Three experiments examine the relation between linguistic and non-linguisti
c categorization of spatial relations. We compare linguistic and non-lingui
stic responses to the same spatial stimuli. Contrary to earlier claims in t
he literature (Hayward, W. G. & Tarr, M. J. (1995). Spatial language and sp
atial representation. Cognition, 55, 39-84), we fmd that linguistic and non
-linguistic spatial categories do not correspond. Rather, they appear to ha
ve an inverse relation such that the prototypes of linguistic categories, s
uch as 'above', are boundaries in non-linguistic spatial categorization. Ev
idence for this inverse relation comes from linguistic acceptability judgme
nts and the pattern of bias in participants' reproductions of location. Our
findings suggest that while linguistic and non-linguistic spatial organiza
tion rely on a common underlying structure, that structure may play differe
nt roles in the two organizational systems. (C) 2000 Elsevier Science B.V.
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