sensory disorders

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synthesia
- blending of the senses
- seeing sounds or hearing colors
visual field neglect
- caused by damage to one side of the primary visual cortex
- the brain can't process and replicate the part of an image
agnosia

loss of knowledge
visual agnosia

difficulty recognizing objects
prosopagnosia

difficulty recognizing faces
broca's aphasia
- damage to broca's area
- can comprehend speech but speech production is impaired
wenicke's aphasia
- aka word deafness
- impairs speech comprehension while speech production is vague or meaningless
conduction aphasia

inability to repeat spoken words
anosmia

loss of smell
total anosmia

very rare but results in an absolute loss of smell
ageusia

lost sense of taste
total ageusia
- complete loss of taste
- very rare
hypogeusia

decreased perception of taste
dysgeusia

distorted sense of taste
congenital absence of pain
- normal skin sensations but cannot perceive pain
- very rare genetic defect
- dangerous in that you can't sense danger
parkinson's disease
- progressive loss of substantia nigra
- resting tremors, hard time executing and starting intentional movement (akinesia).
huntington's disease
- progressive loss of dopamine neurons in the caudate/putamen
- jerky random movement
myasthenia gravis
- autoimmune disorder
- immune systems sees ACh receptors as foreign and eliminates them
- rapidly fatigued face muscles
multiple sclerosis
- autoimmune disorder
- immune system attacks oligodendricytes and schwann cells to eliminate myelin production
- nerve signals happen slower
- visual disruption and muscle weakness
myopia

nearsightedness
hyperopia

farsightedness
monochromacy
- total colorblindness
- lack of all cones
protanopia

lack of red cones
deuternopia

lack of green cones

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starvinmarvin623

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sensory disorders

Description

sensory disorders for physiological psychology exam 2

Updated

2011-03-10T01:45:54Z

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