test 1 Flashcards
(36 cards)
template model for patterns
- like barcode, scantron
- inefficient, irregular world, strict match
feature model of patterns
- neisser, spot the z study
- lettvin, frogs eye
- hubel and wiesel, cats eye
top down processing
- process whole object first
- influenced by knowledge
- avant and lydall, easier to mask yob than boy
- reicher, word superiority effect
- top down overrides repetition blindness
object recognition model of patterns
- objects made up of geons which we match to memory
- bottom up
- experience affects perception
- whole can be processed as fast as parts
prosopagnosia
- cant recognize faces
- the man who mistook his wife for a hat
apperceptive agnosia
cannot recognize whole patterns
associative agnosia
can combine features into whole but not associate with meaning
space based endogenous attention
internally direct attention
space based exogenous attention
attention directed by external cue
object based attention
lavie and driver, processed faster if on same line, overrides space based attention
filter (broadbent) vs attentuation (treisman) theory
- only process information we are attending to (disproved by shadowing task)
- significant words will be processed regardless of whether you’re paying attention
mental lexicon
-made up of logogens (word genesis), one for each word we know
how many neurons are in the brain
100 billion
parts of a neuron
nucleus>soma>axon(transfers information)>myelin sheath(insulator with gaps called nodes of ranvier>dendrite>synapse(where axon and dendrites connect)
action potential
electrical change from negative to positive
long term potentiation
change in the ease that connected neurons fire
thalamus
gateway to cortex, all messages pass through
corpus callosum
bridge between left and right hemisphere of brain
4 lobes of cortex
frontal- executive function, keeping track of information
parietal- attention
occipital- vision
temporal- language
contralaterality
control of each side of body is by opposite hemisphere
left hemisphere of brain controls
language, reading, etc
right hemisphere controls
patterns, faces, spatial, etc
dorsal stream vs ventral stream
where vs what
most cones are found in
foveal area