Personality disorders & addiction Flashcards
(35 cards)
Describe an ankastic personality disorder?
Excessive doubt Preoccupation with rules Preoccupation with productivity Excessive adherence to social conventions Rigidity & stubbornness Insisting things are done their way
What are the Cluster A personality disorders?
“odd & eccentric”
Paranoid
Schizoid
Schizotypal
What are the cluster B personality disorders?
"Dramatic & emotional" Antisocial Borderline Histrionic Narcissistic
What is the drug treatment for borderline PD?
Lamotrigine
What are the Cluster C personality disorders?
“Anxious & avoidant”
Avoidant
Obsessive compulsive
Dependent
3 A’s for remebering cluster A personality disorders?
Paranoid = "Accusatory" Schizoid = "Aloof" Schizotypal = "Awkward"
What are the 4 B’s to remember cluster B personality disorders?
Antisocial = "Bad" Borderline = "Borderline" Histrionic = "Bullshit" Narcissistic = "Best"
What are the 3 C’s for remembering cluster C personality disorders?
Avoidant = "Coward" OC = "Compulsive" Dependent = "Clingy"
Which chemical is the motivating signal within the brain and incensitises behaviour?
Dopamine
What does the orbito-frontal cortex do?
Provides internal representations of the salience of things & assigns them value
What does hyperactivity of the orbito-frontal cortex cause?
Craving
What does the pre-frontal cortex do?
Helps intention guide behaviour - sets goals & makes sound decisions
Keeps emotions & impulses in control to achieve long term goals
What changes does addiction cause in the brain?
Disrupt normal dopamine-related learning in the PFC
When is the PFC vulnerable?
During development asitmatures late
What effect does alcohol have n the brain?
Inhibits the action of excitatory NMDA glutamate controlled ion channels
Potentiates the actions of inhibitory GABAa controlled ion channels
When do symptoms start for alcohol withdrawal?
6-12 hours
When are seizures most likely in alcohol withdrawal?
36 hours
When is delirium tremens most likely in alcohol withdrawal?
72 hours
What is given as prophylaxis against Wernicke’s encephalopathy?
Thiamine
What drug is used to prevent relapse in addiction?
Naltrexone
How long do alcohol withdrawal symptoms usually take to resolve?
5-7 days
What in the brain causes alcohol withdrawal?
Excessive glutamate + reduced GABA activity
What drugs are used for detox in opiate misuse?
Alpha 2 adrenergic antagonist (Clofexidine)
What is used as an opiate substitution therapy?
Methadone