Sentence:  If the argument is accepted as essentially sound up to this point , it remains for us to consider whether the patient 's difficulties in orienting himself spatially and in locating objects in space with the <WSD>sense</WSD> of touch can be explained by his defective visual condition . 
Meaning of the word marked with <WSD> tags:  the faculty by which external objects or forces are perceived through contact with the body (especially the hands)