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Идёт набор NCT06047717

Vision Loss Impact on Navigation in Virtual Reality

Без фазы С лечением Stroke, Ischemic Quadrantanopia Hemianopsia, Homonymous Hemianopia, Homonymous

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают
В протоколе указаны: Virtual Reality Driving Task.
Кому может быть актуально
Состояния в реестре: Stroke, Ischemic, Quadrantanopia, Hemianopsia, Homonymous, Hemianopia, Homonymous. Базовые параметры: 21 лет — 75 лет · Все.
Что важно проверить
Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится
США
Следующий шаг
Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

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Официальное название

The Impact of Vision Loss on Naturalistic Behavior and Navigation in Virtual Reality

Обзор

The purpose of this research is to better understand the impact of cortically-induced blindness (CB) and the compensatory strategies subjects with this condition may develop on naturalistic behaviors, specifically, driving. Using a novel Virtual Reality (VR) program, the researchers will gather data on steering behavior in a variety of simulated naturalistic environments. Through the combined use of computer vision, deep learning, and gaze-contingent manipulations of the visual field, this work will test the central hypothesis that changes to visually guided steering behaviors in CB are a consequence of changes to the visual sampling and processing of task-related motion information (i.e., optic flow).

Вмешательства

  • Другое Virtual Reality Driving Task
    Participants will steer a virtual car with the goal of staying in the center of a single-lane roadway while traveling at a constant speed of 26.6 m/s (approximately 60 miles/hr). The roadway alternates between a series of straights and turns of different radii to both the left and the right. This allows for careful control of task difficulty, and for the repeated presentation of specific conditions across multiple "trials" (i.e. turns in the road) in a randomized order. In addition, the density

Первичные конечные точки

  • Virtual Reality (VR) Lane Deviation / Offset [Срок оценки: Day 0]

Критерии участия

Cortically Blind Group:

Критерии включения

  • Residents of the United States or Canada
  • Presence of one-sided stroke or stroke-like damage to primary visual cortex or its immediate afferent white matter sustained within the specified age range of 21 - 75 years (verified by MRI and/or CT scans)
  • Reliable visual field defects in both eyes (homonymous defects) as measured by Humphrey or equivalent perimetry.
  • Willing, able, and competent to provide their own informed consent
  • Cognitively able, responsible to understand written and oral instructions in English
  • Emmetropic or else wear corrective contact lenses inside the virtual reality headset

Критерии исключения

  • Those who have never driven or earned a drivers' license
  • Past or present ocular disease interfering with visual acuity
  • Best corrected visual acuity (BCVA) worse than 20/40 in either eye
  • Sustained damage to the dorsal lateral geniculate nucleus
  • Presence of diffuse, whole-brain degenerative processes
  • Presence of brain damage deemed by study staff to potentially interfere with outcome measures
  • History of traumatic brain injury
  • Documented history of drug/alcohol abuse
  • Diagnosis of cognitive or seizure disorders
  • Diagnosis of one-sided attentional neglect

Control Group:

Критерии включения

  • Normal or corrected-to-normal vision, who are between the ages of 21 and 75 years of age, roughly matched to the age of CB subjects enrolled above
  • Competent and responsible, as determined by the Principal Investigator
  • Willing, able, and competent to provide their own informed consent
  • Normal cognitive abilities, be able to understand written and oral instructions in English
  • Emmetropic or else wear corrective contact lenses inside the virtual reality headset

Критерии исключения

  • Subjects who have never driven or earned a drivers' license
  • BCVA worse than 20/40 in either eye
  • Presence of vision loss from ocular diseases or disorders
  • Presence of a visual field defect
  • Inability to wear corrective contact lenses inside the virtual reality helmet if required to see clearly
  • Subjects with a history of neurological disorders
  • Subjects with a history of TBI
  • Persons who lack the competence or are otherwise unable to perform the visual testing as directed.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение
Нерандомизированное
Модель
Параллельные группы
Маскирование
Открытое
Основная цель
Фундаментальное исследование

Центры проведения

США · 1 центр
  • University of Rochester — Rochester

Идентификаторы

NCT: NCT06047717 · 00008669

Первоисточники (государственные реестры)

Открыть это исследование на ClinicalTrials.gov ↗