Factors Affecting Sensory and Motor Learning

Summary

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.

Conditions

• Basic Science

Interventions

BEHAVIORAL

Explanatory diagram

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.

BEHAVIORAL

Direct vision

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.

BEHAVIORAL

Movement feedback, target hand

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.

BEHAVIORAL

Movement feedback, pointing hand

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.

BEHAVIORAL

No movement feedback

The visual indicator of the target hand will be displaced, but there will be no cursor to indicate the pointing hand's position.

BEHAVIORAL

Attend to the targets

Participants will not be told anything about the visuo-proprioceptive mismatch. Instead, they will be asked simply to attend to the target positions.

Sponsors & Collaborators

• National Institute of Neurological Disorders and Stroke (NINDS)

  collaborator NIH

• Indiana University

  lead OTHER

Principal Investigators

• Hannah J Block · Indiana University, Bloomington

Study Design

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

45 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2022-04-29

Primary Completion

2027-04-30

Completion

2027-04-30

Countries

• United States

Study Locations