Class notes

Intro to Psychology; Neuroscience

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Course
PSY2012

Institution
Palm Beach State College

Organized Notes on the neuroscience lesson in College level intro to psychology class. Includes photos, diagrams, highlights, and a key. Easy to follow along and understand. Organized handwriting. Topics covered are an introduction to neuroscience and include: neuron anatomy, signals in the brain, ...

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Uploaded on August 18, 2024
Number of pages 5
Written in 2023/2024
Type Class notes
Professor(s) N/a
Contains All classes

intro to psychology
neuroscience
the brain notes
neuron notes
neuron anatomy
synaptic transmission
neurotransmitters
the cortex
the lobe
endocrine system
how the brain is s
structure of nervous system

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INTRO TO PSYCHOLOGY NOTES: ALL YOU WILL NEED

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1. Class notes - Intro to psychology; sensation and perception notes
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3. Class notes - Intro to psychology; neuroscience
4. Class notes - Intro to psychology; cognition, language, intelligence notes
5. Class notes - Intro to psychology; human development
6. Class notes - Intro to psychology; memory
7. Class notes - Intro to psychology; personality
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Key
Chapter 2 Neuroscience totalkaboutinclass
Neuroscience howbrain nervoussystemaffectmentalprocesses andbehavior iii
how doesbraincommunicate vocabulary

info
important
Neurons cellsthattransmitinfo

Also gliacellsbraincellsgiveimportantfunctiontoñÉuÉns donotconductnerveimpulses
formmyelin fattywaxystuffthatsurroundsneuronssosingnalmovefaster
Nomyelinmultiplesclerosis

Neariratomy

canbehundredmicrometersmanycentimeters
axons
re chemical
messengerscarryneural acrosssynapse
signals

apse connectionformedwhenaxon
bulbgets
closeto dentriteoranotherneuron
Inenection
hasna
are
synapticneuron

euronthatissendingsignalatsynapse eachneuroncansynaps with upto 10,000otherneurons
synapticgap the
signs
sostsynaptic neuron

euronthatreceivessignalat a synapse Brainuseselectrochemicalenergymadebyions sig
off
nagging
Braintissue gliacellsneuronssurroundedbyfluidwithdifferentions

restingpotential whenneuronisrestingionchannelsstopNat sodium
thedifference fromgoinginthecell highconcentrationofNatmakeouts
in charge conornegative
cellhigh
cellpositiveInside ionsnegativecharge
important in creating
neuralsignals

Aerotentialshownearonsfired
whenneuronsgetsignalsfromotherneuronsitcanmakecellmore tort
if signalmakesneuronmore t mayreachthresholdofexcitation ssmv
ionchannelsopenallowNattoenter

allornonelaw allactionpotentialsareequalinstrengthsowhenisfiredgoesallthewaydowntheaxon

refractoryperiod brieftimeafter
neuronfired doitagain
actionpotentialitcant

, synaptic
transmission

actionpotentialreachesaxonbulb neurotransmittersintosynaps
comein contactwithreceptors changein electricalpotential
lock3Key
excitation whenneurotransmittermakespostsynapticcellmorepositiveinsidemorelikelyto
fireactionpotential Glutamate
VS
inhibition causesinsideorpostsynapticcelltobecomemorenegativetomoveawayfromthresholdofexcitation
GABA
axon addsupthe two signalsandonlywhenthesummovesrestingpotential
to threshold theneuron will fire actionpotential

reuptake neurotransmitters removedfrom synapse3returned topresynaptic

chemicalmessengers
in theBrain 2.2
neuro
modulator chemicalsthataffectsignalingwithout
directlychangingrestingpotential

the1stneurotransmitterdiscovered Acetylcholine Acn
consciousnessand
inhibitsactionofheart exciteskeletalmuscles memory
pplw alzheimer'slackneuronsreleasingAch

Dopamine Serotonin

neurotransmitter movementmotivation neurotransmitter sleeparousalmood
learningandreward eatingpainperception
Parkinson's lossordopamine lackofserotonin depression anxiety
schizophreniatoomuchdopamine drugspreventitsreuptake
releaseshormone
norepinephrine nor adrenaline

neurotransmitter regulatesleeparousalmood energyattention

ammaaminobutyricacidGABA marinnibitoryneurotransmitter inbrainRegulatearousal

lutamate manexciatoryneurotransmitter inbrainFoundin 50 ofsynapsestoomuchcankillbraincells

Endorphins

neuromodulatorsthatactlikenaturalpainkillers
similartoopiatesopiumheroinmorphinecodein
releasedincuswhenstressedphysicalexertionorinjury
structure or
nervoussystem

cons brain's
Centralnervoussystem spine

peripheral nervoussystem Pns allnervoussystembsbutbrainandspine

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