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February 20, 2026PLoS ONEOpen Access

The influence of visual input and attention on gait initiation in people with Parkinson disease

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Authors

CDChelsea DuppenJSJenevieve SurkinSMShefaali Mahendar

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Overview

Examines how visual and attentional demands affect gait initiation in Parkinson patients, suggesting implications for interventions.

Key Points

  • The aim is to understand how visual input and attention affect gait initiation in people with Parkinson disease versus older adults.
  • Examined 16 people with Parkinson disease and 16 older adults.
  • Performed gait initiation under four visual conditions (unaltered, partial occlusion, full occlusion, additional stimuli).
  • Incorporated a cognitive dual-task to assess attentional demands.
  • Measured first step length, speed, and anticipatory postural adjustment size.
  • No significant interaction effects between group and visual conditions.
  • Full visual occlusion decreased first step length, speed, and postural adjustment size.
  • Partial occlusion reduced first step length and increased postural adjustment size.
  • Cognitive dual-tasking led to reduced performance across all measures.

Cite This Study

Duppen et al. (2026) studied this question.

synapsesocial.com/papers/6997fa90ad1d9b11b3453cfahttps://doi.org/10.1371/journal.pone.0342661
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