Thresholds and adaptation

Question 1

Absolute threshold

Answer 1

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

Question 2

Difference threshold (JND)

Answer 2

Difference in stimuli required to detect a difference between the stimuli

Question 3

Webners law

Answer 3

The difference threshold is a constant fraction of the original stimulus, and bigger stimuli require larger differences to be noticed (1-2 pounds vr 10 and 11)

Question 4

Sensory adaptation

Answer 4

the reduction in sensitivity after prolonged exposure to a stimulus

Question 5

Subliminal message

Answer 5

message presented below the threshold of conscious awareness