CHAPTER 3 COG PSYCH PERCEPTION AND MENTAL IMAGERY Flashcards
Both types of mental imagery are
visual and verbal imagery
behavioral evidence suggests…?
we manipulate mental images in a way that is similar to how we manipulate physical objects and places.
define our blind spot?
An area toward the outside of the visual field corresponding to where the optic nerve passes through the retina, and where there is no visual stimulation due to an absence of photoreceptors.
what is modal completion?
is the ability to see an entire object despite parts of it being covered by another object in front of it.
what is amodal completion?
the ability to see an entire object despite parts of it being covered by another object in front of it
what is visual cognition?
The field of psychology that studies how cognitive processes contribute to perception.
mental imagery (lecture)
Processing of perceptual-like information in the absence of
an external source for that information
mental imagery includes (lecture)
deliberately forming an image
rehearsing
daydreaming
planning layouts and routes
perception depends on what kind of info?
bottom up and top down information
bottom up information is …?
is the sensory input, such as an image coming through the eyes and falling on the retina (the light-sensitive part of our eyes), or sounds impinging on the ears, stimulating the cochlea.
information traveling “up” from the stimuli, via the senses, to the brain which then interprets it, relatively passively
retina is the part of the eye that
is very light sensitive
photorecpetors are
Specialized cells on the retina at the back of each eye, sensitive to light.
the center of the retina is the
fovea
densely packed photoreceptors are called
cones, and cone are Specialized cells on the retina at the back of each eye, sensitive to light.
extremely light sensitive photoreceptors are known as
rods, and rods come in handy when light is very dim.
sensation is the
stimulation of receptors
transduction is
The process by which physical signals from the environment are translated to neural signals the brain can use.
primary visual cortex is
The process by which physical signals from the environment are translated to neural signals the brain can use.
the feedforward system is
a hierarchical account of the flow of visual information processing, from rudimentary visual features to increasingly complex visual processing.
top down information is
perceiving things based on your prior experiences and knowledge. In other words, you use what you already know to make sense of the new information you encounter
unconscious ineference is
The perceptual process of making educated guesses based on visual clues, without being aware of this process.
Predicitove coding is
The ability of the visual brain to predict what input the eyes are about to receive.
object segmentation is
The visual assignment of the elements of a scene to separate objects and backgrounds.
figure ground organization
The perceptual segmentation of a visual scene into objects (“figure”) and backgrounds (“ground”).
For example, black words on a printed paper are seen as the “figure”, and the white sheet as the “background”