Final - Exam (10/13) - [Exam 3 - Section 2] Flashcards
- commissurotomy-
- Split brain patients
Epilepsy can cause changes in function of _________ and cerebral development
hemispheres
- commissurotomy-
- Split brain patients
Function of hemispheres in patients do not reflect function of _________ brain – can be reorganization of function
-Inconsistent findings from patients with _________
- healthy
- lesions
Functional asymmetry - Brain Stimulation
Can be used to determine _________ in conscious patients undergoing surgery
function
Brain Stimulation can _________ function or _________ function
- block
- stimulate
Stimulation of left hemisphere blocks on-going _________, no effect on speech from stimulation of _________
- speech
- right
Stimulation of right hemisphere blocks interpretation of _________ expressions, short-term _________ for faces etc.
- facial
- memory
Stimulation of right temporal lobe stimulates recall of _________
memories
Stimulation of left frontal or temporal regions speed up _________
speech
Functional asymmetry
- Carotid _________
Can anesthetize one hemisphere if injected into carotid artery in ipsilateral hemisphere
sodium amobarbital
Functional asymmetry
- Carotid sodium amobarbital
Can anesthetize one hemisphere if injected into _________ in ipsilateral hemisphere
carotid artery
_________ carotid artery injection – no movement on right side of body (hemiparesis), no speech, loss of vision in right visual field
Left
Left carotid artery injection – no movement on right side of body (hemiparesis), no _________, loss of vision in _________ visual field
- speech
- right
_________ carotid artery injection – no speech loss,
hemiparesis of left side of body, loss of vision in left
visual field
Right
Right carotid artery injection – no speech loss, _________ of left side of body, loss of vision in _________
visual field
- hemiparesis
- left
Right carotid artery injection – produces _________ and _________ symptoms on the left
- sensory
- motor
__% right-handed people and __% of left-handed
people – left hemisphere predominantly controls
speech
- 98
- 70
888888888
_________ % of population left-handed
10 – 30
In majority of population, more _________ fibers descend to right hand than left hand
-neural
Corpus callosum is larger in _________-handed and ambidextrous people
left
888888888
Injury early in life may cause a shift in _________
handedness
888888888
Handedness likely due to _________ and environmental influences
polygenic