Attempts to
establish the relation between salience, visual attention, and
visual awareness have generally met with a distinct lack of success.
It is argued here that many (if not most) of the problems encountered
are due to ontological poverty--an inadequate set of distinctions
being drawn, and a failure to operationalize these distinctions
clearly and correctly. For example, there are several different
meanings that can be ascribed to the term "attention",
and several of these distinctions can be matched with different
perceptual mechanisms. Likewise, various meanings can be
ascribed to the term "awareness", and again, several
of these can be correlated with different perceptual processes.
A large part of the problem of establishing the relation between
salience, awareness and attention therefore exists because there
is no single relation to be established. Instead, there
are several different relations, each of which must be established
separately. Examples will be presented of some of the relevant
distinctions that can be drawn, and of the relations that can
be established.