OT MIDTERM PERCEPTION AND SENSATION

Question 1

Sensation

Answer 1

bringing information from the outside world into the body and to the brain

Question 2

Vision

Answer 2

photons reflect off objects and are absorbed by eyes

Question 3

Hearing

Answer 3

objects cause vibrations in air

Question 4

Touch

Answer 4

stimulates receptors in the skin

Question 5

Taste

Answer 5

molecules in substances interact with taste receptors in tongue

Question 6

Smell-

Answer 6

substances give off molecules which float in air and interact w receptors in the nose

Question 7

Temperature

Answer 7

infra-red (heat) picked up by receptors in our skin

Question 8

proprioception

Answer 8

The unconscious awareness of sensations coming from ones joint, muscles, tendons, and ligaments- position sense

Question 9

kinesthesia

Answer 9

The conscious awareness of joint position + body movement in space, such as knowing where to place one’s feet when climbing stairs w/o visual cues

Question 10

Perception:

Answer 10

MAKING IT MEANINGFUL Interpretation of a sense, allows us to make sense of sources of energy

Question 11

Auditory Figure-Ground

Answer 11

the ability to discriminate b/w sounds in the foreground and background so that one can focus on one sound without being distracted by others

Question 12

Body awareness:

Answer 12

The mental picture of one’s own body parts, where they are, how they interrelate, and how they move

Question 13

Directionality:

Answer 13

The awareness of right/left, forward/back, up/down, and the ability to move oneself

Question 14

Figure-Ground perception:

Answer 14

The ability to perceive a figure in the foreground from a rival background

Question 15

Form constancy

Answer 15

Recognition of a shape regardless of its size, shape, or texture

Question 16

Stereognosis

Answer 16

ability to identify objects by touch only

Question 17

How is perception assessed?

Answer 17

O 1) Formal and standardized assessments:
O Example: The Motor Free Visual Perceptual Test, Revised (MVPT-R)
O 2) Observation during functional tasks and activities
O 3) Reports from family and other professionals.

Question 18

Complete colour blindness is called

Answer 18

achromatipsia

Question 19

Prosopagnosia

Answer 19

inability to recognise familiar faces

Question 20

Body Scheme

Answer 20

awareness of body parts in relation to each other

Question 21

Asomatognosia:

Answer 21

severe loss of body scheme. Usually evaluated by having client point to different body parts on command or by imitation.

Question 22

Right/left discrimination

Answer 22

identification of L and R sides of body

Question 23

O Finger agnosia

Answer 23

difficulty naming fingers or identifying which finger was touched.

Question 24

O Praxis

Answer 24

plan and perform movement.

Question 25

O Ideational apraxia:

Answer 25

O the person has errors in the content of the task. Deficits are more associated with the task rather than the movement. O Example: may attempt to use a screwdriver as a knife.

Question 26

O Ideomotor apraxia:

Answer 26

cannot perform a motor act on command. May be able to describe it, or do it spontaneously, but cannot perform on command.

Question 27

Constructional Apraxia

Answer 27

cannot copy or construct a design (on command or spontaneously).

Question 28

Dressing Apraxia

Answer 28

trouble dressing self

Question 29

O Homonymous Hemianopsia

Answer 29

hemi-field loss optic tract (OR lesion in occipital lobe) . Generally aware Missing one side of both eyes vision

Question 30

O see in 3-D or in

Answer 30

stereovision

Question 31

O Optic chiasm

Answer 31

where nerves cross over

Question 32

Bipolar Hemianopsia

Answer 32

damage at the optic chiasm- missing the outside of vision

Question 33

Signs of HH:

Answer 33

Bumps into things Tilts and/or turns head to observe objects Panic attacks Report that “one eye isn’t working” Trouble with balance Difficulty navigating through busy areas Startled by objects and people that appear and disappear Loses place when reading Fearful of falling and bumping into things- become passive or dependent

Question 34

Unilateral Neglect or Hemi-neglect

Answer 34

is an unawareness of the left side of space, or the left side of the body. May have no insight into the disability. Mainly occurs on left side loss occurs on the left side of the visual world as the result of right parietal lobe damage

Question 35

Signs and symptoms of Neglect

Answer 35

Does not scan into the area of hemianopsia Bumps into things on side, and does not compensate Orient self away from neglected side and may ambulate/drift away from neglected side

Question 36

Tx of neglect

Answer 36

Encourage eye and head movement towards neglected side Ambulate towards neglected side Family to learn to sit on the side of neglect Beeper timers to remind them to scan towards neglected field

Question 37

Tactile reinforcement

Answer 37

Velcro or sandpaper to feel edges of pages For neglect