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Multiple-object tracking and visually guided touch.

Mallory E Terry1, Lana M Trick2

  • 1Department of Psychology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada.

Attention, Perception & Psychophysics
|March 31, 2021
PubMed
Summary
This summary is machine-generated.

Multiple-object tracking (MOT) and visually guided touch share cognitive resources. Interference patterns suggest specific MOT mechanisms are involved in touch, especially when tracking multiple targets.

Keywords:
Attentional trackingExogenous orientingMultiple-object trackingPremotor theory of attentionSelection for action

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Area of Science:

  • Cognitive psychology
  • Visual perception
  • Human-computer interaction

Background:

  • Multiple-object tracking (MOT) requires distinguishing and following multiple items among distractors.
  • The item individuation mechanism in MOT is hypothesized to be shared with other visually guided actions, such as touch.

Purpose of the Study:

  • To investigate the potential shared cognitive mechanisms between multiple-object tracking (MOT) and visually guided touch.
  • To determine if performing MOT interferes with touch, and vice versa, and how this interference varies based on task elements.

Main Methods:

  • Comparison of single-task MOT performance with dual-task performance (MOT while touching items).
  • Measurement of reaction times (RT) for touch responses in single-task (touch alone) and dual-task (touch + track) conditions.
  • Analysis of interference effects based on whether touched items were MOT targets or distractors.

Main Results:

  • Touching items interfered with MOT performance, with greater interference when touching distractors compared to targets.
  • MOT interfered with touch, increasing RTs, particularly when the item to be touched was a distractor.
  • Interference was more pronounced in MOT when tracking multiple targets, and touch interference was higher for distractors.

Conclusions:

  • Both general and differential interference were observed, suggesting shared limited resources (e.g., attention, working memory) and specific MOT mechanisms involved in touch.
  • The findings support the hypothesis that the item individuation mechanisms used in MOT are also employed in visually guided touch.
  • This research highlights the intricate relationship between tracking multiple objects and performing fine motor actions guided by vision.