Altering Consciousness with Drugs Flashcards
Psychoactive drugs (definition)
psychoactive drugs alter functioning in various ways such as emotional, cognitive, behavioural, physiological, etc,.
*favourable alterations drive recreational drug choice
What factors influence drug effects?
-age
-mood
-body weight
-dose
-administration
-expectations (placebo & nocebo)
-tolerance (decrease effects over time)
Commonly abused narcotics (opiates) & effects
(heroin, oxycodone, fentanyl)
heroin, oxycodone, fentanyl
why?: pain relief
effects: euphoria, anxiety reduction
side effects:
-motor function deficits (clumsiness)
-mental function deficits (↓attention/alertness)
-nausea
-lethargy
Commonly abused sedatives & effects
(barbiturates & benzos)
barbiturates (depressants/downers), benzodiazepines
why?: sleep, anticonvulsant
effects: anxiety reduction, reduced inhibitions (relaxed/care-free)
side effects:
-similar to narcotics
-dejection (feeling low, come-down)
Commonly abused stimulants & effects
(cocaine, amphetamines)
cocaine, amphetamines, etc,.
why?: hyperactivity (ADHD), narcolepsy
effects: alertness, energy, excitement
side effects:
-anxiety
-insomnia
-↑blood pressure & heart rate
Commonly abused hallucinogens & effects
(LSD, mescaline, psilocybin)
LSD, mescaline, psilocybin
why?: no medical uses
effects: ↑sensory awareness, altered sense of time
side effects:
-jumbled thoughts
-impaired judgement
-pupil dilation
Cannabis effects
THC, marijuana, hashish
why?: glaucoma, chemotherapy induced nausea
effects: mild euphoria, ↑sensory awareness
side effects:
-anxiety
-mental & motor functioning deficits
-bloodshot eyes
Alcohol effects
ethyl alcohol substances (e.g., wine, beer, etc,.)
why?: no medical uses
effects: mild euphoria, ↓inhibitions
side effects:
-hangover
-mental & motor functioning deficits
-frequent urination
ALDH2 gene mutation
*aka aldehyde 2 gene mutation
alcohol side effects:
-feel sick
-flushed cheeks (“asian glow”)
Drug dependence (physical)
-withdrawal illness avoidance
-drug-related cues also yield symptoms
*highest physical dependence: narcotics & sedatives
Drug dependence (psychological)
-intense craving satisfaction
-key factor: mesolimbic dopamine pathway dysregulation (pleasure-reward system)
*highest psychological dependence: stimulants