CogSci 200 Umich Exam 1. UPDATED ACTUAL Questions and
CORRECT Answers
Functions are mappings from ________ to ________ inputs, outputs
Probabilistic Inference The computation of posterior probabilities for query propositions given observed
evidence
The perceptual inference problem How do we get from the input (a 2D pattern of light on the retina) to the output (a
3D representation of reality)?
The only way to solve the perceptual inference problem assumptions
is to rely on
_________
Inverse Optics Problem The impossibility of knowing the world directly by means of light stimuli; arises
because of the ambiguity of light patterns projected onto the retina.
straight line assumption things tend to move in a straight line
rigidity assumption all points on a moving object are assumed to move in synchrony
occlusion assumption A moving object will progressively cover and uncover portions of a persisting
background
light assumption there is a single overhead light source
shadow assumption things that in a shadow are really lighter in color than what sensors detect
Bayes Rule describes the probability of an event, based on prior knowledge of conditions
that might be related to the event
blindsight cortical blindness with preserved subcortical processing
blindsight can detect... -simple shapes
-orientations of lines
-movement
-color
-emotional expressions and postures
-objects
blindsight can't detect... name or gender of the person whose emotions they have percieved
functional neuroanatomy of visual perception retina -> Lateral Geniculate Nucleus -> Visual Cortex -> Other Cortical Regions
lateral geniculate nucleus initial superficial processing
CORRECT Answers
Functions are mappings from ________ to ________ inputs, outputs
Probabilistic Inference The computation of posterior probabilities for query propositions given observed
evidence
The perceptual inference problem How do we get from the input (a 2D pattern of light on the retina) to the output (a
3D representation of reality)?
The only way to solve the perceptual inference problem assumptions
is to rely on
_________
Inverse Optics Problem The impossibility of knowing the world directly by means of light stimuli; arises
because of the ambiguity of light patterns projected onto the retina.
straight line assumption things tend to move in a straight line
rigidity assumption all points on a moving object are assumed to move in synchrony
occlusion assumption A moving object will progressively cover and uncover portions of a persisting
background
light assumption there is a single overhead light source
shadow assumption things that in a shadow are really lighter in color than what sensors detect
Bayes Rule describes the probability of an event, based on prior knowledge of conditions
that might be related to the event
blindsight cortical blindness with preserved subcortical processing
blindsight can detect... -simple shapes
-orientations of lines
-movement
-color
-emotional expressions and postures
-objects
blindsight can't detect... name or gender of the person whose emotions they have percieved
functional neuroanatomy of visual perception retina -> Lateral Geniculate Nucleus -> Visual Cortex -> Other Cortical Regions
lateral geniculate nucleus initial superficial processing
