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Originally posted by ALOSTSOUL
Originally posted by Faiol
- all experienced are based on the people BELIEFS, so well, its kind of "manipulated"
Or are all beliefs based on these experiences?
INTRODUCTION The Penrose-Hameroff orchestrated objective reduction (Orch OR)
theory postulates quantum computation in microtubules (MTs) inside brain
neurons as an explanation for consciousness. Orch OR has been attacked by
McKemmish et al (Phys Rev E, 80:021912, 2009) who assert Orch OR in MTs is
biologically unfeasible, and unsalvageable. BACKGROUND MTs are cylindrical
lattices of peanut-shaped tubulin proteins. The basic Orch OR idea is that
discrete MT tubulin states act as information bits and quantum bits (qubits) in
MT computers inside brain neurons. Orch OR suggests MT tubulin qubits switch
coherently and compute by entanglement with other tubulins, performing quantum
computations which self-collapse by Penrose objective reduction.
SPECIFIC CRITICISM OF ORCH OR McKemmish et al focus on switching between
discrete tubulin bit and qubit states, describing tubulins flexing between two
conformations (shortening by ~3%) depending on GTP hydrolysis to GDP. They
assert such GTP-dependent switching is involved in MT ?treadmilling? in
which MTs polymerize at one end and depolymerize at the other, finding such
conformational switching too slow for Orch OR.
Originally posted by ZeuZZ
Funny thing is that after airing this documentary the BBC refused to ever air it again, and stopped it being sold on DVD. Maybe as they didn't want to be promoting "fringe theories".
- all people seem to see relatives in their experience, thats just nuts, imagine if when you die, you will keep your body image, be in the same place as everyone else, waiting and helping the ones who are alive ... thats just like a HEAVEN like description and for me it doesnt make sense - all experienced are based on the people BELIEFS, so well, its kind of "manipulated"
While the endogenous hallucinogens, N,N-dimethyltryptamine, 5-hydroxy-N,N-dimethyl-tryptamine and 5-methoxy-N,N-dimethyltryptamine, have been acknowledged as naturally occurring components of the mammalian body for decades, their biological function remains as elusive now as it was at the time of their discovery. The recent discovery of the trace amine associated receptors and the activity of '___' and other hallucinogenic compounds at these receptor sites leads to the hypothesis that the endogenous hallucinogens act as neurotransmitters of a subclass of these trace amine receptors. Additionally, while activity at the serotonin 5-HT2A receptor has been proposed as being responsible for the hallucinogenic affects of administered hallucinogens, in their natural setting the 5-HT2A receptor may not interact with the endogenous hallucinogens at all. Additionally 5-HT2A agonist activity is unable to account for the visual altering effects of many of the administered hallucinogens; these effects may be mediated by one of the endogenous hallucinogen trace amine receptors rather than the serotonin 5-HT2A receptor. Therefore, activity at the trace amine receptors, in addition to serotonin receptors, may play a large role in the sensory altering effects of administered hallucinogens and the trace amine receptors along with their endogenous hallucinogen ligands may serve an endogenous role in mediating sensory perception in the mammalian central nervous system. Thus the theory proposed states that these compounds act as true endogenous hallucinogenic transmitters acting in regions of the central nervous system involved in sensory perception.