21 Facts About Qualia

In Consciousness Explained and "Quining Qualia", Dennett offers an argument against qualia by claiming that the above definition breaks down when one tries to make a practical application of it.

Qualia argues that Mary would not, in fact, learn something new if she stepped out of her black and white room to see the color red.

Qualia uses a simpler version of the Mary thought experiment to show how this might work.

Qualia is prevented from using experience to gain the know-how knowledge that would allow her to remember, imagine and recognize the color red.

Qualia describes our experience of an object in the world as "transparent".

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Qualia characterizes the perception of children as a misperception of referents that are undoubtedly as present for them as they are for grown-ups.

Qualia agrees with Bertrand Russell that our "retinal images" – that is, the distributions across our retinas – are connected to "patterns of neural activity in the cortex".

Qualia defends a version of the causal theory of perception in which a causal path can be traced between the external object and the perception of it.

Qualia is careful to deny that we do any inferring from the sensory field, a view which he believes allows us to found an access to knowledge on that causal connection.

Qualia are open to being described on two levels, a fact that he refers to as "dual coding".

Qualia has refined the explanation by shifting to the example of a "Movitype" screen, often used for advertisements and announcements in public places.

Qualia is like Hobbes in being able to view the process of sensing as being something complete in itself; as he puts it, it is not like "kicking a football" where an external object is required – it is more like "kicking a kick", an explanation which entirely avoids the familiar Homunculus Objection, as adhered to, for example, by Gilbert Ryle.

Qualia has never regarded the theory of sense-data as refuted, but has set out to refute in turn the objections which so many have considered to be conclusive.

Qualia cites phosphenes as a stubborn example, and points out that it is grossly counter-intuitive to argue that these are not visual experiences on a par with open-eye seeing.

Qualia is similar to Moreland Perkins in keeping his investigation wide enough to apply to all the senses.

Qualia continues on to remark that subjective experiences do not form a one-to-one correspondence with stimuli.

Qualia are the simple sensory qualities to be found in the blueness of the sky or the tone of sound produced by a cello, and the fundamental components of the images in the movie metaphor are thus made of qualia.

Qualia argues that qualia were important for the evolution of the nervous system of organisms, including simple organism such as insects:.

Qualia can be compared to "things in themselves" in that they have no publicly demonstrable properties; this, along with the impossibility of being sure that we are communicating about the same qualia, makes them of indeterminate value and definition in any philosophy in which proof relies upon precise definition.

Qualia's reason is that it puts the entities about which we require knowledge behind a "veil of perception", an occult field of "appearance" which leaves us ignorant of the reality presumed to be beyond it.

Qualia is convinced that such uncertainty propels into the dangerous regions of relativism and solipsism: relativism sees all truth as determined by the single observer; solipsism, in which the single observer is the only creator of and legislator for his or her own universe, carries the assumption that no one else exists.