Preview: A Neglected Variable in Orientation and Mobility

Autor:	Emerson Foulke, John L. Barth
Rok vydání:	1979
Předmět:	Blindness Rehabilitation Orientation and Mobility Perceptual Orientation Human echolocation Cognition medicine.disease Perceptual Motor Coordination Ophthalmology Variable (computer science) Perceptual-motor processes medicine Psychology Cognitive psychology
Zdroj:	Journal of Visual Impairment & Blindness. 73:41-48
ISSN:	1559-1476 0145-482X
DOI:	10.1177/0145482x7907300201
Popis:	The contribution of preview to the performance of open tasks is pointed out, and sensory anticipation and perceptual anticipation are discussed as components of preview. A case is then made for regarding the blind pedestrian's task as a typical example of an open task. Next, there is a review of research in which the contribution of preview to the performance of open tasks has been observed under controlled conditions. Preview has not been the variable of primary interest in the studies of the performance of blind pedestrians reported so far. However, some experiments have provided indications of the importance of preview, and these experiments are reviewed. The article concludes by urging the necessity of understanding preview, so that its contribution to the performance of blind pedestrians can be taken into account in the formulation of mobility training programs and the design of mobility aids.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::26e76ca9a7b7d6d5b8359344967065c6 https://doi.org/10.1177/0145482x7907300201 Zobrazit plný text záznamu