Mod 3 (Sec 2) Flashcards

1
Q

Substance use

A
  • the use of a psychoactive substance
  • can include caffeine, alcohol, cannabis, and other illicit drugs
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2
Q

Substance misuse

A
  • use of a psychoactive substance in a way that causes concern/elevates risk of reduced well-being and poor mental health
  • E.x. regular or excess use when should be in class
  • use of medication for purpose other than described
  • binge drinking (4+/5+ drinks)
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3
Q

Substance use disorder

A
  • clinically significant abuse or dependency which includes psychological and physiological aspects of an addiction
  • worsening physical health, depressive symptoms
  • failure to meet responsibilities
  • problems in relationships
  • assoc. losses
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4
Q

Substance use and dev. brain

A
  • brain is especially susceptible to toxins such as excessive alcohol and drug misuse
  • can be assoc. w/ a number of structural/functional changes in brain during this time
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5
Q

Mental health problems

A
  • substance use can contribute to the dev. and worsening of mental health problems including poor sleep, anxiety, depression, psychosis
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6
Q

Cognition

A
  • substance misuse is assoc. w/ altered brain functions
  • how you think, perceive, and feel
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7
Q

Attention

A
  • substance misuse is assoc. w/ reduced sustained attention, distraction, error
  • using stimulant meds does not help w/ conc. unless have diagnosable ADD
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8
Q

Learning

A
  • regular cannabis and alcohol misuse is assoc. w/ poorer uni performance and higher dropout rates
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9
Q

Motivation

A
  • low drive and low motivation are assoc. w/ substance misuse
    -especially regular cannabis misuse which is assoc. w/ amotivational syndrome
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10
Q

Substance use: alcohol

A
  • WHO indicates most substance misuse and use disorders arise after starting uni
  • alcohol is most common
  • alcohol acts primarily on CNS and functions as a depressant, slows down neural processes and communication
  • disinhibition of normal behaviour
  • disruptions in decision-making
  • slower thinking and responding
  • trouble w/ motor coordination
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11
Q

Binge Drinking

A
  • consumption of excess of alcohol at one point in time
  • assoc. w/ negative outcomes
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12
Q

Binge drinking: negative outcomes

A
  • risk of physical harm (assaults, injury)
  • blackouts, forgetting what happened
  • hangovers
  • poor academic performance
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13
Q

Short-term effects: alcohol

A
  • alcohol is a depressant
  • more drinks will slow brain activity, slurred speech, unsteady balance
  • affects the dopaminergic system, GABA and glutamate systems
  • can lead to coma and death
  • assoc. w/ poor quality sleep, heart palpitations, dehydration
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14
Q

Long-term effects: alcohol

A
  • assoc. w/ toxic effects on the brain; shrinkage of key brain areas for memory and reasoning
  • arrhythmias; irregular heart beat
  • weakened immune system
  • diseases of liver, pancreas, stomach
  • some from of cancer
  • alcohol dementia
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15
Q

Substance use: Cannabis

A
  • second most commonly abused substance among youths
  • psychoactive drug derived from the sativa plant
  • contains many chemicals classified as cannabinoids
  • acts on the CNS
  • variable effects depending on ratio of CBD and THC (hallucinogenic properties)
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16
Q

The Endocannabinoid System

A
  • body has natural cannabinoids that act on receptors all over body to promote normal functioning
  • involved in actions such as appetite, pain, immune system, conc., well-being
  • when using exogenous (from external source) cannabis, this can disrupt the normal system
17
Q

Cannabis

A
  • regular cannabis use (especially w/ high THC:CBD) is assoc. w/ increased risk of worsening or new onset of mental health problems
  • decreased cognitive efficiency, memory, rxn time, motivation
  • effects are amplified if cannabis use starts in adolescence and in context w/ other substances
  • can also inc. risk of cardiovascular disease, chronic obstructive lung disease, some cancers
18
Q

CBD

A
  • second-most abundant cannabinoid in plant after THC
  • many potential therapeutic benefits
  • counterbalancing effects of THB
  • alleviating pain, movement disorders, nausea, calming effect
19
Q

Substance use: Stimulants and Cog. enhancers

A
  • stimulants; class of drug that inc. activity of the brain
  • act on receptors to either block or reuptake or stimulate release of neurotransmitters such as dopamine, increasing their effects
  • most common across pop. is caffeine
20
Q

Positive effects: caffeine

A
  • moderate doses (1-2 cups) can increase well-being, happiness, energy, alertness, sociability
21
Q

Amount of caffeine

A
  • adolescents should not consume more than 100 mg of caffeine/day
  • adults should limit consumption to no more than 400 mg/day
22
Q

Length of effects: caffeine

A
  • the average half-life of caffeine is about 5 hours so caffeinated items should not be consumed after 5 pm. to not negatively impact sleep
23
Q

Negative effects: caffeine

A
  • higher doses are likely to produce symptoms of anxiety, jitteriness, upset stomach
  • can have reverse effect and cause restlessness, nervousness, inattention/distractibility, irritable mood, insomnia, sleep disruption, lower energy
  • ind. can develop tolerance and experience withdrawal like w/ other addictive drugs
  • common withdrawal symptoms; headache, changes in BP, shakiness, reduced cog. function
24
Q

Substance use: non-medical use stimulants

A
  • non-medical prescription drug use is generally defined as use w/ out prescription or use for reasons other than what medication is intended for
  • meds commonly misused by younger people in higher education include stimulants and other illicit drugs
25
Q

Evidence of advantages of use

A
  • lack of evidence for an academic advantage assoc. w/ non-medical use of stimulant meds
  • for students who do not have a diagnosed ADHD it will not improve academic performance
26
Q

Potential harms

A
  • cardiovascular events
  • increased risk behaviours
  • poorer well-being
  • anxiety and agitation
  • poor conc.
  • sleep problems
27
Q

Ketamine

A
  • substance w/ very powerful anesthetic effects
  • mainly used for veterinary medicine
  • recreational effects cause feelings of relaxation/happiness to dream-like and detached
  • special K, vitamin K, donkey dust
  • reduces sensations in body which can lead to injury
  • powerful dissociative effects
28
Q

MDMA

A
  • synthetic drug that is chemically similar to hallucinogens and stimulants
  • produces feelings of increased energy, pleasure, emotional warmth, distorted sensory and time perception
  • affects neural chemicals
  • ecstasy, molly
  • can cause unpleasant feelings and withdrawal
29
Q

Cocaine

A
  • highly addictive stimulant that derives from the coca plant
  • primarily affects the level of neurochemical dopamine in the brain
  • flood of dopamine and then there is a crash
  • crack, blow, coke, rock, snow
  • w/ repeated use, disrupts dopamine circuits making it hard to enjoy normal day life