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AP Psychology Unit 2 Flashcards

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6530773384NeuronTransmits neurons Dendrites, cell body/soma, myelin sheath, axon, terminal buttons, terminal branches of axon, ranviers0
6532424109Inter NeuronsTake information between neurons1
6532424110Afferent NeuronsSensory Take information at the brain2
6532430446Efferent NeuronsMotor Take information as it exists the brain3
6532432207DendritesReceive messages from other cells Like the ears of the cell4
6530773385Cell Body/SomaThe cells life support center Does normal cell stuff5
6532433793Terminal Branches of AxonForm junctions with others6
6532433794AxonPasses messages away from the cell body to other neuron, muscles, or glands7
6532436156Terminal ButtonsThey are the mouths of the cell8
6532438786Myelin SheathSpeeds up signal Covers the axon of some neurons Helps speed neural impulses9
6532486476RanvierSpace between myelin10
6532502985Some Types of NeurotransmittersAcetycholine: lack of causes alzheimers; found within muscles Dopamine: controls learning, emotion, and movement; lack of causes parkinsons; too much causes schizophrenina Serotonin: involves mood, hunger, and sleep; too much causes depression11
6532602475Synapse12
6532649620VesiclesLittle bubbles that hold neurotransmitters13
6532651418ReuptakeTerminal button collects unused neurotransmitters to use again later14
6532669238AgonistIncrease the amount of a specific neurotransmitter Not about increased energy15
6532669239AntagonistDecreases the amount of neurotransmitters Decreases the effect of the neurotransmitter16
6532685273NeurotransmitterSignal that travels between one neuron to the next They are chemical17
6532702557How Signals Travel Through a NeuronNeurons need to know when to replace neurotransmitters When they get a message they need to send on, they generate an action potential The action potential is an electrical signal that travels down the axon18
6532711903ThresholdNot all incoming signals are strong enough to create an action potential Must be strong enough to reach threshold Called an all or none response19
6532722218Action PotentialElectrical charge inside a neuron Resting state---stimulus(when dendrites collect neurotransmitters from other neurons)---sodium enters the neuron---action potential(release neurotransmitters)---potassium exits the neuron(repelled by sodium)---refractory period(restore) Signals that travel within(inside a single neuron) a neuron are electrical20
6532736161Neuron At RestA resting potential K+=potassium Na+=sodium Like a potato chip, salty(Na) on the outside and potato(K) on the inside Reminder: electrical charges want opposite charges L=+ R=-21
6533756243Refractory PeriodA short time when the cell cannot be active Sodium came inside the cell, potassium left the cell so they must switch back before the cell can be active again22
6534322544Brain StructureLimbic stystem: amygdala, hippocampus, hypothalamus Brainstem: reticular formation, medula, spinal cord Cerebal cortex, cerebellum, thalamus, corpus collosum23
6534318666Limbic SystemAmygdala, hippocampus, and hypothalamus24
6534315887AmygdalaPart of limbic system Neural centers in the limbic system linked to emotion Emotional center25
6534315888HippocampusPart of limbic system A structure in the limbic system linked to memory26
6534320527HypothalamusPart of limbic system Controls maintenance functions such as eating Helps govern endocrine system Linked to emotion/reward Internal clock27
6546799587BrainstemReticular formation Medulla Spinal cord28
6546806057Reticular FormationPart of brainstem Maintains consciousness and awakenness Helps control arousal29
6546812800MedullaPart of brainstem Controls heartbeat and breathing30
6546817315Spinal CordPart of brainstem Pathway for neural fibers traveling to and from the brain Controls simple reflexes31
6546823880Corpus CallosumAxon fibers connecting 2 cerebral hemispheres Sometimes severed to help control severe seizures, the signal for the seizure do not continue if it is severed32
6546823881ThalamusRelays messages between lower brain centers and cerebral cortex33
6546824512CerebellumCoordinates voluntary movement and balance34
6546824513PituitaryMaster endocrine system Produces all of the bodies hormones35
6546843214Cerebral CortexUltimate control and information processing center36
6546844759Evolutionary PerspectiveDesire to survive and reproduce37
6546847305Sensory PathwaysVision/hearing is processed in a series of locations38
6546853548Association AreasMore intelligent animals have increased uncommitted or association areas of the cortex39
6546881634Lobes of the BrainFrontal lobe Occipetal lobe Parietal lobe Temporal lobe40
6546886079Frontal LobeHigh level functions Motor system Problem solving41
6546910900Occipital LobeVisual input is processed Vision42
6546910910Parietal LobeTouch Integrating other senses Main sensory lobe View something ad 1 experience43
6546911404Temporal LobeAudition Hearing44
6546922115Sensory CortexTouch Inner barrier of parietal lobe45
6546922867Motor CortexMovement Inner barrier of frontal lobe46
6546936436Pop PsychologyLike pseudoscience Often begins with a real finding/truth that is then changed in some way to become either over simplified or entirely untrue47
6546937622Right Brain/Left BrainIncorrect Each hemisphere has specific characterisitcs48
6547041963Contralateral OrganizationThe brain is organized contralaterally The left side controls and receives input from the right side and vice versa49
6547042765Hemispheric SpecializationSome functions occur only in or primarily in one side Left side: speech(especially for right handed people) Right side: spatial tasks and recognizing faces50
