Study: NCT05818787

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Vestibular Perceptual Learning
Description: The participants will be tilted and asked to indicate their perceived direction of self-motion (e.g., left or right). Feedback will be provided to promote learning (i.e., improved perception of motion). Feedback will only be provided after the subject response, and thus vestibular (i.e., self-motion) perception is required to judge the direction of the tilt stimulus. After each trial, a 3 second period of rest will be given. Each day of training will include three blocks of one-hundred trials each. Testing will take place in the dark (except for aims where a visual cue is provided). Subjects will be seated on a motion platform with a 5-point harness and the head restrained. Noise cancelling earpieces (along with a white noise signal) will be used to reduce external noise. Subjects will always be asked to make a decision (e.g. left versus right) by pressing buttons with their left or right hands. If not certain, subjects are instructed to provide their best guess.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Placebo Intervention
Description: The placebo (or control) task will consist of oculomotor exercises that the subject will complete at home (i.e., outside of the lab). The oculomotor exercises will include saccadic eye movements performed in the horizontal and vertical planes. All movements will be completed within a limited, comfortable range of motion with the head remaining stationary. As the control intervention will be performed with the head stationary and in a seated position, no change in self-motion perception or balance is expected to result from the control (i.e., placebo) task.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Placebo Intervention
Description: The placebo (or control) task will consist of oculomotor exercises that the subject will complete at home (i.e., outside of the lab). The oculomotor exercises will include saccadic eye movements performed in the horizontal and vertical planes. All movements will be completed within a limited, comfortable range of motion with the head remaining stationary. As the control intervention will be performed with the head stationary and in a seated position, no change in self-motion perception or balance is expected to result from the control (i.e., placebo) task.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Placebo Intervention
Description: The placebo (or control) task will consist of oculomotor exercises that the subject will complete at home (i.e., outside of the lab). The oculomotor exercises will include saccadic eye movements performed in the horizontal and vertical planes. All movements will be completed within a limited, comfortable range of motion with the head remaining stationary. As the control intervention will be performed with the head stationary and in a seated position, no change in self-motion perception or balance is expected to result from the control (i.e., placebo) task.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Placebo Intervention
Description: The placebo (or control) task will consist of oculomotor exercises that the subject will complete at home (i.e., outside of the lab). The oculomotor exercises will include saccadic eye movements performed in the horizontal and vertical planes. All movements will be completed within a limited, comfortable range of motion with the head remaining stationary. As the control intervention will be performed with the head stationary and in a seated position, no change in self-motion perception or balance is expected to result from the control (i.e., placebo) task.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Placebo Intervention
Description: The placebo (or control) task will consist of oculomotor exercises that the subject will complete at home (i.e., outside of the lab). The oculomotor exercises will include saccadic eye movements performed in the horizontal and vertical planes. All movements will be completed within a limited, comfortable range of motion with the head remaining stationary. As the control intervention will be performed with the head stationary and in a seated position, no change in self-motion perception or balance is expected to result from the control (i.e., placebo) task.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Placebo Intervention
Description: The placebo (or control) task will consist of oculomotor exercises that the subject will complete at home (i.e., outside of the lab). The oculomotor exercises will include saccadic eye movements performed in the horizontal and vertical planes. All movements will be completed within a limited, comfortable range of motion with the head remaining stationary. As the control intervention will be performed with the head stationary and in a seated position, no change in self-motion perception or balance is expected to result from the control (i.e., placebo) task.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Placebo Intervention
Description: The placebo (or control) task will consist of oculomotor exercises that the subject will complete at home (i.e., outside of the lab). The oculomotor exercises will include saccadic eye movements performed in the horizontal and vertical planes. All movements will be completed within a limited, comfortable range of motion with the head remaining stationary. As the control intervention will be performed with the head stationary and in a seated position, no change in self-motion perception or balance is expected to result from the control (i.e., placebo) task.