Sentence:  This meant , concretely , that the patient could not read at all without making writing like movements of the <WSD>head</WSD> or body , became easily confused by `` hasher marks '' inserted between hand-written words and thus confused the mark for one of the letters , and could recognize a simple straight line or a curved one only by tracing it . 
Meaning of the word marked with <WSD> tags:  the upper part of the human body or the front part of the body in animals; contains the face and brains