Class Notes (836,680)
Canada (509,870)
York University (35,328)
Natural Science (2,813)
NATS 1860 (36)
Lecture

NATS 1860A Note 4

4 Pages
88 Views
Unlock Document

Department
Natural Science
Course
NATS 1860
Professor
Keith Schneider
Semester
Fall

Description
NATS 1860 Note 4 Motor cortex - Hitzig 1870 applied electric currents to stimulate brains and dogs - Distinctive movements when particular sites stimulated - Ablation to confirm loss of movement in these areas - Confirmed ideas of Jackson on epilepsy and hemiplegia - 19 century physics findings in being able to use electricity for experiments: phrenology - Rafferty had absence that ate away on her bone, live testing - Lesions to regions of damage are important to localization (confirms) - Ferrier writes a book, anytime a book is accepted you know it will influence the direction that research goes on. o Goltz said no specific defect when sensory and motor areas removed in fog  Live dog still had functions Electrophysiology of Brain - Catton (18 -19 century) records spontaneous electrical currents from animal brains o A detector that observed the reaction the brain. Cytoarchitectonics - Fine anatomy of cortex. Depends on technology: Cell Theory: - Cells are integral units and are made up of different part in a cell. - The real question is how the dendrites are separated from the dendrites. Fun. Neuron Docrtine: - Separate entities, don’t depend on anything to live. o Staining, silver staining, Neural Reticulum theory: - Large web that is connected through the axons and of the dendrites. This challenges the localization theory Gestalt movement: - Refers to holism: the whole is more than the sum of its parts. o When damaging parts of the brain, not taking into consideration the state of the brain/body. Other debates - Animals relearn after they have brain damage. Vision Keywords: - Clay Tablets - Susruta couching - Plato’s theory of vision - Galen’s theory of vision - Chiasma - Is-Haq - Alhazen - Microscopy - Duplicity theory Egypt - High incidence of eye problems, including infectious trachoma - Prayers, and incantations to drive away spirits th - Ebers papyrus (copied before 16 century BCE) o Different ointments containing copper, sulfur, beef liver (vitamin A) and other anti-infectious substances. Babylon - Hammurabi’s code on clay tablet th - Pillars in front of temples in 18 century BCE India - Susruta Samhita (16 -11 century BCE) - Couching performs on cataracts - Method was brought to Greece Greeks - Investigated the parts of the eye and the parts of the eye and the optic nerve (thought to be hollow) - Believed that sight had to do with beams of light o From eye to object - Plato’s Timaeus o Non-burning fire from the eyes unites with rays from sun or other light source o Creates “body of vision” which is in contact with the soul, enabling sight o Closing the eyes prevents fire from leaving the eyes (causing the dream) - Alcmaeon identified hollow tubes - Hippocrates explored the anatomy of the eyes: 3 tunics o Sclera o Uveal tunic o Retina - Galen: Localized functions in the ventri
More Less

Related notes for NATS 1860

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