Chapter 3: Sensation/Perception

Question 1

(Sensation/Perception) is the stimulation of sensory receptors + the transmission of sensory info to the CNS.

Answer 1

Sensation.

Question 2

(Sensation/Perception) is an active process where sensations are organized + interpreted to form an inner representation of the world.

Answer 2

Perception.

Question 3

TRUE OR FALSE: Perception is considered a very mechanical process.

Answer 3

FALSE.

Question 4

TRUE OR FALSE: Sensation is mostly automatic.

Answer 4

TRUE.

Question 5

Sensation comes from sources of ________ and ___________ sources.

Answer 5

Energy, chemical.

Question 6

TRUE OR FALSE: There are only 5 senses.

Answer 6

FALSE

Question 7

Touch is just one of the “_____ _______,” which include w______, c___, p______, and p___.

Answer 7

Skin senses, warmth, cold, pressure, pain.

Question 8

TRUE OR FALSE: Similar sensations can lead to disparate perceptions.

Answer 8

TRUE

Question 9

___________ ________ is the minimal amount of energy to produce a ___________.

Answer 9

Absolute threshold, sensation.

Question 10

Which of these is the highness or lowness of sounds?
a. Volume
b. Pitch

Answer 10

b.

Question 11

P____phys____ look for absolute threshold by finding the minimum stimuli that can be detected 50% of the time.

Answer 11

Psychophysicists.

Question 12

What is sensory stimuli that goes under the absolute threshold? Can it influence us?

Answer 12

Subliminal stimulation, or subliminal perception. Yes.

Question 13

The minimal difference in magnitude of 2 stimuli is called their _________ ______.

Answer 13

Difference threshold.

Question 14

Signal-detection theory says that the ___________ of sensory stimuli involves ph_______, ps____________, b_________ factors.

Answer 14

Physical, psychological, biological.

Question 15

Weber’s constant for light is the f______ of the intensity needed for change to be noticeable. What is it for light?

Answer 15

fraction, 1/60th.

Question 16

The minimum difference (“At least 50% of the time, most people can tell if light becomes 1/60th brighter or darker) in stimuli that one can detect is called the

Answer 16

Just Noticeable Difference

Question 17

The Weber’s Constant for noticing weight difference is:

Answer 17

1/53 (around 2%)

Question 18

The Weber’s Constant for pitch is:

Answer 18

1/333 (1/3 of 1%)

Question 19

The constant for taste is much _____ s_________.

Answer 19

Less sensitive.

Question 20

TRUE OR FALSE: On average, people cannot detect differences of saltiness up to 20%.

Answer 20

TRUE

Question 21

The connection of sensation to motor reaction is in part thanks to psychological states: f_________, m__________, l__________.

Answer 21

Fatigue, motivation, learning.