module 17

Question 1

What is Weber’s law?

Answer 1

The difference threshold is a constant proportion of the original stimulus; the bigger the stimulus, the bigger the change needed to notice a difference.

Example: You will notice a change from 11 lbs to 15 lbs, but not from 7 lbs to 100 lbs because the proportion is smaller.

Question 2

What is sensory adaptation?

Answer 2

Your senses adjust to constant stimulation and stop responding strongly.

Question 3

What is a perceptual set?

Answer 3

A mental predisposition to perceive one thing and not another; it influences what we hear, taste, feel, and see.

Question 4

What did researchers demonstrate about emotions?

Answer 4

They showed that emotions can affect our perceptions, such as walking distances feeling longer when fatigued by prior exercise.

Question 5

What is parapsychology?

Answer 5

The study of paranormal phenomena, like ESP, telepathy, and psychokinesis.

Question 6

What are testable forms of ESP?

Answer 6

Telepathy (mind-to-mind communication), clairvoyance (perceiving remote events), and precognition (perceiving future events).