Class Notes (839,055)
Canada (511,173)
Psychology (7,812)
PSYB65H3 (519)
Forget (11)

Lecture 1.doc

2 Pages

Course Code

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.
Lecture 1 - nervous system broken up into CNS and PNS - CNS => brain and spinal cord - PNS => all the other nerves going out from the brain and the spinal cord - this course focuses on the brain in the CNS only - in certain aspects the human brain is identical to other mammals, eg rats, mice – in terms of overall organization Overall Organization of the Brain - broken down into forebrain, midbrain and hindbrain 1. hindbrain/brainstem => continuation of the spinal cord, base of the brain; fairly simple => major components are cerebellum and medulla Cerebellum: involved in sensorimotor integration – integrates sensory input w motor output; allows for balance, ability to maneuver, prevents falling, damaged cerebellum ppl stagger (look drunk) => ability to stand erect on 2 limbs Medulla: basic life processes – heart rate, respiration; critical for life 2. midbrain => contains reticular formation – number of different nuclei => involved in sleep/wake cycles, waking up and going to sleep => damage leads to continuous sleep => coma 3. forebrain => most anterior portion, contains most of the brain mass in humans => human evolution favoured the forebrain Thalamus: large central portion; major relay centre in humans and higher mammals => info from every sensory system in the body stops in the thalamus and relayed to the appropriate area in the cortex Hypothalamus: beneath the thalamus; controls less primitive life functions – keep the species alive, eg thirst, hunger, territoriality, sexual behaviour; feel good part of the brain (4 F's: Finding, Feeding, Fighting, Fucking - sexual reproduction) Limbic system: amygdala and hippocampus, part of hypothalamus; emotions and emotionality, eg love, passion, hatred, etc Neocortex/cerebral cortex: most anterior structure, curves back and covers the entire brain; involved in higher brain functions/intellectual functions, approx 80-85% of the brain, eg. speech, reasoning, intelligence, info processing => specific only to humans – only species that have higher intellectual functions Evolution of the Brain - pertaining to human brain evolution – all species evolved to the best of their abilities - animals that were preyed upon developed n
More Less
Unlock Document

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


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.