Term
|
Definition
| detecting physical energy from the environment and encoding it as neural signals |
|
|
Term
|
Definition
| analysis that begins with the sense receptors and works up to the brain's integration of sensory information |
|
|
Term
|
Definition
| information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations |
|
|
Term
|
Definition
| minimum stimulation needed to detect a particular stimulus 50 percent of the time |
|
|
Term
|
Definition
| theory that predicts how and when we detect the presence of a faint stimulus ("signal") amid background stimulation ("noise") |
|
|
Term
|
Definition
| below one's absolute threshold for conscious awareness |
|
|
Term
|
Definition
| minimum difference between two stimuli required for detection 50 percent of the time (just noticeable difference) |
|
|
Term
|
Definition
| principle that two stimuli must differ by a constant minimum percentage (rather than constant amount) to be perceived as different |
|
|
