Anil K Seth
<p>Dec 17, 2013 09:20 PM</p>
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video...one hour... pub Mar 1 2012 at</p>
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this is at Natl Instit of Advanced Studies... (? in Bangalore)</p>
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"we do not have to appeal to new phenom to understand consc (eg quantum phenomena)"
just enurobiology is prob enough....</p>
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OOBE... why do they have that experience...</p>
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giv e neuroscience a chance....</p>
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why measure consc...
brain based measures...</p>
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causal density...
and Integrative Information...</p>
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ways of measuring it...</p>
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hx of science.... need to be able to measure it...
a book "inventing temperature Chang 2004 book...</p>
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what would the equivalent be....</p>
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consc meter by David Chalmers....</p>
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Consc is the appearance of the world...</p>
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there is no world, no self, there is nothing... from Thomas Metzinger...</p>
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that annoying time between naps...</p>
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distinc btwn consc contents and consc level...</p>
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genl anesthesia: level...</p>
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primary and higher order consc... phenomenal, access,</p>
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man looking at tomato... but man can also say reflectively...
I am aware that I am seeing the tomato.</p>
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coma, anesthesia, deep sleep, light sleep, drowsy, awake (perhaps hyperaroused)....</p>
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behavioral measures....</p>
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objective measures... forced choice.. A or B</p>
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subjective measures... ask S ... did they see it and what is their confidence....</p>
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introspective measures.... it is essential</p>
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forced choice decision (can be done with blindsight.. w/o apparent consc)</p>
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subjective... some subjects may have difficult</p>
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primary vs higher order... if it is not higher order... S may have diffic retporting it...</p>
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Hans Berger... late 1920s... EEG high freq, low amplitude...</p>
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how consc are you... BIS bispectral index...</p>
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ERPs evoked potentials
synchrony... eg gamma band or beta band
widespread activation (frontal and parietal activation)</p>
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dynamical complexity...</p>
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can we say something abt the phenomenology of consc...
related to NCC... that have a privileged reln with consc...</p>
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how abt perfect correl with experiencing a dog....</p>
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but how does one get from a correl to consc... where is the explanatory link....
how to get explanatory purchase....</p>
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Dynamical complexity....</p>
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we experienc world from 1st person perspective...
egocentric and allocentric frameworks...</p>
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Access phenomenology...
he spent quite a few years in San Diego in Edelman lab (Giulio T had left)</p>
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every consc scene is differ and integrated... highly unique...</p>
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but a unified thing</p>
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eg now the heat of the room, sound of my voice, and image of Korean landscape art.</p>
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the terrain of complexity....</p>
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find ways that can conjoin integration and differentiation... if too integrated, then cannot have differentiation.</p>
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digital camera...... lots of indiv photo diodes....</p>
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idea is that</p>
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Leibniz... greatest diversityin combination the greatest order and harmony....</p>
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causal density... working on it for a # of years....</p>
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X1 causes X2... Clyde Granger....
Nobel for economics 10 yrs ago...
cause has to precede the effect...
does X1 have predictive info for X2 that is not already in X2.
use weighed combos....
use this to describe functional networks...</p>
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Causal density....
pick out middle ground (btwn too integrated and too independent...want max. dynamic complexity)</p>
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Tononi Integr Info theory IIT...</p>
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he did this with Granger causality as applie dto propofol anesthesia</p>
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8 subjects look at ACC and PCC
look at G-casualiayt ....
method is applic to stationary stochastic data...</p>
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bidirect. Granger causailty INCREASES when one loses consc.
... this is counterintuitive.... but this conveys slow waves..</p>
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Mammals, birds and cephalopods... octopus (with David Edelman)
but with people accurate verbal report...
how to around it with animals....</p>
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with mammals can see Thalamocort circuitry, also see other conserved mechs
eg low amplitude gamma etc. look for homologs in other animals...</p>
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but harder with birds, and octopi... brains are really difft
octopus... brain v large and complex but quite difft...
so, how to draw analogies...
but if causal density or IIT is useful perhaps can xfer to octopi...</p>
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trying to do octopus psychophysics with David Edelman...</p>
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are there equivs of binoc rivalry...</p>
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summarize: consc content and level...</p>
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modeling natural action selection...</p>
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ASSC will be held in Brighton in 2013...
in Europe once every 3 years... other yearsin Arizona...</p>
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compare to phased synchrony;</p>
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disparaging comment from aud. abt mutual information... he agrees and goes into detail...</p>
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*
French phenomenologist:</p>
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integraiton of interoceptive and exteroceptive perception (influed by Thomas Metzinger))
(view of how first person perspective arises)</p>
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