Behavioral Science 2.1

Question 1

Sensation

Answer 1

(Transduction) converts physical electromagnetic and auditory signals into internal electrical signals in the nervous system

Question 2

Perception

Answer 2

Processing and manipulation of previously external signals that have been internalized by sensation

Question 3

Sensory receptors

Answer 3

Neurons that respond to stimuli and create electrical signals

Question 4

Distal stimuli

Answer 4

Stimuli originating outside of the body

Question 5

Proximal stimuli

Answer 5

Stimuli that directly interact and affect sensory receptors

Question 6

Ganglia

Answer 6

Collection of many neuron cell bodies

Question 7

Projection areas

Answer 7

Parts of the brain which receive electro chemical signals and further analyze and three input

Question 8

Photo receptor

Answer 8

Response to electromagnetic waves in the visible spectrum

Question 9

Hair cells

Answer 9

Respond to movement of fluid near the inner ear

Question 10

Nociceptors

Answer 10

Skin receptors responding to pain

Question 11

Thermo receptors

Answer 11

Responding to changes in temperature

Question 12

Osmo receptors

Answer 12

Responding to the osmolarity of blood

Question 13

Olfactory receptors

Answer 13

Smells

Question 14

Taste receptors

Answer 14

Responding to taste

Question 15

Absolute threshold

Answer 15

The minimum amount of stimulus needed to activate a sensory system

Question 16

Subliminal perception

Answer 16

Stimulus that is transduced but not perceived

Question 17

Discrimination testing

Answer 17

Presenting a subject with an original and slightly changed stimulus increasing the difference until it is noticed

Question 18

Difference threshold

Answer 18

Minimum difference in stimuli needed to perceive the change

Question 19

Webers law

Answer 19

For a difference in stimuli to be noticed the change must be at least 0.68%

Question 20

Signal detection theory

Answer 20

Detection of stimuli can be affected by other external or internal stimuli

Question 21

Signal detection experiment

Answer 21

Hits Signify when the subject correctly identifies if there was or was not a signal. Signals are presented or withheld and the subject provides a response. Identify response bias

Question 22

Response bias

Answer 22

Refers to the tendency to respond to a stimulus in a particular way due to non-sensory factors

Question 23

Non-sensory factors

Answer 23

Extra stimuli which are not meant to be transduced as a signal

Question 24

Sensory adaptation

Answer 24

A change in physiological and psychological components stimulus response due to conditions or tendencies