6547043351Split BrainInformation that is in the left doesn't travel to the right (vice versa) Corpus callosum is separated Left hand can draw a separate shape than the right hand51
6547044080Broca's AphasiaInability to produce language Can't talk or gesture, any type of language Left hemisphere frontal lobe motor cortex damage52
6547044914Wernicke's AphasiaInability to understand language Left hemisphere frontal lobe Can talk but it is gibberish53
6547060975Phineas GageHis social behavior changed after an accident to his frontal lobe His intelligence did not change but he went from being responsible/likeable to being irresponsible/mean Over time he got better due to plasticity54
6547061325Endocrine SystemThe body's slow chemical communication system Set of glands that secrete hormones into the bloodstream55
6547061326HormonesChemical messengers, mostly those manufactured by the endocrine glands that are produced in one tissue and affect another56
6547061778Adrenal GlandsA pair of endocrine glands just above the kidneys Secrete the hormones epinephrine (adrenaline) and non epinephrine (non adrenaline), which helps to arouse the body in times of stress57
6547061779Pituitary GlandUnder the influence of the hypothalamus, the pituitary regulates growth and controls other endocrine glands58
6547068061EEG: ElectroencephalographyMeasures electrical signal in brain Frequently used during sleep Neurons discharge an electrical charge, the EEG reads this Simplest, cheapest, easier to do Used to diagnose sleep disorders59
6547071015MEG: MagnetoencephalographyEvery electric field (as detected by EEG) also has a magnetic field More neurons firing=larger magnetic field60
6547071016PETHave subjects perform 2 tasks Compare the activation between the 2 tasks Called subtraction analysis Measures blood flow Injected with a radioactive sugar More blood flows to neurons who are overworking 3-D picture of the full brain61
6547071911FMRIUses very strong magnets to detect bloodflow Similar to PET Normal MRI then the study(color that specifically tells you something) MRI+color62
6547071912TMSUses a wand to send pulses through the skull and target area Send strong short pulses to excite the area targeted *or* send weaker longer pulses to inhibit the area targeted63
6547072481Single Cell RecordingsUsed extensively in animal studies A micro electrode is inserted into brain tissue and recordings of action potential can be made from nearby neurons, ideally a single neuron Not used on humans64
6547072829Central Nervous SystemThe brain and spinal cord are part of this system65
6547074179The BrainCreates our thoughts Organizes our memories66
6547074197The Spinal CordExtends from the brain stem to the lower back Responsible for reflexes Connects brain to body67
6547073206Peripheral Nervous SystemIt is located outside the central nervous system Everything but brain/spinal cord Nerves Autonomic system Somatic system68
6547075018Autonomic SystemDoesn't require you to think about it Automatic Parasympathetic system Sympathetic system69
6547075811Parasympathetic SystemIn charge most of the time Keeps everything balanced Restores the body's energy reserves70
6547076468Sympathetic SystemMakes body race Suppresses digestion Increases heart and breathing rate Acts during times of stress71
6547076469Somatic SystemVoluntary movements72
6547077575NatureBiological influences73
6547078987NurtureEnvironmental influences74
6549359924Clark and Hatfield 1978Random strangers, "I have been noticing you around campus and I find you to be very attractive. Would you go to be with me tonight?" Women=0% Men=75%75
6549362602Gender Differences BiologyTestosterone responsible for aggressive behavior Girls who are exposed to too much in the womb become like the case of Brenda(John or Joan)76
6563991847Men Gender Differences40% more muscle Die 5 years younger More commit suicide More autism 9 times more likely to murder Suffer from male answer syndrome, always want to give you an answer77
6563998224Women Gender Differences70% more fat Express emotions freely More depression/anxiety More religious More eating disorders(10x) More social connections More attempts to suicide78
6564004096Women BrainLarger area in frontal lobe for verbal fluency79
6564004097Men BrainLarger area in parietal lobe for space perception80
6551191051Animal StudiesNature/Biology - Belyaev and Trut, tame foxes for 40 years using selective breeding Nurture/Environment - Kolb and Whishaw, impoverished rats, enriched environment led to brain cells that connect to more neurons81
6551186188Brief TangentSiblings get 1/2 of their genes from mom and 1/2 from dad Regular siblings share about 1/2 of genetic material Fraternal twins:50% but same womb Identical twins:100%82
6551186187Twin StudiesTwins are raised in same environment, nature/nurture is similar because the share DNA and environment Some scientists argue that their similarities are a coincidence83
6551193785Nurture ArgumentsAdopted infants- fewer problems than infants whose mother's changed their minds Kids usually get values from parents Cultural norms- North Americans vs. Mexicans and personal space84
6551195623Heritability IndexHow much of the differences between use are due to what we inherit(genes/nature) Group differences, not how much you as an individual inherit85
6551195624Determine HeritabilityIf the differences between people can be accounted for by mostly nature there is high irritability If the differences between people can be accounted for by mostly nurture there is low heritability86
6551203640Endocrine System OrderHypothalamus---pituitary---adrenal glands---adrenaline---heart87
6551208760Nervous System OrderSpinal cord---efferent neuron---motor organ88
6551211246Afferent Neuron OrderNeurotransmitter---synapse---receptor site---dendrite---soma---axon---nodes of ranvier---terminal buttons---vesicles89

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