Chapter 6

Question 1

Sensation

Answer 1

Awareness resulting from the stimulation of a sense organ

Question 2

Perception

Answer 2

Organization and interpretation of sensations

Question 3

Transduction

Answer 3

Conversion of stimuli detected by receptor cells to electrical impulses that are then transported to the brain

Question 4

Sensitivity

Answer 4

True Ability of the individual to detect the presence or absence of signals

Question 5

Electromagnetic energy

Answer 5

Pulses of energy waves that can carry information from place to place

Question 6

Cornea

Answer 6

Clear covering that protects the eye and begins to focus the incoming light

Question 7

Pupil

Answer 7

A small opening in the centre of the eye

Question 8

Iris

Answer 8

The coloured part of the eye that controls the size of the pupil by constricting or dilating in response to light intensity

Question 9

Lens

Answer 9

Focuses the incoming light

Question 10

Retina

Answer 10

Contains photoreceptor cells. Rays from the bottom hit the top of retina. From the right hit the left part of the retina, which causes image on the retina to be upside down

Question 11

Visual Accomodation

Answer 11

Process of changing the curvature of the Lens to keep the light entering the eye focussed on the retina

Question 12

Nearsighted

Answer 12

Objects near look fine, objects far are blurry

Question 13

Farsighted

Answer 13

Can see distant objects clearly, objects are close look blurry

Question 14

Rods and Cones

Answer 14

Receptor cells in retina

Question 15

Bipolar and Ganglion cells

Answer 15

These cells gather together and converge, like the strands of a rope, forming the optic nerve

Question 16

Optic Nerve

Answer 16

Collection of ganglion cells that sends vast amounts of visual information via the thalamus to the brain

Question 17

Fovea

Answer 17

Central point of retina

Question 18

Cones

Answer 18

Visual neurons that are specialized in detecting fine detail and colours

Question 19

Rods

Answer 19

Visual Neurons that specialize in detecting edges of figures by comparing shaded of black white and gray

Question 20

Blind spot

Answer 20

Area in the retina where the optic nerve exits the eye and no photoreceptors are present

Question 21

Long cones

Answer 21

Long wavelengths(Red)

Question 22

Medium Cones

Answer 22

Medium Wavelenghts(green)

Question 23

Short Cones

Answer 23

Short Wavelengths(blue)

Question 24

Proximity

Answer 24

Grouping figures together

Question 25

Continuity

Answer 25

Perceive stimuli in smooth, continuous ways rather than in more discontinuous ways

Question 26

Closure

Answer 26

We tend to fill in gaps in an incomplete image to create a complete, whole object

Question 27

Depth Perception

Answer 27

Ability to perceive 3d same and accurately judge distance

Question 28

Pinna

Answer 28

External and visible part of the ear

Question 29

Ear drum

Answer 29

Are at the end of the canal. Sound waves strike it which vibrates the waves

Question 30

Cochlea

Answer 30

Vibrations cause the oval window on the outside of the cochlea to disturb the fluid inside

Question 31

Oval window

Answer 31

Membrane covering the cochlea

Question 32

Cilia

Answer 32

Movements of the fluid in the cochlea triggers impulses of the neurons atatched to cilia. The impulses are sent to the auditory nerve ands then to auditory cortex in the brain

Question 33

Conductive hearing loss

Answer 33

Caused by physical damage to ear

Question 34

Sensorineural hearing loss

Answer 34

Caused by damage to the cilia or the auditory nerve

Question 35

Cochlear implant

Answer 35

A device made up of a series of electrodes that are placed inside the cochlea

Question 36

Proprioception

Answer 36

Ability to sense the position and movement of our body parts

Question 37

Sensory Interaction

Answer 37

The working together of different senses to create experience

Question 38

Sensory Adaptation

Answer 38

Decreased sensitivity to a stimulus after prolonged and constant exposure