lecture 3: biological bases of behaviour Flashcards
1
Q
functions of limbic system
A
- hippocampus: new learning and formation of memories
- amygdala: process emotion, interpretations of non verbal emotional expression
- hypothalamus: endocrine function, regulate fear, metabolism, thirds, sexual drive, aggression
- thalamus: relay station that processes sensory information
2
Q
neurotransmitters associated with depression
A
- serotonin
- dopamine:
- norepinephrine:
- acetylcholine:
- glutamate:
- GABA:
3
Q
serotonin
A
sleep, mood, anger sex. behav., eating. lower in ppl with depression.
4
Q
dopamine
A
reward, pleasure, happiness. associated with substance abuse and psychosis
5
Q
norepinephrine
A
stress and anxiety
6
Q
acetylcholine
A
memory, learning recall
7
Q
glutamate
A
excitatory (role in bipolarism)
8
Q
GABA
A
inhibitory transmitter, reduces anxiety
9
Q
effect of neglect and toxic stress on brain development
A
- ongoing diminished levels of stimulation and enrichment can lead to developmental delays
- hippocampus function can be dampened with too much cortisol
10
Q
hormones and depression
A
- cortisol tends to be higher
- eostrogen and testosterone are lower
11
Q
sequence of brain development
A
- primitive areas: sleep, limbic, emotion
- cortical areas: thinking and cognitive processes
- prefrontal cortex: executive functions
12
Q
clinical context of toxic stress
A
- hyperactivity (not adhd)
- over-ractiosn to mild stressful situations
- withdrawn or hyper vigilant
- learning difficulties
