Our use of spatial prepositions carries an implicit understanding of the functional relationships both between objects themselves and human interaction with those objects. This is the thesis rigorously explicated in Saying, Seeing and Acting. The terms of the debate are established and contextualised in part one. In the second part systematic experimental evidence is drawn upon to demonstrate specific covariances between spatial world and spatial language. The authors go on to give an original account of the functional and geometric constraints on which comprehension and human action among spatially related objects is based. Part three looks at the interaction of these constraints to create a truly dynamic functional geometric framework for the meaningful use of spatial prepositions. Fascinating to anyone whose work touches on psycholinguistics, this book represents a thorough and incisive contribution to debates in the cognitive psychology of language. -- from back cover.