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Lecture

NESC 3227 Lecture Notes - Temporal Lobe, Positron Emission Tomography, Corpus Callosotomy


Department
Neuroscience
Course Code
NESC 3227
Professor
Kim Good

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January 8th, 2013
January-08-13
10:16 AM
Think about this
What side is her seizure focus on, does it stay only on that side?
Take into account how old she is, how long she's had them, gender, left-handedness
Gross anatomy
Know the lobes of the brain
Note how it's only the frontal region of the brain that seems to have undergone some form of
neurodegeneration
We'll look at what happens to function under conditions of both specific and gross lesions of
certain regions
Orientation terms of the brain
Make sure to know all of these too
o Sagittal
Divides left and right
o Coronal
Divides front and back
o Axial
Divides top and bottom
Imaging
CT scan shows a region (dark) of the brain has possibly been affected by a stroke
PET scan does not give you much of an image about structure, however is very useful in showing
areas of functionality of the brain
o Can also use to look at neurotransmitter binding sites
Normal or Abnormal
MRI with T1 protocol, can tell because the ventricles are so dark, excellent distinction between
regions
The two hippocampi left and right look quite different from one another
This individual has mesial temporal sclerosis
How do clinical neuropsychologists learn about brain function
By studying lesions to certain areas of the brain and seeing what the consequences of these are
Use anatomy and pathology put together to understand the function of different brain regions
and systems
*Just because a behaviour disappears when a brain area has a lesion does not necessarily mean
that area is directly responsible for that behaviour
Examine the behaviours by:
o Comparing it to another group
o Or that individual in their pre-diseased state (if possible, because it isn't always)
Change in behaviour
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