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Ap Psychology: Drugs & Neurotransmitters Flashcards

note: epinephrine is a hormone NOT a neurotransmitter.

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8259480849psychoactive drugsa chemical substance that alters perceptions and moods0
8259480850neuroadaptaionthe brain's chemistry adaptation to offset the drug's effect1
8259480851tolerancethe diminishing effects with regular use of the same drug requiring the user to take larger doses before experiencing the drug;s effect2
8259480852addictiona compulsive craving for a substance despite adverse consequences3
8259480853withdrawalthe discomfort and distress following the discontinuing use of an addictive drug4
8259480854psychological dependencea psychological need for a drug to relieve negative emotions such as stress5
8259480855drugs that are psychologically dependentcocaine, alcohol, meth, amphetamines, smoking6
8259480856physical dependencea physiological need for a drug to relieve negative emotions such as stress7
8259480857drugs that are physically dependentalcohol, opiates (heroin and morphine), barbiturates, nicotine, meth, amphetamines8
8259480858depressantsdrugs that reduce neural activity and slow body functions9
8259480859drugs that are depressantsalcohol, barbiturates, opiates,10
8259480860stimulantsdrugs that excite neural activity and speed up body functions11
8259480861drugs that are stimulantsamphetamines, methamphetamine, cocaine, nicotine, ecstasy12
8259480862hallucinogenspsychedelic "mind-manifesting" drugs that distort perceptions and evoke sensory images in the absence of sensory input13
8259480863drugs that are hallucinogensLSD, marijuana, ecstasy (mildly)14
8259480864alcohol-affects the parts of the brain that help make decisions, involve impulse control, and memory -binds with GABA receptors making them more inhibitory, and it binds to glutamate preventing it from exciting the cell -also affects dopamine15
8259480865barbituratesdrugs/tranquilizers that depress the central nervous system activity reducing anxiety and impairing memory and judgement -nembutal, seconal, amytal, -affects GABA16
8259480866opiatesopium and its derivatives (morphine and heroin) which depresses neural activity, lessening pain and anxiety temporarily -affect natural opiates (endorphins)17
8259480867heroin-mimics natural opiates -binds to opiate receptor sites turning off dopamine inhibition -dopamine overstimulates cells which results in feelings of well-being and sedation18
8259480868amphetaminesdrugs that stimulate neural activity causing body functions and associated mood and energy changes to speed up -affects dopamine19
8259480869methamphetaminea powerfully addictive drug that stimulates the nervous system, which speeds up body functions and associated mood and energy changes -overtime it reduces baseline dopamine levels20
8259480870crystal meththe crystalized form of methamphetamine that is also highly addictive21
8259480871cocainea psychoactive drug that is used for its euphoric effects -depletes brain's supply of dopamine, serotonin, and norepinephrine -users become fidgety because it concentrates in the brain that controls voluntary movements22
8259480872nicotine-triggers the release of norepinephrine and epinephrine which diminish appetite, boost alertness and mental efficiency -stimulates CNS to release dopamine and opiates -also affects ACh23
8259480873insulapart of the brian in the frontal lobes that lights up when people crave drugs24
8259480874ecstasy (MDMA)a synthetic stimulant drug and mild hallucinogen -mimics serotonin, taken up by its transporters. excess serotonin in the synaptic gap binds repeatedly to the receptor sites overstimulating the cells -results in feelings of emotional elevation and connectedness with those around them "hug drug"25
8259480875LSD (Lysergic acid diethylamide)a powerful hallucinogenic drug that causes feelings of euphoria, detachment and panic -affects serotonin26
8259480876marijuanaleaves and flowers of the hemp plant27
8259480877THCmain active ingredient in marijuana that triggers a variety of effects including hallucinations -molecules bind to cannabinoid receptor sites which turn off the release of inhibitory neurotransmitters so dopamine can be released freely amplifies sensitivity to colors, sounds tastes, and smells28
8259480878misconceptions about addiction1) addictive drugs quickly corrupt 2) addictions cannot be overcome voluntarily 3) the concept of addiction can be extended to cover other behaviors29
8259480879Dopamine-associated with pleasure, addiction -rewards our brains when we do something adaptive -controls voluntary movements -influences learning, attention, alertness, emotion30
8259480880Serotonin-feelings of calmness and satiation -affects hunger, emotions, and moods (HEM) -regulates sleep, pain, arousal, dreaming (SPAD) -involved in perception31
8259480881GABAprimary inhibitory neurotransmitter; reduces anxiety32
8259480882Acetylcholine (ACh)-regulates movement -involved in some kinds of learning and memory33
8259480883Epinephrine-aka adrenaline: hormone which is excitatory -activates a sympathetic nervous system by making the heart beat faster, stopping digestion, enlarging pupils, sending sugar into the bloodstream, preparing a blood clot faster34
8259480884Norepinephrine-aka noradrenaline: chemical which is excitatory -used in ANS and most regions of the brain -regulates alertness, arousal, -affects heart rate, memory, sleep, stress, sexual responsiveness, vigilance, appetite,35
8259480885Endorphins-pleasurable sensations (enhances the release of dopamine) -controls pain36
8259480886Glutamateprimary excitatory neurotransmitter; involved in learning and memory37
8259480887antagonistsdrugs that block the function of a neurotransmitter38
8259480888agonistsdrugs that increase the action of a neurotransmitter39
8259480889Too much DopamineSchizophrenia40
8259480890Too little DopamineParkinson's, ADHD, Tourette's41
8259480891Too much Serotoninreduced hunger and sex drive42
8259480892Too little Serotonindepression, OCD, aggressive behaviors, trouble sleeping, some anxiety disorders43
8259480893Too much GABAsuper relaxed44
8259480894Too little GABAanxiety, insomnia, eating disorders, seizures or tremors45
8259480895Too much AChcontraction of muscles (from the venom of a black widow spider's bite)46
8259480896Too little AChAlzheimer's, paralysis (if shot with curare)47
8259480897Too much Norepinephrineagitation, elevated mood and arousal, high blood pressure48
8259480898Too little Norepinephrinedepression49
8259480899Too many Endorphinseuphoric feelings (in case of opiate use)50
8259480900Too few Endorphinscauses discomfort, grumpiness51
8259480901Too much Glutamatecan cause brain damage (i.e. after a stroke)52
8259480902effects of alcoholdisinhibition, slowed neural processing, memory disruption, cognition-brain shrinkage, reduced self-awareness/control, expectancy effects, sexual situations53

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