Consciousness is a mongrel concept: there are a number of very different "c
onsciousnesses." Phenomenal consciousness is experience; the phenomenally c
onscious aspect of a state is what it is like to be in that state. The mark
of access-consciousness, by contrast, is availability for use In reasoning
and rationally guiding speech and action. These concepts are often partly
or totally conflated, with bad results. This target article uses as an exam
ple a form of reasoning about a function of "consciousness" based on the ph
enomenon of blindsight. Some information about stimuli in the blind field i
s represented in the brains of blindsight patients, as shown by their corre
ct "guesses." They cannot harness this information in the service of action
, however, and this is said to show that a function of phenomenal conscious
ness is somehow to enable information represented in the brain to guide act
ion. But stimuli in the blind held are both access-unconscious and phenomen
ally unconscious. The fallacy: is: an obvious function of the machinery of
access-consciousness is illicitly transferred to phenomenal consciousness.