|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ПсковГУ |
||
The influence of optic flow on gait initiationтезисы доклада
- Авторы: Ustinova KI, Knaut LA, Laberge PA, Lamontagne A., Feldman AG
- Сборник: 2007 Conference of The International Society for Postural and Gait Research (14-18.07.2007 Vermont, USA)
- Тезисы
- Год издания: 2007
- Место издания: International Society for Gait and Posture Vermont, USA
- Первая страница: 80
- Последняя страница: 80
- Аннотация: Introduction. While walking, we perceive the environment as motionless despite the shift in the visual image on the retina. In order to perceive the environmental constancy, an appropriate internal transformation of optic flow is needed. To be efficient, such sensory transformation should be initiated somewhat before the gait onset. This hypothesis implies that, by artificially changing the optic flow from a stationary to a moving pattern, one can influence the latency of gait initiation. We tested this suggestion by analyzing the latency of gait initiated in response to expansion or compression of a virtual hallway at different rates. For comparison, we also analyzed the latency of gait initiated in a physical environment at different speeds in response to a sound signal. Methods. Virtual optical stimulation was delivered to healthy subjects (n=10) via a head-mounted display. The virtual expansion or compression of the hallway resembled to the natural changes in the optic flow occurring during walking forward or backward, respectively, in a physical hallway. In each of the two types of stimulation, 9 rates ranged from 0.5 to 8 m/s were used in randomly selected trials.
- Добавил в систему: Устинова Ксения Ивановна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Краткий текст | 2007_conf_The_influence_of_optic_flow_on_gait_initiation.pdf | 5,3 МБ | 21 мая 2017 [UstinovaK] | |
| 2. | Иллюстрация | Poster_ISPGR_07_VR.pdf | 1,4 МБ | 11 сентября 2016 [UstinovaK] |