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Single Idea 4886

[filed under theme 15. Nature of Minds / B. Features of Minds / 5. Qualia / a. Nature of qualia ]

Full Idea

Mary knows all the physical facts. ..It seems, however, that Mary does not know all there is to know. For when she is let out of the black and white room .. she will learn what it is like to see something red.

Gist of Idea

Mary knows all the physical facts of seeing red, but experiencing it is new knowledge

Source

Frank Jackson (What Mary Didn't Know [1986], §1.4)

Book Ref

Perry,John: 'Knowledge, Possibility and Consciousness' [MIT 2001], p.15

A Reaction

Jackson is begging the question. A new physical event occurs when the red wavelength stimulates Mary's visual cortex for the first time. For an empiricist raw experience creates knowledge, so it can't BE knowledge. Does Mary acquire a new concept?

The 17 ideas with the same theme [what we should take qualia to be]:

3151 Descartes put thought at the centre of the mind problem, but we put sensation [Rey on Descartes]
5788 The use of 'qualia' seems to imply that consciousness and qualia are separate [Searle]
5808 Qualia are just the properties objects are represented as having [Dretske]
4894 I say Mary does not have new knowledge, but knows an old fact in a new way [Perry on Jackson]
4895 Is it unfair that physicalist knowledge can be written down, but dualist knowledge can't be [Perry on Jackson]
4886 Mary knows all the physical facts of seeing red, but experiencing it is new knowledge [Jackson]
3360 Are pains pure qualia, or do they motivate? [Kim]
8209 Part of the folk concept of qualia is what makes recognition and comparison possible [Lewis]
4873 What is it like to notice an uncomfortable position when you are asleep? [Dennett]
6624 Dennett denies the existence of qualia [Dennett, by Lowe]
2584 Lobotomised patients can cease to care about a pain [Block]
3138 Arithmetic and unconscious attitudes have no qualia [Rey]
3142 Why qualia, and why this particular quale? [Rey]
4106 If someone removes their glasses the content of experience remains, but the quality changes [Crane]
2389 Sometimes we don't notice our pains [Chalmers]
2419 Why should qualia fade during silicon replacement? [Chalmers]
4905 Normal babies seem to have overlapping sense experiences [Carter,R]