Ifat 2 Flashcards
Capgras syndrome has problems between the
Occipital lobe and amygdala
Lateralization
Function is only produces in one hemisphere
Which section is the primary visual cortex
V1
The dorsal stream is also known as
The occipitoparietal stream
The dorsal stream is the ____ pathway
Where pathway
The dorsal stream takes part in
Vision for action
The dorsal stream goes from
V1 to posterior parietal
The ventral stream is also known as
The occipitotemporal stream
The ventral stream is the ____ pathway
What pathway
The ventral stream is responsible for
Object recognition
The ventral stream has cross communication between
Vision and memory
V1 is responsible for
Segregating patterns of vision fromotor signals
V2 is responsible for
3D vision
Seeing camouflage
More complex patterns
Dynamic form is
Taking in information of objects in motion
V3 is responsible for
Shape perception
Dynamic form
V4 is responsible for
Color area and shape perception
V5 is responsible for
Motion area
Lesions to the V1 result in
Blindsight (unconscious detection of vision)
Lesions to the V4 result in
Failure to recognize color
See things in shades of gray
Lesions to the V5 result in
Failure to take in information of objects in motion
Stilted vision
Can’t perceive objects are moving
Vision for action
Visual processing required to direct specific movements (like grabbing a cup)
Action for vision
Viewer actively searches for only part of the target object and attends selectively to it
- tend to scan more of the left visual field when looking at faces
Visual recognition
Recognition of objects and ability to respond to visual information
Visual space
Visual information comes from specific locations in space and assign meaning to objects
Egocentric visual space
Location of objects relative to body
Allocentric visual space
Object to object relations
Visual attention
Selectively only attend to one object and not another
- more volitional
- temporal and parietal lobe implicated
Apperceptive visual agnosia
Failure of object recognition where basic visual functions preserved
Associative visual agnosia
Inability to recognize objects despite their apparent perception
Most agnosias are attributed to lesions near
The occipitotemporal border
Prosopagnosia
Inability to recognize faces, including your own
Visuospatial agnosia
Inability to find one’s way around familiar environments (typical in Alzheimer’s patients)
Visual imagery
Cannot recognize objects but can imagine them and draw them in detail from memory
