Final Exam: Week 9 Sensory Function Flashcards
How do our bodies receive information?
Generalized and specialized sensory receptors
Perception
- A higher sensory function
- Enables the person to receive and perceive that a stimulus has occurred, process the info, and attach meaning
Process of perceiving a stimuli
Sensation (stimuli) → Perception → Comprehension
What do vision impairments lead to?
- Limited activity and participation limitations
- Depression
- Psychological disorders
Age related changes to the eye
- Loss of subcutaneous fat and decreased tissue elasticity
- Cornea thickens/flattens and becomes less smooth
- Pupil undergoes degenerative changes
Age related changes to visual pathway
Degeneration along the optic pathway responsible for processing visual information
What do changes in vision result in?
- Narrower field of vision
- Problems with seeing clearly in dim light
- Problems with light and dark adaptations
- Increased sensitivity to glare
Conductive hearing loss
Results from changes in structure, may be corrected
Sensorineural hearing loss
Results from loss or damage to sensory hair cells in cochlea, not correctable but hearing aids can help
2 most common causes of hearing loss in older adults
Presbycusis and noise induced hearing loss from Lon-term exposure to noise
Age related hearing loss
Presbycusis
Four types of presbycusis
Sensory, neural, atrial, and cochlear conductive
Prolonged exposure to noise over ___db will cause damage over time
85
Age related changes in hearing
- Loss of cochlear hairs
- Changes to auditory pathway
- Tinnitus
- Decreased sound sensitivity
Speech and aging
- Degradation of speech comprehension due to hearing changes
- Reduced speech recognition/discrimination