Presentation is loading. Please wait.

Presentation is loading. Please wait.

The Conscious Pilot Stuart Hameroff University of Arizona.

Similar presentations


Presentation on theme: "The Conscious Pilot Stuart Hameroff University of Arizona."— Presentation transcript:

1 The Conscious Pilot Stuart Hameroff University of Arizona

2 Non-conscious/ Unconscious Conscious Chalmers Easy problems Hard problem Crick/Koch Zombie modes Consciousness Block (?) Access Cs. Phenomenal Cs. McCrone Habitual Conscious Hodgson Auto-pilot

3 Non-conscious/ Unconscious Conscious Chalmers Easy problems Hard problem Crick/Koch Zombie modes Consciousness Block (?) Access Cs. Phenomenal Cs. McCrone Habitual Conscious Hodgson Auto-pilot Conscious pilot (SH)

4 Cognitive brain functions are conducted in either non-conscious or conscious modes Sensory processing Control of behavior Learning Memory Attention Sleep Eye movements Visceral/Sexual functions …either accompanied by consciousness, or not …what is the distinction?

5 Cognitive brain functions are conducted in either non-conscious or conscious modes Sensory processing Control of behavior Learning Memory Attention Sleep Eye movements Visceral/Sexual functions …either accompanied by consciousness, or not …what is the distinction? Gamma synchrony EEG

6 Non-conscious/ Unconscious Chalmers Easy problems Crick/Koch Zombie modes Block (?) Access Cs. McCrone Habitual Hodgson Auto-pilot …are accounted for by neuronal network computation based on axonal-dendritic feed-forward and feed-back synaptic networks…. Brain as computer with neuronal firings as bits …..classical neurocomputation…

7 We can explain the non-conscious computerized activities of the auto-pilot

8 We can explain the non-conscious computerized activities of the auto-pilot By computation in brain neuronal networks

9 Ramon-y-Cajal: brain composed of individual cells – neurons Computing in the brain…

10

11 Integrate

12 Fire

13

14

15

16

17

18

19

20

21

22

23

24

25

26 What about consciousness?

27 We can explain the computerized activities of the auto-pilot Wheres the pilot?

28

29

30 The conscious pilot (NCC) is dendritic synchrony, moving through the brains neuronal networks to mediate consciousness

31 Where in the brain does consciousness occur?

32 BING!!!

33 Consciousness with attention involves activity in both prefrontal and posterior regions.. …top-down, bottom-up, recurrent feedback ….more or less global

34 But sensations of pure color arise from isolated activity in visual cortex color area V4 (Zeki) BING!!!

35 Deeper emotional feelings occur in emotional core BING!!! Dopaminergic paths in VTA/nucleus accumbens cingulate/limbic emotional core So some process/activity is specific for consciousness

36 In the brain consciousness can occur Globally (e.g. attention-mediated, bottom-up/top-down; ?holographic) Locally (e.g. Zeki and pure color experience in V4) Regionally (posterior cortex, e.g. Malach; brainstem/limbic, Panksepp, Damasio) Here, there or everywhere

37 In the brain consciousness can occur Globally (e.g. attention-mediated, bottom-up/top-down; ?holographic) Locally (e.g. Zeki and pure color experience in V4) Regionally (posterior cortex, e.g. Malach; brainstem/limbic, Panksepp, Damasio) Here, there or everywhere Accompanied by gamma synchrony EEG

38

39

40

41

42 Sideways Synchrony Neuronal network dendrites linked by gap junctions (dendritic webs) depolarize coherently in gamma synchrony Dendritic post-synaptic potentials are synchronized, may drive coherent spikes

43 BING BING

44 Sideways synchrony Dendritic webs embedded in neuronal networks …allowing collective, synchronized integration phases in laterally-connected input/integration layers

