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All the ideas for 'Unconscious Cerebral Initiative', 'Scepticism' and 'What Metaphors Mean'

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6 ideas

19. Language / F. Communication / 6. Interpreting Language / d. Metaphor
Metaphors just mean what their words literally mean [Davidson]
     Full Idea: Metaphors mean what the words, in their most literal interpretation, mean, and nothing more.
     From: Donald Davidson (What Metaphors Mean [1978], p.30)
     A reaction: This pronouncement must be the result of Davidson anguishing over the truth conditions for metaphors, which are usually either taken to have a 'metaphorical meaning', or to be abbreviated similes. He solved his problem at a stroke! Plausible.
We accept a metaphor when we see the sentence is false [Davidson]
     Full Idea: It is only when a sentence is taken to be false that we accept it as a metaphor.
     From: Donald Davidson (What Metaphors Mean [1978], p.40)
     A reaction: This strikes me as a very nice and true generalisation, even though Davidson mentions "no man is an island" as a counterexample. We thirst for meaning, and switch to a second meaning when the first one looks peculiar.
Understanding a metaphor is a creative act, with no rules [Davidson]
     Full Idea: Understanding a metaphor is as much a creative endeavour as making a metaphor, and as little guided by rules.
     From: Donald Davidson (What Metaphors Mean [1978], p.29)
     A reaction: This is good news for literature studies courses. Davidson's point is that the metaphor itself only gives you a literal meaning, so it doesn't tell you how to interpret it. It seems an attractive proposal.
20. Action / B. Preliminaries of Action / 2. Willed Action / a. Will to Act
Libet says the processes initiated in the cortex can still be consciously changed [Libet, by Papineau]
     Full Idea: Libet himself points out that the conscious decisions still have the power to 'endorse' or 'cancel', so to speak, the processes initiated by the earlier cortical activity: no action will result if the action's execution is consciously countermanded.
     From: report of Benjamin Libet (Unconscious Cerebral Initiative [1985]) by David Papineau - Thinking about Consciousness 1.4
     A reaction: This is why Libet's findings do not imply 'epiphenomenalism'. It seems that part of a decisive action is non-conscious, undermining the all-or-nothing view of consciousness. Searle tries to smuggle in free will at this point (Idea 3817).
Libet found conscious choice 0.2 secs before movement, well after unconscious 'readiness potential' [Libet, by Lowe]
     Full Idea: Libet found that a subject's conscious choice to move was about a fifth of a second before movement, and thus later than the onset of the brain's so-called 'readiness potential', which seems to imply that unconscious processes initiates action.
     From: report of Benjamin Libet (Unconscious Cerebral Initiative [1985]) by E.J. Lowe - Introduction to the Philosophy of Mind Ch.9
     A reaction: Of great interest to philosophers! It seems to make conscious choices epiphenomenal. The key move, I think, is to give up the idea of consciousness as being all-or-nothing. My actions are still initiated by 'me', but 'me' shades off into unconsciousness.
27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement
We only see points in motion, and thereby infer movement [Rescher]
     Full Idea: We perceive motion only as isolated points, and then infer it without actually seeing it.
     From: Nicholas Rescher (Scepticism [1980], §112)
     A reaction: Note how writing suddenly becomes readable as you slow down on entering a railway station. Is that points suddenly becoming unified? This is an empiricist endorsement of Russell's 'at-at' account of motion.