Place, U. T. (1974-03-13). Lecture 19: Perception, topic neutrality and the properties of experience (13/3/1974). Section 5
[Abstract]Phenomenalism. Topic neutrality of phenomenal descriptions. Introspective reports. The expression of pain. Dream reports. Thesis: the language we use to describe our private experiences and sensations is a metaphorical extension of a language whose basic function is to describe material objects and their properties as they exist and occur in a three dimensionally extended spatial world.
[References]  
Download: Amsterdam lecture 19