Exam (elaborations)
Sensory Perception With Complete Solutions Latest upload
- Course
- Sensory Perception
- Institution
- Duke University
Sensory Perception With Complete Solutions Latest upload
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lOMoARcPSD|22014731Sensory Percept ion What are the components of the sensory experience? - correct answers 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 answers Developmental variations: Age and developmental level
Culture
Illness and medications
Stress
Personality and lifestyle.
What are some sensory alterations? - correct answers 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 answers 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 answers nearsightedness
hyperopia - correct answers farsightedness
presbiopia - correct answers lens becomes less elastic and able to accomidate
Astigmatism - correct answers irregular curvature of cornea
Cataracts - correct answers clouding of the lens
Glaucoma - correct answers increased pressure in anterior cavity of eye
Macular degeneration - correct answers Loss of central vision due to damage of the macula lutea
Strabismus - correct answers Crossed eyes
Conduction deafness - correct answers structures that transmit vibrations are affected
Nerve deafness - correct answers damage to cranial nerve VIII
Presbycusis - correct answers sensioneural loss associated with aging
Central deafness - correct answers damage to auditory areas in brain
Tinnitus - correct answers ringing in ears
Impacted cerumen - correct answers earwax becomes tightly packed in ear canal lOMoARcPSD|22014731
Otosclerosis - correct answers hardening of bones in middle ear. stapes becomes fixed
Otitis Media - correct answers middle ear infection
What are some diagnoses for sensory perception? - correct answers Disturbed sensory perception (specify type)
Acute confusion
Chronic confusion
Impaired Environmental Interpretation Syndrome
Impaired memory
risk for peripheral neurovascular dysfunction
Unilateral Neglect
Risk for falls
Risk for Injury
Self care Deficit
Deficient Divisional Activity
Imbalanced Nutrition
Social Isolation
CN II - correct answers Optic. (Visual) Transmits light to the brain reflected from solid objects in the environment
CN VII and CN IX - correct answers Taste. Glossopharyngeal. 4 different receptors on the tongue
CN VIII - correct answers Auditory (vestibulocochlear). The sense of sound perception results from tiny hair fibers in the inner ear.
Touch - correct answers Tactile. Pressure perception generally on the skin.
The Senses - correct answers Provide information about Internal environment
External environment
Enable people to experience the world
Allow response to changes
Help body maintain homeostasis
Necessary for human growth and development
Sensory Alterations - correct answers Impairment of one of the senses; examples include partial or complete loss of hearing or vision, color blindness, loss of sensation in some body part or the loss of the sense of balance Causes difficulty in receiving and interpreting stimuli
Persons will have difficulty interacting safely or appropriately with the environment until compensatory mechanisms are developed
Stimulus - correct answers Trigger that stimulates receptor
Meaning depends on reception and processing (e.g., loud noise, bright light, sour fruit)
Reception - correct answers Process of receiving stimuli from nerve endings
We are receiving thousands of pieces of information at any given moment.
Occurs through receptors:
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