2McShane R, Gedling K, Keene J, et al. Getting lost in dementia: a longitudinal study of a behavioral symptom [J]. Int Psychogeriatr, 1998,10(3) : 253-260.
3Bowen M E, McKenzie B, Steis M, et al. Prevalence of and antecedents to dementia-related missing incidents in the community[J]. Dement Geriatr Cogn Disord, 2011, 31(6) :406-412.
4Chiu Y C, Algase D, Liang J, et al. Conceptualization and measurement of getting lost behavior in persons with early dementia[J]. Int J Geriatr Psychiatry,2005,20(8) : 760-768.
5Cushman L A, Stein K, Duffy C J. Detecting naviga- tional deficits in cognitive aging and Alzheimer disease u sing virtual reality [J]. Neurology, 2008, 71 (12) : 888- 895.
6Morris R G, Garrud P, Rawlins J N, et al. Place naviga tion impaired in rats with hippocampal lesions [J]. Na- ture, 1982,297 (5868) : 681-683.
7Astur R S, Taylor L B, Mamelak A N, et al. Humans with hippocampus damage display severe spatial memory impairments in a virtual Morris water task [J]. Behav Brain Res,2002,132(1) :77-84.
8Jheng S S, Pai M C. Cognitive map in patients with mildAlzheimer's disease: a computer-generated arena study [J].Behav Brain Res,2009,200 (1) : 42-47.
9Aguirre G K. Topographical disorie:atation: a disorder of way-finding disorder [M]//Dt Esposito M. Neurological Foundations of Cognitive Neuroscience. Cambridge, Mas- sachusetts : MIT Press. 2003,89-108.
10Mapstone M, Steffenella T M, Dully C J. A visuospatial variant of mild cognitive impairment: getting lost be- tween aging and AD[J]. Neurology, 2003,60 (5) : 802- 808.