Block 6 - Psychological Medicine 2 Flashcards
2 characteristics of Schizophrenia
Relapsing
Remitting
What type of symptoms are thought disorder and decreased speech?
Thought disorder: +
Decreased speech: -
4 examples of extra pyramidal side effects
Acute Dystonia
Akathinisia
Parkinsons
Tardive Dyskinesia
Give 3 examples of infundibular side effects
How are they all caused?
Decreased periods, Decreased breast milk production, Infertility
Decrease in prolactin
Which disorder is classed as a syndrome?
Depression
What is the hypothesised cause of Schizophrenia?
+ symptoms: Increased dopamine in mesolimbic tracts
- symptoms: Decreased dopamine in mesocrotisol tracts
What are the arguments for and against the dopamine hypothesis of schizophrenia?
FOR: Antipsychotics work on domamine; drugs that increase dopamine cause psychosis, changes in dopamine activity on brain scans
AGAINST: Drugs take a while to work (another mechanism?)
What causes a hypertensive crisis when consumed with MAO’s
Tyramine
What is the hypothesised cause of depression?
4 other theories
Decreased in neurotransmitters that are broken down by MAO
Behavioural, cognitive, physiological and endocrine
What are the arguments for and against the MAO hypothesis for depression?
FOR: Drugs that decrease MAO work; there are less precursors to MAO neurotransmitters in the blood
AGAINST: Drugs take weeks to work, some drugs don’t target neurotransmiters, cocaine mimics neurotransmitters but is not an antidepressant
What do autoreceptors do?
Cancel out the effects of neurotransmitters
What hormone does anxiety increase the level of?
Cortisol
How do calcium ion changes occur when you are having a panic attack?
Decreased carbon dioxide levels
9 physiological symptoms of anxiety
Decreased concentration and memory
Fear, panic, worry, irritability
Fear of death, danger, losing control
5 unhelpful behaviours associated with anxiety
Avoidance, coping mechanisms (e.g. drugs), pacing, safety behaviours, wringing hands
Define learning
Permanent change in behaviour due to experience
What area of the brain is involved in learning?
Amygdala
Why do we learn?
To adapt and survive
What are the 4 types of learning?
Associative
Complex
Factual Transmission
Vicarious
What is associative learning?
2 e.g.
Learning that events come together
e.g. classical and operant
What is vicarious learning?
e.g.
Learning by observation
e.g. modelling
What is complex learning?
2 e.g.
Learning in social situation
e.g. emotional intelligence
What is factual transmission?
Doing things with information to incorporate it into your brain
What is the difference between continuous and partial conditioning?
Which is more common?
Continuous: Every experience is reinforced
Partial: Reinforcement doesn’t happen every time
Partial is more common