lecture 14 Flashcards
(16 cards)
What is epilepsy?
conditioned characterized by abnormal, recurrent discharges from neurons
What are some causes of epilepsy?
heredity component, ischemic/traumatic event at birth such as anoxia (temporal lobe herniated/pinched by skull during birth), infections, trauma, stroke, tumors
Other symptoms of epilepsy?
Degeneration of neurons at the site where the epileptic seizure starts
What are tonic clonic seizures?
immediate contraction of the muscles and convulsions
Absence seizures?
lack of cortical activity, immobility, muteness, blank stare, etc. Lasts 5-10 seconds
Motor seizures?
start in one location (ex thumb), and then spreads throughout the body
Sensory seizures?
occurs in any sensory system (tone of certain frequency)
Psychic seizures?
aphasic (failure to comprehend speech), dymnesic (deja vu), cognitive (intrusion of a single thought), affective (sudden fear, anxiety, etc)
What is involved in epileptic surgery?
removes epileptic focus
Why do seizures get worse with time?
synaptic efficacies between the neurons in the epileptic focus and the surrounding neurons get strengthened
Wernicke’s aphasia?
inability to understand language
Broca’s aphasia?
inability to speak properly and understand syntax
conduction aphasia?
has senseless speech but can understand speech and writing fine
Stuttering?
dysrhythmia of speech leading to a disturbance of articulation of words, problem between 2 hemispheres, no single cause
Dyslexia?
impaired ability to read
dysphasia?
impaired ability to comprehend/produce speech