Combining Texts

Ideas for 'fragments/reports', 'Introduction to the Philosophy of Mind' and 'Causal Powers'

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11 ideas

12. Knowledge Sources / B. Perception / 3. Representation
One must be able to visually recognise a table, as well as knowing its form [Lowe]
     Full Idea: A bare knowledge that tables have a particular form will not enable one to recognise a table visually, unless one knows how something with such a form typically appears or looks from a variety of different angles.
     From: E.J. Lowe (Introduction to the Philosophy of Mind [2000], Ch. 6)
     A reaction: This seems to be a rather significant point, if we are trying to work out how concepts and models operate in the process of perception. Lowe points out that with electrons, we have some knowledge of the form, but no capacity for recognition.
Computationalists object that the 'ecological' approach can't tell us how we get the information [Lowe]
     Full Idea: Computational psychologists object to the 'ecological' approach to perception (with its externalist, direct realist picture), because it leaves us entirely in the dark as to how our senses 'pick up' information about the environment.
     From: E.J. Lowe (Introduction to the Philosophy of Mind [2000], Ch. 6)
     A reaction: I find myself siding with the computationalists, but then I have always favoured the representational view of perception among philosophers. Lowe comments that both approaches neglect actual experience. We construct models, e.g. of London.
Comparing shapes is proportional in time to the angle of rotation [Lowe]
     Full Idea: When two objects, one of them rotated, are compared, the length of time it takes the subjects to determine they are of the same shape is roughly proportional to the size of angle of rotation, ...which suggests analogue modes of representation.
     From: E.J. Lowe (Introduction to the Philosophy of Mind [2000], Ch. 7)
     A reaction: I consider this to be highly significant for our whole understanding of the mind, which I think of as a set of models organised like a database. Think about the weather, phenomenalism, London, the Renaissance, your leg. You play with models.
12. Knowledge Sources / B. Perception / 4. Sense Data / d. Sense-data problems
We experience qualities as of objects, not on their own [Harré/Madden]
     Full Idea: It seems clear that we are never presented with a quality except of some object.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: I'm not convinced that that 'seems clear'. The idea of sense-data is that while it seems to be of an object, reason suggests that the experience of the quality must precede the object assembled thereby. How do you arbitrate?
The 'disjunctive' theory of perception says true perceptions and hallucinations need have nothing in common [Lowe]
     Full Idea: The 'disjunctive' theory of perception says that we have either veridical perception or else hallucination, but there is no common element in the form of a 'perceptual experience' which would be present in either case and merely caused in different ways.
     From: E.J. Lowe (Introduction to the Philosophy of Mind [2000], Ch. 6)
     A reaction: McDowell is associated with this view. It seems to be another attempt to get rid of sense-data. It seems odd, though, to say that a hallucination of a dagger has nothing in common at all with experience of real daggers. Why did hallucinations evolve?
12. Knowledge Sources / B. Perception / 6. Inference in Perception
Inference in perception is unconvincingly defended as non-conscious and almost instantaneous [Harré/Madden]
     Full Idea: To the objection that one is never aware of inferences in sensation, the unconvincing reply comes that such inferences are automatic, telescoped, non-discursive and unconscious.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: I think the 'unconvincing' reply is a bit more convincing in the light of modern research on the brain, which presents everything it does in a far less conscious light than the traditional view. Even reason seems barely conscious.
12. Knowledge Sources / B. Perception / 7. Causal Perception
A causal theorist can be a direct realist, if all objects of perception are external [Lowe]
     Full Idea: A causal theorist can be a 'direct realist' in the sense that he can hold that the only objects of perception are external objects.
     From: E.J. Lowe (Introduction to the Philosophy of Mind [2000], Ch. 6)
     A reaction: There still seem to be problems with perceiving reflections, or very distant objects (the time-lag problem), or perceiving 'secondary' qualities.
If blindsight shows we don't need perceptual experiences, the causal theory is wrong [Lowe]
     Full Idea: If we don't need to have perceptual experiences in order to see things (as 'blindsight' might suggest), the causal theory of perception cannot be correct.
     From: E.J. Lowe (Introduction to the Philosophy of Mind [2000], Ch. 6)
     A reaction: This is because the causal theory implies a chain of events culminating in experience as the last stage. There is no suggestion, though, that unconscious perception would be non-causal, as it bypasses all the problems about consciousness.
12. Knowledge Sources / B. Perception / 8. Adverbial Theory
How could one paraphrase very complex sense-data reports adverbially? [Lowe]
     Full Idea: How could one paraphrase the sense-datum report 'I am aware of a red square sense-datum to the right of a blue round sense-datum' in an adverbial way? 'I am appeared to redly and squarely and roundly and bluely'?
     From: E.J. Lowe (Introduction to the Philosophy of Mind [2000], Ch. 5)
     A reaction: It is a nice question, but not an instant refutation of the adverbial theory. Vision may be a complex tangle of modes of seeing things, rather than a large collection of sense-data. As I look out of the window, how many sense-data do I experience?
12. Knowledge Sources / D. Empiricism / 2. Associationism
Humean impressions are too instantaneous and simple to have structure or relations [Harré/Madden]
     Full Idea: The Humean event, the impression, basic to his epistemology, is, as we have seen, instantaneous in nature, punctiform and elemenentary, and from this characterisation follows its atomicity, its lack of internal connections with anything else.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: This simple point about Humean associationism is the key to grasping the whole hideous worldview that has gripped twentieth century philosophy. How many impressions make up an apple? And why do they sum to make something?
12. Knowledge Sources / E. Direct Knowledge / 4. Memory
There are memories of facts, memories of practical skills, and autobiographical memory [Lowe]
     Full Idea: Memory of facts is quite different from memory of practical skills, and both are quite distinct from what is sometimes called personal or autobiographical memory.
     From: E.J. Lowe (Introduction to the Philosophy of Mind [2000], Ch.10)
     A reaction: If we accept David Marshall's proposal (Idea 6668), then all of the mind is memory, of many different types, and so the above analysis will be much too simple.