AI-Powered Artificial Vision for Visual Prostheses

Launched by UNIVERSITY OF CALIFORNIA, SANTA BARBARA · Nov 1, 2023

Keywords

ClinConnect Summary

The investigators will perform basic experimental studies involving humans (BESH) designed to quantify the perceptual experiences of visual prosthesis patients. These experiments will follow standard procedures for collecting behavioral data, and involve simple perceptual tasks (e.g., signal detection, object recognition) and behavioral tasks (e.g., walking towards a goal location).

The investigators will produce visual percepts in visual prosthesis patients either by directly stimulating electrodes (using standard, safe pulse trains), or by asking them to view a computer or projector scre...

Gender

ALL

Eligibility criteria

• Criteria for inclusion of visual prosthesis users:
• • Subject must be at least 18 years of age;
• • Subject has been implanted with a visual prosthesis (e.g., Argus II, Orion, Cortivis)
• • Subject has healed from surgery and the surgeon has cleared the subject for programming;
• • Subject has the cognitive and communication ability to participate in the study (i.e., follow spoken directions, perform tests, and give feedback);
• • Subject is willing to conduct psychophysics testing up to 4-6 hours per day of testing on 3-5 consecutive days;
• • Subject is capable of understanding patient information materials and giving written informed consent;
• • Subject is able to walk unassisted.
• Criteria for inclusion of sighted control subjects:
• • Subject speaks English;
• • Subject must be at least 18 years of age;
• • Subject has visual acuity of 20/40 or better (corrected);
• • Subject has the cognitive and communication ability to participate in the study (i.e., follow spoken directions, perform tests, and give feedback);
• • Subject is capable of understanding participant information materials and giving written informed consent.
• • Subject is able to walk unassisted
• Exclusion criteria:
• • Visual prosthesis users: Subject is unwilling or unable to travel to testing facility for at least 3 days of testing within a one-week timeframe;
• • Sighted controls: Subject has a history of motion sickness or flicker vertigo
• • All: Subject has language or hearing impairment