DOC PREVIEW
NAU PSY 101 - Biological and Psychology and Neuroscience
Type Lecture Note
Pages 3

This preview shows page 1 out of 3 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 3 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 3 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

PSY 101 1st Edition Lecture 7 Outline of Current Lecture  Biological and Psychology and Neuroscienceo Phineas Gageo Brain Damageo Broca’s “Tan”o Mosso’s Church Bells o Your selfish braino Structure o Complexity o Neurons o Neural Communicationo Communication Definition of synapse Definition of neurotransmitters Current Lecture Biological and Psychology and Neuroscienceo Phineas Gage Gage was a railroad foreman who had a tamping iron shoot through his skill Gage walked away from the accident seemingly intact  Profanity, irresponsibility, lying, and inability to plan for the future.o Brain Damage From Gage, we gained insight into the frontal lobes Inference from studies of those who experience brain damage.- Traumatic injury, stroke, lesion, disease, infection, etc. Your brain is the most complex thing in the known universe.o Broca’s “Tan” Around the same time that gage had his accident Left hemisphere behind frontal, in frontal of temporal  Unable to form words (produce language)  Paralysis on right side of body (next to motor)o Mosso’s Church BellsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. Angelo Mosso, an Italian physiologist had a patient who sustained a head injury Bells rang = brain pulsed - Asked questions with memories, or complex problems- Frontal lobe and blood flow to the brain that is active o Your selfish brain Avg. Weight =3 lbs.- 100 billion neurons, each linked to as many as 10,000 others. Brain tissue burns only pure glucose, with little capacity for reserves. Adults: 2% of body weight, but 20% of oxygen and glucose. At birth: 10% of body weight, 65% of energy o Structure  The brain is encased in a thick skull and 3 membranes- Dura matter- Arachnoid - Pia matter Cerebrospinal fluid (CFS)- Without CFS, the brain would collapse- Also used as a buffer and a cleaner Brain tissue has no pain receptors - Most brain surgeries are conducted with the patient felly alert. o Complexity  The complexity of our brain lies in the folds (gyril).- Largest brain = sperm whale (~ 20 pounds)- Largest encephalization quotient (EQ) = the shrew (10%) - Largest surface area to mass ratio = humanso Neurons  The nervous system is made up of neurons and glial cells.- Neurons are communicative; receive (and send) messenger from external sources and other neurons - Glial cells are multi-purpose Neuron Anatomy - Cell body - Dendrites - Axon/ terminals - Myelino Neural Communication Two types:- Afferent (sensory)- Efferent (motor) Luigi Galvani- Electrical stimulation of frog legs Cell “firing” is electric within the neuron - When a neuron receives enough excitation, it fires an action potential.- Travels from cell body down axon to terminal.o Communication Synapse: tiny gap between neurons  Comm. From neuron to neuron is chemical  Neurotransmitters: Chemicals involved in transmissions between cells - Can be excitatory or


View Full Document

NAU PSY 101 - Biological and Psychology and Neuroscience

Documents in this Course
Load more
Download Biological and Psychology and Neuroscience
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Biological and Psychology and Neuroscience and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Biological and Psychology and Neuroscience 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?