Upcoming Reading Read experiment 1 in the article by Lee Brooks
for Thursday March 29th
Slide 2
Are All Subliminal Messages Intentionally Inserted? These
messages tend not to be clear and obvious
Slide 3
Are All Subliminal Messages Intentionally Inserted? These
messages tend not to be clear and obvious Could it be that our
brains mistakenly see or hear messages that arent really
there?
Slide 4
Are All Subliminal Messages Intentionally Inserted? These
messages tend not to be clear and obvious Could it be that our
brains mistakenly see or hear messages that arent really there? Do
brains make stuff up!?
Slide 5
Are All Subliminal Messages Intentionally Inserted? These
messages tend not to be clear and obvious Could it be that our
brains mistakenly see or hear messages that arent really there? Do
brains make stuff up!? Absolutely! All the time.
Slide 6
Are All Subliminal Messages Intentionally Inserted? Is there
really a dog or are the spots enough like a dog for your brain to
fill in the rest?
Slide 7
Are All Subliminal Messages Intentionally Inserted? Some other
examples you already know about : Missing fundamental, color
constancy, size constancy, the Kaniza triangle, stereo depth, the
blindspot, illusory conjunctions
Slide 8
Subliminal Messages Where you Least Expect Them How did Vokey
and Read test the idea that subliminal messages might just be a
case of mistaken perception?
Slide 9
Subliminal Messages Where you Least Expect Them They examined
passages from various sources (Jabberwokey and the 23rd Psalm)
played backwards to identify candidate messages
Slide 10
Subliminal Messages Where you Least Expect Them Listeners were
given each passage (backwards) and asked to listen for 12 possible
messages Listeners detected messages in the appropriate passage
when primed to expect it
Slide 11
Subliminal Messages Where you Least Expect Them Interpretation:
Your brain is remarkably good at active construction of patterns
amid a background of noise.
Slide 12
Subliminal Messages Where you Least Expect Them Interpretation:
Your brain is remarkably good at active construction of patterns
amid a background of noise. Creative listening by (well-meaning?)
public censors can go very wrong
Slide 13
Subliminal Messages Where you Least Expect Them Consider the
trial of Judas Priest Band sued for inserting the message do it
which allegedly lead to the suicide of two teens Listen for Do
ItThe do its
Slide 14
Subliminal Messages Where you Least Expect Them Consider the
trial of Judas Priest Band sued for inserting the message do it
which allegedly lead to the suicide of two teens Band acquitted on
the basis of expert testimony
Slide 15
Expert Testimony !
Slide 16
Subliminal Messages Where you Least Expect Them With enough
creativity and patience one can see subliminal messages just about
anywhere:
Slide 17
Subliminal Messages Where you Least Expect Them Our perceptual
mechanisms are great at extracting meaningful images from noisy
stimuli. For example - the famous face on Mars: Viking, 1976
Slide 18
Subliminal Messages Where you Least Expect Them Given a clearer
picture it looks a lot less like a face: Mars Global Surveyor,
2001
Slide 19
The message is Dont be fooled by messages!
Slide 20
Memory
Slide 21
Overview of Memory Atkinson-Shiffrin Model Sensory Signals
Sensory Memory Short-Term Memory Long-Term Memory ATTENTION
REHEARSAL RETRIEVAL
Slide 22
Sensory Memory Supplementary reading: Cognition (on reserve)
Averbach and Sperling (course pack) Part 1
Slide 23
Capacity Describe a simple experiment that could measure the
capacity of memory
Slide 24
Capacity Describe a simple experiment that could measure the
capacity of memory Briefly present some letters or digits and then
ask the subject to report them Called whole report
Slide 25
Capacity +
Slide 26
F S F E G S A U T O C G +
Slide 27
Capacity Recall as many letters as you can
Slide 28
Capacity George Sperling - Systematic investigation of memory
capacity Result: subjects accurately recall about 4 items What can
you conclude from this result? Maybe subjects can only hold about 4
items?