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Entropy clocks in the brain Position1 #109307 Eddington hypothesized that our perception of the direction of time aligns with the thermodynamic arrow because our brains contain entropy-clocks that align the psychological and thermodynamic arrows.

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The Arrow of Time »The Arrow of Time The Arrow of Time ☜A map exploring some issues concerning the nature of time that lie at the boundary of physics and philosophy. The map follows up a talk to the Blackheath Philosophy Forum on 2 April 2011 by Huw Price, Professor of Philosophy and director of the Center for Time at Sydney University.☜F1CEB7

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The experience of time »The experience of timeThe experience of time☜This branch of the map considers the phenomenology of time - the various ways in which time presents itself directly to our consciousness. Why do we think time has the features indicated by the passage view? The answers will hopefully enable us to connect the phenomenological to the physical.☜FFB597

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Passage view components »Passage view componentsPassage view components☜The passage view refers to three aspects of how we perceive time - that it flows, has a direction and that there is a distinguished present moment - and claims that each corresponds to a feature of the real world. These matters are considered in this part of the map.☜FFB597

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Flow and direction of time? »Flow and direction of time?Flow and direction of time?☜What underlies our sense that time flows - that there is a continuous process where the future is realized in the present and then recedes into the past? Are we directly observing a feature of the real world through the private door of consciousness (Eddington) or is something else going on?☜FFB597

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Memory accretion hypothesis »Memory accretion hypothesis Memory accretion hypothesis ☜At all times we are aware of a stock of memories of an ordered succession of events, each with a rough or precise time-stamp. We are also aware that the stock is being constantly added to - a process of accretion. This gives rise to the sense of time flowing in the direction that memories are added.☜59C6EF

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Direction is that of memory accretion »Direction is that of memory accretionDirection is that of memory accretion☜By convention, we identify the forward direction of the psychological arrow of time is with the direction in which our stock of memories grows.☜9FDEF6

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Why aligned with thermodynamic arrow? »Why aligned with thermodynamic arrow?Why aligned with thermodynamic arrow?☜If memory accretion accounts for the psychological arrow of time, why are the psychological and thermodynamic arrows aligned. We dont recall instances of eggs unscrambling or shattered glass spontaneously re-assembling. Why is this so?☜FFB597

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Entropy clocks in the brainEntropy clocks in the brain☜Eddington hypothesized that our perception of the direction of time aligns with the thermodynamic arrow because our brains contain entropy-clocks that align the psychological and thermodynamic arrows.☜59C6EF

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Mental clocks and neurology »Mental clocks and neurologyMental clocks and neurology☜Does modern neurology shed any light on the hypothesis that the human brain contains internal time-keeping mechanisms? Do any of these correspond to Eddingtons hypothesized entropy clock?☜FFB597

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Some weak evidence for entropy clocks »Some weak evidence for entropy clocksSome weak evidence for entropy clocks☜Since Eddingtons time extensive neurological and psychological studies have sought to identify time-keeping mechanisms in the brain. Some hypothesized mechanisms are based on the rate of decay of memories, which would be aligned with the direction of increasing entropy (see citation).☜98CE71

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Link[1] Entropy clocks in the brain (book excerpt)

Author: Arthur Eddington
Cited by: Peter Baldwin 5:00 AM 21 May 2011 GMT
Citerank: (2) 103807The experience of timeThis branch of the map considers the phenomenology of time - the various ways in which time presents itself directly to our consciousness. Why do we think time has the features indicated by the passage view? The answers will hopefully enable us to connect the phenomenological to the physical.8FFB597, 112959Direct experience hypothesisThe passage of time is a distinct aspect of reality which we experience directly and which is made accessible to us through the 'private door' (Eddington) of consciousness.959C6EF
URL:

http://books.google.com.au/books?id=PGOTKcxSqMUC&pg=PA93&lpg=PA93&dq=time's+arrow+why+are+we+concerned+about+the+future&source=bl&

Excerpt / Summary

"It seems to me, therefore, that consciousness with its insistence on time's arrow and its rather erratic ideas of time measurement may be guided by entropy-clocks in some portion of the brain. That avoids the unnatural assumption that we consult two different cells of the material brain in forming our ideas of duration and of becoming, respectively. Entropy-gradient is then the direct equivalent of the time of consciousness in both its aspects. Duration measured by physical clocks (time-like interval) is only remotely connected."

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Entered by:- Peter Baldwin
NodeID: #109307
Node type: Position
Entry date (GMT): 5/21/2011 4:43:00 AM
Last edit date (GMT): 8/18/2011 3:09:00 AM
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