitive task components and concurrent sensorimotor coordination.

Joshua Baker1, Antonio Castro1, Andrew K Dunn1

  • 1Department of Psychology, Nottingham Trent University , Nottingham , United Kingdom.

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|April 12, 2018
PubMed
Summary
This summary is machine-generated.

Dual-tasking impairs cognitive tasks and continuous sensorimotor coordination (CSC) but the interference is temporally asymmetric. Cognitive operations impaired by CSC may not be the ones impairing CSC, impacting mobility and neurological rehabilitation.

Keywords:
balancingdrivingdual-taskingevent-related potentialgaitoddball tasksensorimotor coordinationtrackingwalking

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Area of Science:

  • Cognitive Neuroscience
  • Human Factors Engineering
  • Electrophysiology

Background:

  • Everyday activities often involve dual-tasking, combining cognitive demands with continuous sensorimotor coordination (CSC).
  • Existing research often attributes dual-task interference to executive function or attention, but the temporal dynamics and reciprocity of this interference are not fully understood at the information-processing level.

Purpose of the Study:

  • To investigate the detailed chronometry and nature of dual-task interference between a cognitive task and CSC.
  • To explore the temporal asymmetry and reciprocity of interference between cognitive processing and sensorimotor control.

Main Methods:

  • Utilized electrophysiology to examine dual-task interference between a visual oddball task (cognitive) and a continuous visuomanual tracking task (CSC proxy).
  • Analyzed electrophysiological components of the oddball task and tracking performance to understand information-processing impacts.

Main Results:

  • Dual-tasking negatively affected the oddball task's accuracy and attentional processes, evidenced by attenuated P2 and P3b magnitudes and reduced parietal alpha-band event-related desynchronization.
  • Tracking errors due to dual-tasking occurred later and specifically when the oddball stimulus required an action, indicating temporally asymmetric interference.

Conclusions:

  • Interference between cognitive tasks and CSC can be asymmetric in timing and affected components.
  • This temporal asynchronicity has critical implications for understanding age-related mobility decline and for developing rehabilitation strategies for neurological impairments.