Vision Flashcards
(38 cards)
Dark adaption
Same physical environment, different visual experiences at different stages of dark adaption
- Vision is not a clear window onto reality
T or F: Vision is a clear window onto reality
FALSE
Motion aftereffect
Static image, perceived motion
Visual illusion: Moon
the moon looks larger on the horizon than when its high in the sky
Visual completion
T-junctions indicate occlusion
- Continuous: horse & cat
- Visual completion type 2: illusory contour
Impossible objects
Optical illusion
- 3 legs 2 head
Two hemisphere are connected by ____
corpus callosum
Brain-body is dominated by _____ correspondence
Contra-lateral
- left hemisphere: right body
- right hemisphere: left body
T or F: two hemispheres do not have identical functions
True
- left hemisphere is important for speech in most people (95%)
T or F: cutting the corpus callosum leads to split brain
true
Predators have eyes in the ___; pray have eyes to the ____
front; side
T or F: the two eyes have overlapping visual field
true
Input from left eye go to which hemisphere
Both
Nasal input goes to
Right hemisphere
Temporal part goes to
left hemisphere
Anatomical separation
Electrophysiological recording in monk inferotemporal cortex (IT): face cells
- Bars represent neural “spikes” or firing
- More spikes = greater response
- Prefers face stimulus!
Electrophysiological recording in monkey inferotemporal cortex (IT)
non-face cells
Intracranal electrode recording in ____
epilepsy
Prosopagnosia
Impairment in recognizing other individuals by their faces
Object agnosia
.
Patient CK
impaired object recognition, intact face recognition
- CK is agnosic - cant process objects
Inversion effect
normal subjects show a much slower RT and lower accuracy for upside-down faces than for other categories
Faces are processed _____
configurally (holistically)
5 cognitive modules
- Domain specific
- Innate maybe?
- Hard wired in the brain
- Informationally encapsulated
- Mandatory
