What are the components of the sensory experience? - Correct Answer Reception: process of receiving
info from nerve endings in skin and body
Perception: interpret the impulses transmitted from receptors and give meaning to stimuli
Arousal mechanism: RAS controlls consciousness and alertness
Responding to Sensations: Info is either discarded, stored in memory, or impulses are generated to bring
about a response.
What factors affect sensory function? - Correct Answer Developmental variations: Age and
developmental level
Culture
Illness and medications
Stress
Personality and lifestyle.
What are some sensory alterations? - Correct Answer Sensory deprivation: Irritability, confusion,
reduced attention span, decreased problem solving ability, drowsiness, depression, preoccupation with
somatic complaints, delusions, hallucinations.
Sensory Overload: Irritability, confusion, reduced attention span, decreased problem solving ability,
drowsiness, muscle tension, anxiety, inability to concentrate, decreased ability to preform tasks,
restlessness, disorientation
How does sensory function change with aging? - Correct Answer vision- eye structures change
hearing- cerumen is drier and more solid creating hearing loss, scarring, loss of high-frequency tones.
taste- taste bud atrophy, dry mouth
Smell- loss of olfactory neurons
touch- loss of sensory nerve fibers- light touch, pain, temp variations
Kinesthesia- decrease in muscle fibers, diminished conduction speed. risk for falls.
Myopia - Correct Answer nearsightedness
, hyperopia - Correct Answer farsightedness
presbiopia - Correct Answer lens becomes less elastic and able to accomidate
Astigmatism - Correct Answer irregular curvature of cornea
Cataracts - Correct Answer clouding of the lens
Glaucoma - Correct Answer increased pressure in anterior cavity of eye
Macular degeneration - Correct Answer Loss of central vision due to damage of the macula lutea
Strabismus - Correct Answer Crossed eyes
Conduction deafness - Correct Answer structures that transmit vibrations are affected
Nerve deafness - Correct Answer damage to cranial nerve VIII
Presbycusis - Correct Answer sensioneural loss associated with aging
Central deafness - Correct Answer damage to auditory areas in brain
Tinnitus - Correct Answer ringing in ears
Impacted cerumen - Correct Answer earwax becomes tightly packed in ear canal
Otosclerosis - Correct Answer hardening of bones in middle ear. stapes becomes fixed
Otitis Media - Correct Answer middle ear infection