Week 4 Quiz - Perception and Action Flashcards
High acuity vision is mediated by the __________
Fovea
Collectively, the Rods and Cones are known as ____________
Photoreceptors
Mammals without cones tend to A) be blind, or B) be nocturnal
B) Be nocturnal
Another name for the Primary Visual Cortex is _________
The Striate Cortex
How is the retina-genicular-striate system organised?
Retinotopically
The manner in which visual information is carried from the retina to the cortex results in information from one side of the visual field being transmitted to the _____________ hemispheres
Opposite
Some neurons in V1 show _____________ selectivity
Orientation
The Dorsal Stream flows from Primary Visual Cortex to __________ Cortex and then to ________ _________ Cortex
Extrastriate, Posterior Parietal
According to Ungerleider and Mishkin’s classic characterization of the dual visual streams, “where” is to “what” as
Dorsal Stream is to Ventral Stream
Goodale and Milner have argued that the respective functions of the Dorsal and Ventral Streams are “Vision for _________” vs “Vision for _________”
Action, Perception
If a woman had damage to her Dorsal Stream, she would have substantial difficulty making accurate __________ under visual control
Movements
The organization of the Cortical Visual Stream is
Parallel and Hierarchical
The conscious perception of visual stimuli corresponds to activity patterns in the __________ visual areas
Secondary
The conflation of illumination, reflectance and transmission in the retinal image is an example of the _________ optics problem
Inverse
The phenomenon that the same stimuli can be perceived as being of different colours is
Colour Contrast
The phenomenon that different stimuli can be perceived as being of the same colour
Colour Constancy
Stimulus travels from the eye to the thalamus, to the primary visual cortex, to the ___________ visual cortex
Secondary
Receptor cells do not become active until the stimulus _________ the minimum intensity level
Exceeds
____________ is the adjustment of the sensory system’s sensitivity to the current environment, and to important changes in the environment
Adaptation
What type of vision can be described as sensitivity to low levels of ambient light?
Night Vision
Birds and insects can see UV light, due to their photoreceptors being more sensitive to __________ wavelengths
Shorter
The number and distribution of _____________ determines how well we can discern stimuli
Photoreceptors
Rapid eye movements called _______, occur every 3-4 seconds
Saccades
The representation of information from the _________, takes up more than 50% of the visual cortex, due to the densely packed photoreceptors
Fovea
