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Psychology (7,812)
PSYB65H3 (519)
Ted Petit (310)

PSYB65, Lecture 1 Notes (compiled in a powerpoint)

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Ted Petit

COURSE INFORMA TION: PSYB65 - INSTRUCTOR = TED PETIT - 2hr lec, 10 min breaks - qns ans'ed by one of PSYB65 - what is this two TAs course - course website: - if unsatisfied w/ ans, - designed for psy can go see PROF. students yb65/CourseNotes/ - for ppl who want to ml TAs know about human brain - Rodrigo (black-skinned) & how it controls behav - course outline on intranet - David (asian guy) - how to deal w/ patients - e-mail: (will post OH's on that have brain dmg, [email protected] intranet) diseases - intro lvl PROFESSOR - will be reminded briefly - can ask qns during, after of pre-req concepts in class beg. of lec. - do not e-mail via prof's e-mail - this course doesn't get for course content related info deep into receptor lvl (ex) synapses at subcellular lvl 1 COURSE INFORMA TION:PSYB65 HUMAN BRAIN PROF TXT - comprises of neurons firing - doesn't read lec notes - most intro lvl electrochem. impulses - 2 exams in this course - wrt course, we cover>- create thoughts, feelings, - expeted to know diff. chap's at diff temotions & consc. course content (=> do not cover in - eth from lec's, eth order) FOCUS OF THIS COURSE from txtbooks - not on synap. structure & fcn - will give enough info NOTE ABOUT - will talk about ppl who have that when go to book, it LECTURE SECTIONS will make sense - can swap b/ween strokes, tumours, MS, psychiatric - but additional LEC60, LEC01 (go to disorder (schizophren, depressin), details in book that're classroom) anytime - what happens when ppl take impt, so need to learn drugs ( them - what do certain drug do to brain; - what do things that alter human - txtbook portion, and lec consc do to brain) portion in exam FOCUS: humans, not animals - no discussion of expts on animals, but rather humans, human brain 2 COURSE INFORMA TION: PSYB65 FORMAT - will typically be talking about how brain is orgzed about a speicifc fcn >- how do we control our muscles, how do we see/hear, and once this is explained in normal situation, then moves towards what happens in abnormal situation (pathology) - ex. cp. normal case to that of an accident/stroke; what is going wrong w/ patient? DISCUSSION - then what happens when thererain sys), >- is dmg to it, >- or disease comes on, >- or self-inflicted alterations (drug use) 3 HUMAN NERVOUS SYSTEM CNS (con.) - 2 major comp's - v. little diff. b/ween brain and spinal cord 1. CENTRAL NERVOUS - foramen magnum (big hole at SYSTEM (CNS) back of skull) where structure of = brain & spinal cord spinal cord goes up to form - arise brain - like an arbitrary decision 2. PERIPHERAL NERVOUS whenever it enters foramen SYSTEM (PNS) magnum (big hole at back of - comprised of eth else skull) as to when it begins, - nerves that leave spinal when looking at it anatomically cord and brain and go out and - anatomically speaking, spinal make things (ex.hands) work cord like a tube that goes thro - ex. let brain know u burned ur finger hole that gets bigger and ultimately becomes the brain - nerves before entering brain - really, spinal cord & brain are and spinal cord are referred to like one entity as PNS - brain is like anterior, special compt of spinal cord (this is the last that will be said about spinal cord, b/c this course is about human brain) 4 (AFTER BREAK) GENERAL INTRODUCTION AND OVERVIEW OF BRAIN --------------------- Going to be looking at: - how is brain generally orgz'ed - how has it got to be that way - going to look at two forms of dvpmt of human brain 1. EVOLUTIONARY DEVELOPMENT (PHYLOGENETIC) - how did it get that way over time during evol'n, looking at brain has evolved over by of yrs to get to human brain, - how did brain get to where it is now wrt evol'n 2. EMBRYONIC DEVELOPMENT (ONTOGENETIC) - how did brain dvp as an individual from conception to adulthood - the moment we are conceived, brain slowly is forming overtime => how did it get that way over time during evol'n - ie. going to look at how brain evolved over yrs to end up getting to contemporary human brain 5 - brain - spinal cord 6 BRAIN - BASIC ORGANIZATION - many ways to organize the brain by dividing it into subcomponents to make sense out of it 7 BROADEST, BASIC WAY OF DIVIDING UP BRAIN AREAS (illustration) - hand-drawn img of simplified mamm. brain => works for any mammal - broken down into 3 major comp's - forebrain - midbrain - hindbrain - back of brain (most primitive) - comes in from spinal cord - brain has evolved from back region (right side) to front for every human 2 MAJOR HINDBRAIN COMPONENTS 1. MEDULLA - responsible for most basic life processes - ex. heart beating, resp. - things keeping u alive on moment-to- moment basis - if you get any sort of brain dmg here (tumour, stroke), you die => last place to have brain dmg - this is most primitive thing that keeps u alive 2. BRAIN STEM - core of brain
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