Skip to content

On a confusion about a function of consciousness

Ned Block

Behavioral and Brain Sciences June 1, 1995 DOI: 10.1017/s0140525x00038188 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Theoretical or philosophical paper Peer reviewed
Citations 3,267
Key points Argues that phenomenal consciousness and access consciousness are distinct and frequently conflated, and that blindsight-based reasoning about a function of consciousness commits a fallacy by transferring an obvious function of the machinery of access consciousness to phenomenal consciousness, since blind-field stimuli are both access-unconscious and phenomenally unconscious.

Abstract

Abstract Consciousness is a mongrel concept: there are a number of very different “consciousnesses.” Phenomenal consciousness is experience; the phenomenally conscious 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 example a form of reasoning about a function of “consciousness” based on the phenomenon of blindsight. Some information about stimuli in the blind field is represented in the brains of blindsight patients, as shown by their correct “guesses.” They cannot harness this information in the service of action, however, and this is said to show that a function of phenomenal consciousness is somehow to enable information represented in the brain to guide action. But stimuli in the blind field are both access-unconscious and phenomenally unconscious. The fallacy is: an obvious function of the machinery of accessconsciousness is illicitly transferred to phenomenal consciousness.