Class Notes (808,492)
Canada (493,251)
Psychology (3,899)
PSY1101 (853)

Lectures on the Nervous System These are Brown's 2011 lecture notes for the section on the nervous system, covered by Ch.2 of the Psychology textbook (9th edition). Comments not on slides were written in itallics.

8 Pages
Unlock Document

University of Ottawa
Robert Brown

LECTURE 6 Tuesday January 25 2010the brainpeople have long been associated as the brain is an organ for behaviourthis stems from nature and nurture ideathe idea that there were ingrained personality traitsphrenologyspecific functions localized in the brainlike humour was in one placeconsciousness was in another placeas you grew as a child the bone of the skull became harden and it would exhibit lumps for certain areas of the brainie If you have a certain lump in the joy area then you would be a more joyful personBSie You could tell if a person was a criminal by finding a selfish lumpPhrenologydescribing personality type through the formation of the skyll all craphowever what they got rightfunctions of the brain are localizedNeuronsa specialized cell type within the brainthe middle is the cell body and they branch out into dendritesthey are specialized for processing information which connect together green fluorescent protein often used to visualize neuronsIn schematic a neuron has specialized features it is organized from the listening end down to the talking endinformation flow starts from dendrites comes through the cell body then the axon goes out into theterminal end which will connect to dendrites of other neuronsThe cell bodies themselves are quite small12 microns The axon portion can be VERY long down from the brain to your foot for exampleThe Nerve Cell Neuron a nerve cell the basic building block of the nervous system shape of neurons are different depending on functionbipolar usually has neurons with few branchesDifferent TypesSensory neuron bring sensory information to the central nervous system interneurons neurons that connect exclusively within the central nervous systemmotor neurons send signals from the brain and spinal cord to muscles and glands large cell bodies because they need to support axons to go long distances Dendrites branching processes of a neuron that receive and integrate input from other neurons before passing it onto the cell body Cell body portion of the neuron concerned with regular cell processes nucleus generation of proteins the housekeeping part of the cell Myelin sheath a layer of fatty tissue increases transmission speed of neural signals a layer of fatty tissue that encases the axons of many neurons it greatly increases transmission speedsdown the axon
More Less

Related notes for PSY1101

Log In


Don't have an account?

Join OneClass

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

Sign up

Join to view


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.