-
Sensation
the process by which our sensory receptors and nervous system recieve and recieve and represent stimulus energies from the environment.
-
Perception
the process of organizing an interpreting sensory information.
-
Bottom-up Processing
- analysis that begins with sensory receptors and works up to the brain's intergration of sensory info.
- detecting lines in a painting
-
Top-Down Processing
- Information processing guided by higher-level mental processes as when we construct perceptions drawing on our expectations and experience.
- consider painting's title and such to determine meaning
-
Psycho-physics
- the study of relationships between the physical characteristics of stimuli, such as their intensity, and our psychological experience of them.
- what do we detect?
- how does it affect us?
-
Absolute-Threshold
the minimum stimulation required to detect a stimulus 50% of the time
-
Signal Detection Theory
a theory predicting how and when we can detect the presence of very faint stimuli amid background stimulus.
-
Subliminal
below one's absolute threshold for concious awareness
-
Priming
- the--often unconcious--activation of of certain associations, thus predisposing one's perception, memory, or response.
- kittens versus werewolves (preference?)
-
Difference Threshold
the minimum difference between 2 stimuli required for detection 50% of the time.
-
Weber's Law
the principle that. to be perciv3ed as different, 2 stimuli must differ from a constant minimum of 10%
-
Sensory Adaptation
diminished sensitivity as a consequence of constant stimulation.
-
Selective attention
- also know as cocktail party effect
- the ablity to truely focus on only one particular stimulus
-
Innatentional Blindness
the failure to see what you're not focused on
|
|