“…Human beings first acquire spatial knowledge through perceptual and navigational experience (e. g., Cornell, Heth, & Alberts, 1994;Golledge, Klatzky, & Loomis, 1996). It is only in very recent years that the investigation of language as a means of acquiring and externalizing spatial knowledge has become the object of specific research programs in cognitive psychology (e. g., Daniel, CaritØ, & Denis, 1996;de Vega, 1995;Landau & Jackendoff, 1993;Tversky, 1991). It is only in very recent years that the investigation of language as a means of acquiring and externalizing spatial knowledge has become the object of specific research programs in cognitive psychology (e. g., Daniel, CaritØ, & Denis, 1996;de Vega, 1995;Landau & Jackendoff, 1993;Tversky, 1991).…”