Chap 1 Consc Enters the Lab

Feb 17, 2014 06:34 PM

start of CHAP 1 is 283 on Kindle...

fig 3  TROXLER fading... 12 dots durrounding fixation cross.

Crick and Koch in the 1990s..

distinguising heat from tem... key to making progress.

CONSC  many lay meanings.

consc access is the key well-defined question.

disting from ATTENTION: Wm James:  the taking possess by the mind in clear and vivid form of ONE  of

several simult poss objects.

La Creme de la creme... outcome of very complex sieve called ATTENTION.

on the basis of salience or relevance to our goals.

ATTN must operate outside of awareness.  attnal process must operate outside of awareness...

amplifying some info and squashing other info.

selective attn and consc access are distinct processes.....

Consc as wakefulness or vigilance.  even these are distinct... sleep/wake vs level of arousal/ excitment.

CONSC as self consc...  I as an esential pice  loc 383...

Damasio... the SELF in the act of knowing...

Gordon Gallup  mirror self recogn test.   kids see the red spot using a mirror btwn 18 and 24 months.

Chimps, gorillas, can pass the test...

Cambridge Decl on Consc  July 2012...humans are not unique.

SELF consc... self is just one thing we can be consc of... my body, my feelings, my thoughts.

self consc seems to include a strange loop.

starting point:  better off starting with consc access and setting apart  ATTN, wakefulness, vigilance,

self-consc,a dn metacognition.

loc 427  Minimal Contrasts

experiemtnal basis for studying consc.  can make pictues, words and even movies invisible!

1989  BAARS:  minimal contrast:. the stimulus remains almost the same:

all that changes is consc access.

what tracks the switch from consc to unconsc.

regions of PFC activate whenever consc access occurs.

why do the dots fade in fig 3 Troxler fading...

might be evolved mech:  we filter it out...  retina with blind spot and with retinal vessels.

FILLING IN.

loc 456  Cog Sci TOOLKIT

456   RIVAL IMAGES  binoc rvalry.

Wheatstone  1838  depth disparity... depth percep.  bilt stereoscope; to study it

Nikos Logothetis  binoc rivalry in monkeys.  (paper was in 1999)

continuous flash suppression.

Cons cannot apprehend 2 objects at the same location;

Rivalry is an apt metaphor.

Peng Shang  U Minn...   tags each image with a frequency... can then pick up on EEG

Rivalry requires an active ATTENTION...   (the 2 tags co-occur during inattention).

508 Attentional blink...  if second letter is shown within 100 msec of first then it is not seen.

523  Rivalry requires an active attentive observer  (shown using frequency tagging)

loc 560  can only process one stim at a time...  psych REFRACTORY PERIOD.

INATTENTIONAL BLINDNESS:  chess players, mathematicians...

expt:  look at top of screen when letter appears (then expt flashes big stim in middle... oblivious).

Invisible Gorilla...  Dan Simons and Chris Chabris...

Kevin O'Regen Ron Rensink  change blindness...

Whodunnit... we miss 21 changes... qv.  LOOK OUT FOR CYCLISTS!!!

MASKING and subliminal images... fig 7...

trails that are COSNC =>  massive cdhange in avaialbiity of info.

we can nae it, rate it, memorize it..

in a 2001 review  Lionel Naccache and I:  summarized this:  subjective reports are the key phenom

that must be recorded... the constit the primary data.

must take  phenom reports seriously as data to be explained  (but not veridical truth abt objec reality).

Olaf Blanke:  OOBEs   hovering near the ceiling  looking down at theri inert bodies up there.

Blanke R TPJ//  involved in OOBEs.

loc 737

vision + somatosens + kinesthetic systems... body's map of touch, muscul and aciton segnals +

vestib system.

751  OOB state moved from parapsych curiosity to mainstream neurosci.   provide raw material.