Class Notes (836,414)
Canada (509,777)
Psychology (2,794)
PS263 (60)
Lecture

Cerebrum I and II.docx

3 Pages
92 Views
Unlock Document

Department
Psychology
Course
PS263
Professor
Bruce Mc Kay
Semester
Winter

Description
Cerebrum I and II Telencephalon – Cerebral Cortex  Gyri vs sulci o The ridges themselves are called the gyri (the bumps) and the sulci at the little invaginations (the trough)  Gyrenceohalic vs. Lissencephalic o Has folds in it = Gyrenceohalic  Six layered cortex o Has no folds = lissencephalic, a smooth brain with only one layer of cortex  Convolutions serve to increase surface area o Why not add an extra layer?  The adaptation is to keep the same body size, birthing size, skull size, and just fold the brain so that there can be more  Major fissures of the cerebral hemispheres and Lobes of the cerebral hemispheres o Have all of these lobes and all of these fissures dividing them o There are no functions of fissures, they just exist Studying Cerebral Function  History of observing these things are very barbaric because they occurred from serious accidents  Used to pack holes in heads with crocodile feces, crocodile feces have antibiotic properties  There was a phenominal invention that revolutionize the study of neural anatomy: The gun o Allowed you to put a small hole in the individuals head, destroying a little stuff and causing a very specific, very small damage. o Surgeons mapped out which part of the brain was affected and tested what damage had occurred. The visual field was actively affected as a result of the bullet entry and exit o Made a map of the visual cortex that provide to be right by imaging  Early anatomist noticed that depending on where you were in the brain, the cells had different shapes  Brodmann’s cytoarchitecture map as revealed by Golgi staining o Each area has different cell shapes that clustered together o Mapped based on golgi staining  Artificially activating neurons with a stimulating electrode evokes the behaviour normally sub served by those neurons  Stereotaxic Surgery o When the human skull forms, there are a lot of different bones associated with the skull that fuse as you get older. Where the skull fuses are joining points o Can use electrodes to test the different areas of the brain  Electrical Stimulation o Deep Brain stimulation  You take these stereotaxic brains and you puts electrodes into t
More Less

Related notes for PS263

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit