Factors Affecting Sensory and Motor Learning

Conditions

• Basic Science

Eligibility Criteria

Sex

ALL

Age

18 Years - 45 Years

Healthy Volunteers

Accepted

Interventions

• Explanatory diagram — BEHAVIORAL
  Participant is told there will be a mismatch between their target finger and the visual indicator of target finger position. They will be shown a diagram explaining this.
• Direct vision — BEHAVIORAL
  Foamboard under mirror removed, making the mirror see-through and the hand directly visible. Mismatch between target hand and visual indicator will be directly visible.
• Movement feedback, target hand — BEHAVIORAL
  After the participant points at each target, a cursor indicating final pointing position will be displayed briefly. The visual indicator of the target hand will be displaced.
• Movement feedback, pointing hand — BEHAVIORAL
  After the participant points at each target, a cursor indicating final pointing position will be displayed briefly. The visual indicator of the target hand will not change, but the cursor indicating pointing hand position will change.
• No movement feedback — BEHAVIORAL
  The visual indicator of the target hand will be displaced, but there will be no cursor to indicate the pointing hand's position.
• Attend to the targets — BEHAVIORAL
  Participants will not be told anything about the visuo-proprioceptive mismatch. Instead, they will be asked simply to attend to the target positions.

Study Details

How participants perceive the position of their own hand in various contexts will be examined. This will include changing the visual display to suggest the hand is in a slightly different position, and asking participants to indicate where they think it is by pointing with their other hand.

Key Dates

Start date

Apr 29, 2022

Status verified

Aug 2025

Primary completion

Apr 30, 2027

Completion

Apr 30, 2027

Study Design

Enrollment

300 participants (estimated)

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

BASIC_SCIENCE

Arms

• Sham Comparator: Conscious awareness: No information
  Told nothing about the visuo-proprioceptive mismatch. Hand remains hidden beneath mirror that shows visual display. (control)
• Experimental: Conscious awareness: Explanatory diagram
  Told in advance about the visuo-proprioceptive mismatch, which will be explained with a diagram. Hand remains hidden.
• Experimental: Conscious awareness: Direct vision of hand
  Foamboard under mirror removed, making the mirror see-through and the hand directly visible.
• Sham Comparator: Movement feedback: No feedback
  No movement feedback (control)
• Experimental: Movement feedback: Target hand
  Movement feedback about the target hand.
• Experimental: Movement feedback: Pointing hand
  Movement feedback about the pointing hand.

Primary Outcome Measure

Realignment [ Time Frame: 1 day ]

Central Contacts

• Hannah J Block, PhD
  8128555390
  [email protected]

Locations (1)

Find similar trials in Bloomington, IN

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