Week 4 Flashcards
IDENTIFICATION
from Bottom-up processing to Top-down processing
Visual Perception
IDENTIFICATION: Spatial Frequencies
Has many bars in a given distance (fine detail)
High Frequency Grating
IDENTIFICATION: Spatial Frequencies
Has a more subtle difference in tensity between bars such as a dark gray next to black (rough idea of large objects and shadows)
Low Frequency Grating
IDENTIFICATION: Perception of Depth
Require the use of only one eye.
Monocular Cues
IDENTIFICATION: Perception of Depth
Eyes produce overlapping but slightly different images of the visual field.
Binocular (two eye) cue
IDENTIFICATION: Perception of Depth
the different images in the retina
Retinal Disparity
TRUE OR FALSE:
Red, Green and Blue lights can be mixed to generate all colors (primary colors of light)
TRUE
IDENTIFICATION: Disorders of the Visual System
Occurs when one eye cannot focus on objects.
Amblyopia “lazy eye”
IDENTIFICATION: Disorders of the Visual System
Result from clouding of the lens of the eye.
Cataracts
IDENTIFICATION: Disorders of the Visual System
The person can see well when looking atcclose objects but the ability to see objects in the distance is impaired; Eyeball is slightly elongated
Myopia or Nearsightedness
IDENTIFICATION: Disorders of the Visual System
Distance vision is good but close objects will be blurry; The eyeball is too short.
Hyperopia or Farsightedness
IDENTIFICATION: Disorders of the Visual System
Unevenness in the shape of the cornea
Astigmatism
IDENTIFICATION: Disorders of the Visual System
Occurs when vision in the best eye cannot be corrected to better than
Blindness
IDENTIFICATION: Disorders of the Visual System
Regions of blindness in visual field caused by stroke, physical injury to visual cortex.
Scotoma
IDENTIFICATION: Disorders of the Visual System
Inability to recognize familiar faces; Damage to the fusiform gyrus
Prosopagnosia
TRUE OR FALSE: Disorders of the Visual System
Some cases of Prosopagnosia are developmental
TRUE
TRUE OR FALSE: Disorders of the Visual System
There is a treatment for Scotoma
FALSE; there is no treatment
TRUE OR FALSE: Disorders of the Visual System
There is no treatment for Prosopagnosia
TRUE
IDENTIFICATION:
Specialized neurons that respond to specific types of stimuli.
Sensory Receptors
TRUE OR FALSE:
Sensation occurs when sensory information is detected by a sensory receptor.
TRUE
IDENTIFICATION:
The conversion from sensory stimulus energy to action potential.
Transduction
