Psych 202 Brain & Behavior Slides

Psych 202 Brain & Behavior Slides -...

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Unformatted text preview: fl...flflflfifl$m.fi.filflflhfi£tfléfllhfl.EHHII'HIJIMPHIF‘E-JHJ The Brain n...flmfifl$flflfi.iflflflflhfléfllhfl . Emmfllehfle' The stuff at the brain What are cur brains made eut ef '?' n Nerve cells {Neurene} - Gliel eelle n...flmfifl$fi.fi.fififlflhfléfllhfl.EHHIE'HU'LMPH'FWHJ' Types uf neurene I Seneery neurene efferent - Meter neurene efferent : Interneurene H UHI'II'EHHT!’ FF I'IIEIT'EIHE-IH fill-DIM!“ Dip-INHM of Plfimll-JJ' Structure cf the neuron - Denclrilee - Cell hcdy - Men H UHI'I'EHEII'IT cl: mantel-am mullet»: [heifer-hm of F‘flfi-I'IJHIJJ' Structure cf the neuron Etll Emi'glr F5" flu] Pr: synaptic Dandm“ [erminll Hnde cl Ham-let \ Mun H LII-ll'I'EHE-l'l'r' In: ins-tawn- wmwu [II-mere of hng Neurenal Communication An e leclrechem 'rcal preceee - Chemicale precluce changes in the cell's electrical pctential - Electrical changes in the cell reeult in the releaee cf chemicals H LII-II'II'EFIH-IT FF HEE'EIHEJH lull-DIM!" Dip-Irwin of Pug-WIng Heuran at Heat Fleeting Pnlential [-TEI rmrj |I1e-=I.-:.I-.' I.'L"-II. I:I1I.-I:II.I.1rarII.' [EL-I: !'-.|-.-..|I|-.-. l'. II.1E:.]I'I IU- I. I |' I: I 1-. -. |' I L I] I'm-l I. l.- 'HC.'.- IL“ I 'H. "I. I+ I. I I “an I 'LI- I I | | | I' | "la. I+ EH I‘- "‘- I‘- I "if - 1'.“ I I: I I a. xi- -.- “a..- h h+ Til“ TLI+ "i-C.'.' Hal-2' 'L'Jn. H. «El. iJUIHIJ-L' UL'II IIIL'L'III1I'.|:l'ul:'.I.' RX I‘L'ul |hr~.i;i-m,--:','h.m_-.u;:u h-Inlrrnm-hblu- membrane H UHI'II'EHEIr-IT El: I'ilfili'fll'fi-IH “DIE-{I'll Dummy-urn of Fax-MINI]! Neurun at East - lehe flaw aeraee the cell membrane at different rates - Difference in flew leade ta a higher eaneenlralien ef negatively eharged iane inside the cell - lmplieatian - the cell is palarized H uuwznerrr a: #5::de Inn-med" Dip-Hem” or Perrwa Resting Potential M iawul'ta M iIIjaemnda unwrnsn'r e: taster-em numeral tapers-rim Meme-egg estsynaptie Potentials {P5P} a.|-: .a. Graded peten'lials - i«.iriillage eh ange al a reeepter site en a pestsynaplie cell membrane - Increase er Decrease the prebability ef an aetien petential in lhe receiving eell - EHCil-Etflrf PEP p Depelarizes - Inhibitery PEP r Hype rp-ela rise 5 H unwensn'r u: nus-=st numeral tun-worm crewman Threshech Minimum slimulus energy needed to trigger an impulse H immense-y e: ails-tawn- wnleenl Dip-Irwin newly-religi- Aetien Petential: Voltage spike .__ 'JI r'-'1i'CI"'i.|'-"i.