psych study guide 4 Flashcards
Psychoactive drugs
are substances that change perceptions and moods, meaning the sensory information is the same but our perception of that information is altered.
Addiction
occurs when bodies chemically adapt to these drugs, and require greater amounts each time to achieve an altered state, or, in some cases, just to feel normal and devoid of pain.
Withdrawal
severe discomfort and distress after discontinuing an additive drug or behavior (after someone is taken off the drug).
There are three primary types of drugs, or drug effects, which can be divided into?
depressants, stimulants, and hallucinogens.
Depressants
are drugs that reduce neural activity and slow body functions; the three primary subgroups of depressants are: alcohol, barbiturates, and opiates.
is a dis-inhibitor which slows brain activity that controls judgment and inhibitions; this can cause people to be more talkative, do things they would otherwise be too nervous to do or consider inappropriate, or make bad judgements like driving while intoxicated or enhancing sexual aggression.
alcohol
are essentially tranquilizers, like Nembutal, Seconal, and Amytal (prescribed to induce sleep).
Barbiturates
(one of the most addicting drugs) endorphin-mimicking painkillers that bring a rush of warm, euphoric, and lifting feelings that can disrupt natural endorphin use and creation. Opiates often cause the user’s pupils to constrict, slow breathing, and lethargy sets in as blissful pleasure replaces anxiety.
opiates
Stimulants
are drugs that excite neural activity and speed up body functions, causing a rise in breathing, heartbeat, energy, and confidence.
examples of stimulants
caffeine, nicotine, amphetamines, cocaine, ecstasy, meth
much like nicotine, provides a rush of euphoria, but depletes one’s own dopamine, serotonin, and norepinephrine by blocking their reuptake.
cocaine
increases dopamine, euphoria, alertness, and energy for 8 hours, followed by a crash of irritability, social isolation, depression, possible seizures, hypertension, and the likelihood of violent outbursts.
Methamphetamine
Hallucinogens
are drugs that distort perceptions and evoke sensory images in the absence of sensory input (simply put: hearing and seeing things that aren’t there)
which presents a stream of uninterrupted fantastic pictures, shapes, colors, etc., ranging from euphoria, to detachment, to panic.
LSD
(found in cannabis), which can evoke both agitation & hallucinations by amplifying colors, sounds, tastes, smells, and can produce a euphoric high
THC