Sensations

Question 1

Absolute Threshold

Answer 1

The smallest level of stimuli that can be detected

Question 2

Difference Threshold

Answer 2

Smallest noticeable difference between 2 stimuli

Question 3

Weber’s Law

Answer 3

Difference threshold varies depending on intensity of original stimulus

Question 4

Transduction

Answer 4

Act of sensing

Question 5

Sensory Adaption

Answer 5

Growing a tolerance for a stimulus

Question 6

Signal Detection Theory

Answer 6

Predicts when you will detect a stimulus
- No abs. Threshold
- Factors (alertness, motivation, etc. )

Question 7

Inattentional Blindness

Answer 7

Not noticeable obvious object because attention was engaged.

Question 8

Change Blindness

Answer 8

Failing to notice changes in enviroment

Question 9

Subliminal messages

Answer 9

Detection of stimulus unconsciously.

Question 10

Mere exposure effect

Answer 10

Repeated exposure to stimuli leads to liking for stimulus

Question 11

Sensation

Answer 11

The process of detecting a physical stimulus.

Question 12

Psychophysics

Answer 12

How sensation effects psychology

Question 13

Pupil

Answer 13

Opening in the iris that lets light in.

Question 14

Cornea

Answer 14

Clear membrane that covers the front of the eye

Question 15

Retina

Answer 15

Thin light sensitive membrane located in the back of the eye

Question 16

Iris

Answer 16

Colored part of the eye

Question 17

Lens

Answer 17

Transport structure behind the pupil; bend light entering the eye

Question 18

Accommadation

Answer 18

Process by which the lens changes shape to focus light onto retina.

Question 19

Feature Decectors

Answer 19

Nerve cells in brain that responds to specific features. (movements, texture)

Question 20

Ganglion cells

Answer 20

Neurons that connect Bipolar cells

Question 21

Bipolar Cells

Answer 21

Neurons that connect rods and cones to ganglion cells

Question 22

Optic nerve

Answer 22

Point where optic nerve crossover.

Question 23

Trichromatic Theory

Answer 23

There are 3 cones. (red, green, blue) explains colorblindness.

Question 24

Opponent Process theory

Answer 24

Afterimage
Pairs (red-green) and (blue-yellow)

Question 25

Auditory perception

Answer 25

Sound waves interact with ear

Question 26

Sound waves

Answer 26

Changes over time in the pressure of an elastic medium (bounces off objects) - NO air no sound

Question 27

Outer ear

Answer 27

Funnels sound into ear - pinna, ear canal, ear drum

Question 29

Middle ear

Answer 29

Amplify sounds - Hammer, anvil, stirrup

Question 30

Inner Ear

Answer 30

Transduce sound into neural response - cochlea, basilar membrane, optic nerve

Question 31

Threshold of pain

Answer 31

Threshold of sound that once crossed will start causing ear damage.

Question 32

Frequency Theory

Answer 32

Basilar membrane vibrates at the same frequency as the sound waves - up to 1000 hz

Question 33

Place Theory

Answer 33

Different frequencies cause larger vibrates at different locations along the basilar membrane

Question 34

Localization

Answer 34

- 2 ear - sound that reaches 1 ear before the other - leading us to find location

Question 35

Conduction Deafness

Answer 35

Can be help with hearing aid

Question 36

Nerve Deafness (Sensorineural)

Answer 36

Nerve damage, can not be helped with hearing aid.

Question 37

Olfactory nerves

Answer 37

Connected to the olfactory bulb in brain

Question 38

Olfactory Bulb

Answer 38

Enlarged ending of the olfactory cortex at the front of the brain where the sensation of smell is registered.

Question 39

Cilia and Mucus

Answer 39

Collect info to send to nerves

Question 40

Anasmia

Answer 40

lack of smell

Question 41

Pheromones

Answer 41

Chemicals signals released by an animal that communicates info + effects other animals of the same species.

Question 42

Taste

Answer 42

Sweet, salty, sour, bitter, umami (Savory)

Question 43

Kenesthetic

Answer 43

Sense of location of body parts in relative to each other.

Question 44

Proprioceptors

Answer 44

Receptor in muscle joints that help Kinesthetics

Question 45

Vestibular

Answer 45

Balance

Question 46

Semicircular canals/ vestibular sacs

Answer 46

Fluid filled parts in the ear that help with balance.

Question 47

Nociceptors

Answer 47

Free nerve endings that respond to pain

Question 48

A delta fibers

Answer 48

Quick pain (sharp)

Question 49

C delta fibers

Answer 49

Slow pain (throbbing)

Question 50

Gate control theory

Answer 50

Pain is a product of both physiological and psychological factors

Question 51

Phantom limb pain

Answer 51

Feeling sensation in a limb that is no longer there.

Question 52

Touch

Answer 52

Pressure (Pacinian receptors) Itch (histamine) Temperature