We attempt to resolve some details of Barsalou's theory. (1) The mechanism
that guides selection of perceptual information may be the efferent control
of activity. (2) Information about a world that is not accessible to the s
enses can be constructed in the process of semiotic mediation. (3) Introspe
ction may not be a kind of perception; rather, semiotically mediated inform
ation processing might be necessary for the emergence of introspection.