Intro

Question 1

Sensation

Answer 1

Passive process of bringing information from outside world into body and brain

Question 2

Perception

Answer 2

Active process of selecting, organizing, and interpreting information brought to the brain by senses

Question 3

Types of thresholds

Answer 3

Absolute and difference (JND)

Question 4

Measuring Absolute threshold

Answer 4

1) method of constant stimulus
2) method of limits
3) method of adjustment

Question 5

Difference threshold

Answer 5

Smallest detectable difference between two stimuli, or minimum change in a stimulus, that enables it to be correctly judged as different from a reference stimulus

Question 6

Weber’s Law

Answer 6

Principle describing relationship between stimulus and resulting sensations; JND is constant fraction of comparison stimulus

Question 7

Steven’s Power Law

Answer 7

Principle describing relationship between stimulus and resulting sensation; perceived magnitude is proportional to stimulus magnitude raised to exponent