Key Definitions Flashcards
Neurotransmitter
Chemical substance released at the end of a nerve fiber into the synaptic cleft
Psychology
Scientific study of mind and behaviour.
Cognitive psychology
Study of human information processing
Binocular disparity
The difference in the retinal images of the two eyes that provides information about depth
Gestalt perceptual grouping rules
Simplicity, closure, continuity, similarity, proximity and common fate.
Simplicity
If there is more than one possible interpretation of a shape, the visual system will select the most simple or likeliest interpretation
Closure
Fill in missing elements of a visual scene
Continuity
Group together edges or contours that have the same orientation.
Similarity
Regions that are a similar color, lightness, shape, or texture are perceived as belonging to the same object.
Proximity
Objects close together tend to be grouped together
Common fate
Elements of a visual image that move together are perceived as parts of a single moving object.
Monocular depth cues
Aspects of a scene that yield information about depth when viewed with only one eye. Linear perspective, texture gradient, interposition, relative height.
Linear perspective
Parallel lines seem to converge as they recede into distance
Interposition
When one object partly blocks another, the blocking object is closer than the blocked object
Relative height and size
Objects closer to you tend to be lower in a visual scene whereas faraway objects are higher up in your field of view