||l‘:-' Millisecends H uuwsnsn'r o: raster-sin mules-u tapers-rim of Ply-whey Action potential {A P} - Cell membrane becomes temporarily permeable - (“3+ ions rush in] - Brief ch ang e in the electrical charge - The cell is depolarized {inside becomes positively charged} - The Action Potential — the neuron tires 1» All-or-none principle H uurrsnsn'r o: raster-sin mules-u tumor-m of Ply-mMy Propagation of the action potential - Action potential is regenerated down the length of the axon H uur-Isnsn'r o: sister-sin sumac-u III-peren-I-m of Ply-relegy The cell quickly restorers itself - Fte polarization P Sodium-potes sium pump - Refractory Period t "down time" typically only 1 - 2 ms t» Can be created by drugs such as noyocaine — closes the his + channels In sensory neurons that would othem'ise send pain signels to the brain H uuwrnsn'r o: ester-on melee-u Euwmmm Hwy-robe:- F‘ropagation of the action potential The role of myelin - Modes of Ranvier - Saltatery conduction H current-m o: ester-cm mules-u Dip-Irwin answer-nay Neuronal Communication An e lectrochem i-c-al process - The electrical part i Resting potential r Inhibitory and Escitatory Po stsynaptic Potentials [IPSP's lit EPEP's} r Ail-Lon hillocl: r The Action Potential - the neuron tires 1» Triggers the release of neurotransmitter H Ulll'I-‘EHt-l'l'r o: ins-town ell-menu opt-mum ofPlr-rolegg- |l'.‘iommunication Between Neurons - Synapses: The Junctions Between Neurons i» Neurons DO NOT touch each other r Sherrington - synapse - The impulse must travel across the synapse p Leela-i - Chemical messengers — Meurctransmitters - Structure ef the eynepee 1 “mm «III-mull- m 3 Tum huh—h!- flfllnln __ mm marlin-I Willy-rum “an. Wilmi- - Structure ef the synepee - Modifying the preeeee r Agen iete r Antagonists H UHI'II'EHSI'I'!" FF I'ilEIT'EIHE-IH Fill-DIM!“ Dip-INHM of Fifi-min];- Neurotransmitte rs A few of the many nauroshemioals found in the brain - Aoetyloholine {Putin} - Norepinepherine {NE} - Dopamine {DA} - Serotonin {Er-HT] - Endorphins H uurrsnsn'r o: ills-town sumo» tumor-um of Fifi-row The Nervous System - Central Nervous System {CNS} r Brain and Spinal Bord - Peripheral Nervous System p Somatio nervous system -sonses and muscles r Autonomio nervous system -inte mal organs — Sympathetic news-us system activates — Parasyrnpathetio nervous system - cal ms HJHWEFEHTEF renown-mums" Dip-Irwin orplfimh-JJ' ow do we learn about brain function? - Case studies - examination of brain damaged individuals - Animal studies - Imaging studies with humans H uuwznsn'r |.'-'F nus-=st millser Dip-INHIM sway-rebel Imaging Techniques Eiruc'lural imaging - CAT - MRI H uuwznsn'r |.'-'F nus-=st mum-u gunman-1 cumming, Imaging Techniques Funciienal imaging - EEG - PET - ih-‘IRI H uuwznsn'r a: nus-=st willser rap-mum warming. Laealizatian of Functien Earl].I IEase Studies - Brena - Expressive aphasia - Wernieke — Receptive aphasia WWW:— trueturel Urgenizetien ef the Brain Each have! built upun the next - Hindbrein - Mid brain - Ferebrain “mm WWW:— The Structure 1‘ the Brain e t Breinetem Hindbmi” : Cerebellur'n - Pens - Reticuler Activating System HAS} 1 a. a J . ‘ ,1 H IJHWEEEIITH' I11: I'liEfiflhflh “HIE-Hal flhwmnlm ol Pain-Jolrgl Tha Structure of the Brain Midbraln - Superinr culliculus - visual relay - Lateral calliculus - auditnry relay,r n UHWEFW'!" '3‘ “5'th lIE-llliIIE"-'-'."' PINE-Tim It! Putt-WW The Structure of the Brain FIJFEIblEiI'I - Limbie System p Hypethalamua- hippaeam pua. amygdala - Tnalamua - Elaeal ganglia Will'i'lrfllhl‘ll ul'1hl Linbil: Erin-m _ Wm I. I I 1- q- Hrpetl-Iallrniae J in“ Hull ling“: n UHWEHWT '3‘ “Emmi” Hut-NW." PWWW '2'! Put-WW The Strueture at the Brain FIJFEIblEiI'I - Neeeartex p Deeipital Lebe - viaien r Parietal Lelae - akin aenaea — Hemieeatial neglect — Freaepagneaia p Tern peral LeiJe - auditian p Frental Leiae - meter and executive funeti en H warn-mam nu: nus-=an all-mam n-mmmm -:-| Purse-Ina. The er Lubfl III-[the Central Cull-tn (“II-u!“ I FuI-I-I J I! u- h.- -I--- - - l' rhm " 2.9""- l-Iu-II . 'I. " H “a. 1......”- 13...... 'I'h-I Prlmuflp lunar} 1nd HErIIII-I' Amt 41-! [HI Iran Furl-I. - "Fl-III IIIH. lulu-Hull- . _ “I I'll- H IJHWERQITI' ITIF fiscnhyh m.an flhmmmm ¢l PHI-.rfilrg, Tha Structure of the Brain Furebrain - Hencnrtex r Dccipital. Parietal. Temp-oral. Frontal lobes - Left and Right Hemispheres - Corpus Callusum Luca-alimiuri ul Emir- Flu-{fining IIIIH: l'I-I'I'Ilphtlfl LII. "FF-II." Emmi-I d.- f' {—r-Iu LII-II 'H""-‘I|' I. r 1. .‘fri'. I. -l' ' .-.:1 .1'1. *‘ III-r..- fill-I. :-._"H: r‘ .l‘ PHI-"d"!- _ 1.-..1Il. . ' 3:: 1.3a: .1 -~.._- h_.- 1‘. 'flhfll-t M—Il-Illl-II-I-I kHHI-Ilnufi—fll III-'l-u-ulu'I-II-Im "r'au'l'a : nghI-ttanad sorter pan-3n Mr. Enrnrnnrshg.I —wrr:raafl-.~:~ adult. Llr'l'urlnmy. | |.|'iII|I. livable uh} Hm raw-inn Illa-Ha Farr-amt 1mm 9:: minim: - Cnllateral Sprnuling - Eu hst'rtutinn nf Functinn H win-ream nu: Hsnewwmulm rap-mum why-Petra: Background and historical perspective - Thecry cf Equipctentiality - Thecry cf Lecalizetien H uurn'rns-r-‘r rs raster-err mules-u rap-mum -:-| Purse-km Dther impertant figures in neurepsychclegy - Ramcn Cajal - Neuren Iheery H uur-Irns-rrr nu: nus-1mm mules-u Dip-eremm -:-| Fur-Pele]: The ccnncecticns between neurcns can change ever the lifetime H UHI'II'EHHT!’ FF HEE'EIHE-IH fill-DIM!“ Burt-rum of Put-MW Fenfielct - Localization of function in the cortex electrical stimulation o1 the brain [ESE] - Primary motor cortex {frontal lobe] r controls voluntary rnLLs cles - Eon'iatosenson,r cortex {parietal lobe] r experiences sensation H UHI'I'EHEII'IT cl: tassel-«om mules-H o-p-i-rur-nm of Plfir-JFEJJ' The origins of localization H-IIII'III-IIIu-cl-l I'I'Iu-III H's-1m flotilla- - Gall —Phren ology sh ’IJ-{fu-.I.. .... - - .H_- - .' ._ I". ~- : I I.... a _. s es: I lh-h.| Ii. xL 1.. ...
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Psych 202 Brain & Behavior Slides -...

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