Substance Abuse- Key definitions 0.0 / 5 ? PsychologySubstance AbuseA2/A-levelAQA Created by: isobelburdCreated on: 25-02-16 21:42 Addiction A compulsive behaviour where an individual is preoccupied with a drug and maintaining its supply in order to gain pleasure 1 of 16 Physical Dependence The body and brain have ADAPTED to the presence of a drug so that it's needed for normal functioning 2 of 16 Psychological Dependence A mental and emotional BELIEF that the drug is needed for normal functioning 3 of 16 Withdrawal The unpleasant physical and psychological symptoms that occur when a person ABRUPTLY stops taking a drug 4 of 16 The withdrawal symptoms associated with alcohol Insomnia, Anxiety, Tremmor, Seizures, Hallucinations 5 of 16 The withdrawal symptoms associated with nicotine Poor concentration, Headaches, Anxiety, Insomnia 6 of 16 Tolerance A state of progressively decreasing responsiveness to a frequently used drug. A LARGER QUANTITY is needed to achieve the SAME effects 7 of 16 Stimulant (give example) SPEED UP the nervous system by increasing the activity of dopamine e.g. Cocaine 8 of 16 Positive effects of stimulants Increased alertness and attention, improved task performance 9 of 16 Negative effects of stimulants Exhaution, depression, paranoia, irregular heartbeat, increased blood pressure 10 of 16 Depressants (give example) SLOW DOWN the nervous system by increasing the effectiveness of GABA e.g. alcohol 11 of 16 Positive effects of depressants Relaxed, sedated, content 12 of 16 Negative effects of depressants Poor concentration, confusion, lack of coordination 13 of 16 Hallucinogens (give example) DISRUPT communication between neuotransmitters and mimics serotonin e.g. LSD 14 of 16 Positive effects of hallucinogens Distort reality, euphoria 15 of 16 Negative effects of hallucinogens Tremors, panic attacks, paranoia, anxiety, increased heart rate 16 of 16
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