Sensation and Perception

Question 1

sensation

Answer 1

When sensory information is detected by a sensory receptor

Question 2

transduction

Answer 2

The conversion from sensory stimulus energy to action potential

Question 3

Absolute threshold

Answer 3

the minimum amount of stimulus energy that must be present for the
stimulus to be detected 50% of the time

Question 4

subliminal messages.

Answer 4

messages that are presented below the threshold for conscious
awareness

Question 5

difference

threshold or jnd

Answer 5

difference threshold changes depending on the stimulus

intensity. (sensitivity to the stimuli is different based on the environment)

Question 6

Perception

Answer 6

way sensory information is organized, interpreted, and consciously experienced

Question 7

Bottom-up processing

Answer 7

refers to the fact that perceptions are built

from sensory input

Question 8

top-down processing

Answer 8

how we interpret those sensations is influenced by our available
knowledge, our experiences, and our thoughts

Question 9

sensory adaptation

Answer 9

when we don’t perceive stimuli that is generally constant over long periods of time

Question 10

inattentional

blindness

Answer 10

Failure to notice something that is completely visible because of a lack of attention

Question 11

signal detection theory

Answer 11

The ability to identify a stimulus when it is

embedded in a distracting background