Lemoncello Rik, Sohlberg McKay Moore, Fickas Stephen
Speech & Hearing Sciences, Portland State University, Portland, OR, USA.
Brain Inj. 2010;24(3):541-9. doi: 10.3109/02699051003610425.
To compare the effects of written landmark, cardinal and left/right street directions on navigational success at the beginning of a walking route.
Matched control group comparison design.
This study compared navigational performance of 18 adults with acquired brain injury (ABI) to controls matched for gender, age and education. Participants followed written directions with landmark, cardinal or left/right directions at each of four locations. Dependent measures included accuracy, directness, stated confidence and preference.
Participants with ABI demonstrated greater errors and hesitancy than controls when presented with cardinal and left/right directions. Both groups performed equally well with landmark directions. All participants stated preference for landmark directions. Participants with ABI were more likely to guess or become confused when following cardinal or left/right directions.
Landmarks served as a performance equalizer between groups for navigational performance at the start of a walking route. Implications for the design of navigational assistive tools and future research are discussed.
比较书面地标、基本方向和左/右街道方向对步行路线起点导航成功率的影响。
匹配对照组比较设计。
本研究将18名获得性脑损伤（ABI）成人的导航表现与在性别、年龄和教育程度上匹配的对照组进行比较。参与者在四个地点中的每一个地点按照带有地标、基本方向或左/右方向的书面指示行走。相关测量指标包括准确性、直接性、所表达的信心和偏好。
在面对基本方向和左/右方向时，患有ABI的参与者比对照组表现出更多的错误和犹豫。两组在遵循地标方向时表现同样出色。所有参与者都表示更喜欢地标方向。患有ABI的参与者在遵循基本方向或左/右方向时更有可能猜测或感到困惑。
在地标作为步行路线起点的导航表现中，它是两组之间的一个表现均衡器。文中讨论了对导航辅助工具设计及未来研究的启示。