45 BING BING BING

46 BING!!! The Halle Berry neuron (Koch)

47 BING!!! BING!!! BING!!! FIRE

48 In the brain..

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63 BING!!! CPU

64 Top/Up (Frontal cortex) BING!!! Down/Bottom (Thalamus; Posterior cortex)

65 Top (Frontal cortex) Intermediate BING!!! (Jackendoff, Gray) Handshake Bottom (Thalamus; Posterior cortex)

66 Top (Frontal cortex) Bottom Thalamus; Posterior cortex) BING!!! BING!!! BING!!! BING!!!

67 W H E R E S

68 T H E

69 B I N G ?

70

71

72

73

74

75

76

77

78 Caffeine THC Marijuana LSD Nicotine MDMA Ecstasy Chocolate Psychoactive drugs have quantum ring structures

79 ,

80

81

82

83

84

85

86

87

88

89

90 Conscious Anesthetized …in which anesthetic gases act via quantum London forces to selectively erase consciousness Hameroff S (2006) Anesthesiology 105: Proteins involved in conscious processes have quantum pockets controlling state: Schrödingers proteins

91 Wheres the BING?

92 quantum superposition of different states

93 Consciousness is linked to quantum gravity/ fundamental spacetime geometry Quantum superpositions which avoid decoherence grow to meet threshold Sir Roger Penrose given by E=h/t, undergo spontaneous self-collapse objective reduction a fundamental moment of consciousness Consciousness IS a sequence of quantum state reductions (e.g. Whitehead, Henry Stapp)

94 BING!!!

95 B I N G

96 BING!!! BING!!! BING!!! BING!!!

97 BING!!! BING!!! BING!!! BING!!! By E=h/t, a 25 msec gamma synchrony moment of consciousness requires superposition of tubulins in ~100,000 neurons

98

99 But the brain is too warm and wet for delicate quantum effects !? Decoherence Max Tegmark calculated microtubule decoherence Time based on solitons of seconds, too brief. Considering Orch OR stipulations Superposition separation of atomic nucleus diameter, 7 orders of magnitude more stable Debye plasma layer surrounding/shielding microtubules Ordered water polymerized actin gel state embedding microtubules Laser-like Frohlich pumped coherence Topological quantum error correction Hydrophobic pocket London forces Hagan, Hameroff and Tuszynski, Physical Reviews E, :061901

100 Tubulin subunits have negatively charged tails extending outward, attracting positive ions and creating a Debye plasma layer shield Quantum London forces are protected within hydrophobic pockets

101 Microtubules are transiently Embedded in dense actin gel (lower left); Isolated from environment

102 Microtubule Fibonacci lattice may be ideally designed for topological quantum error tolerance/correction (Penrose, 1998)

103 Theory is nice, but… Engel et al Nature 446, , 2007 Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems Quantum coherence in protein scaffolding surrounding chlorophyll structures in photosynthesis at warm temperatures

104 Ouyang & Awschalom (Science 301: , 2003) studied quantum spin transfer between quantum dots connected by benzene rings (the same as in electron resonance amino acids) and observed superposition of the spin states….

105

106

107 Wheres the BING?

108 OR BING

109 Essence of experience was embedded in fundamental spacetime geometry, reproduced in the brain BING!!

110 MindMatter Objective Decoherence or Reduction Measurement Quantum Spacetime Neutral Monism Quantum Consciousness

111 Conclusions Dendritic synchrony moves through the brains neurocomputational networks to mediate consciousness – the conscious pilot (NCC)

112 Conclusions Dendritic synchrony moves through the brains neurocomputational networks to mediate consciousness – the conscious pilot (NCC) Is conscious experience thick or thin? It depends on the conscious pilot

113 Conclusions Dendritic synchrony moves through the brains neurocomputational networks to mediate consciousness – the conscious pilot (NCC) Quantum computations in microtubules are coupled to dendritic synchrony by Penrose OR.

114 Conclusions Dendritic synchrony moves through the brains neurocomputational networks to mediate consciousness – the conscious pilot (NCC) Quantum computations in microtubules are coupled to dendritic synchrony by Penrose OR. To solve the hard problem, consciousness must be considered as a process in fundamental spacetime geometry coupled to brain function (psychophysical bridging to pan-protopsychism)

115 BING!!!


Download ppt "The Conscious Pilot Stuart Hameroff University of Arizona."

Similar presentations


Ads by Google