Perception Flashcards
as experiences resulting from stimulation of the sensations
Perception
concious outcome of sense organs and projection regions.
sensation
a mental representation of a stimulus that is perceived.
percept
refers to a fact that perceptions are built from sensory input
botton up processing
how we interpret sensations influenced by our available knowledge, our experiences, and out thoughts.
Top-down processing
we often dont perceive stimuli that remain relatively contant over prolonged periods of time.
sensory adaptation
inability to identify a stimulus when it is embeddwd in a distracting background
Signal detection theory
4 types pf bottom-up theories
Direction perception
template theories
feature theories
recognition by components theory
the information in our sensory receptors is all we need to perceive anything.
direct perception
suggest that we have stored in our minds myriad sets of templates.
Template theories
4 kinds of demons
Image demons, Cognitive demons, Feature demons, Decision demons
Oliver Selfridge’s Pandemonium Model
Feature matching/theories
we quickly recognize objects by observing the edges of them and then decomposing the objects into geons
Recognition by components theory
absorption of physical energy by receptors
reception
translation of physical energy into electrochemical activity
Transduction
relationship between aspects of the physical stimulus and resultant nervous system activity
Coding