Week3 Flashcards
behavioral activation system (BAS)
- Activity of the left hemisphere, especially its
frontal and temporal lobes - tendency to approach
- happiness or anger
- happier extraverted
behavioral inhibition system (BIS)
- right frontal and temporal lobes
- tendency to avoid
- socially withdrawn, cautious, prone to unpleasant emotions
cortisol
+anxiety
-anger
Emotions
- Feelings -affective appraisal
i feel afraid - Cognition- cognitive appraisal
i should not be doing this - Actions- response
heart rate increases
limbic system
- basal ganglia
- thalamus
- hippocampus
- amygdala
- hypothalamus
- cingulate gyrus
James- Lange theory
stimulus- >autoarousal- > conscious feeling
criticism-> physiological events do not guarantee emotion and sometimes same physiological event causes different emotions
Canon - Bard theory
stimulus - subcortical activity - independently conscois feeling and arousal
Theory of constructed emotion
duygular beynin durumlara yonelik bodily stateleri durumlara gore yorumlamasidir. Boylece insan nasil tepki verecegini bilir.
moral decisions
pfc
cingulate gyrus
low MAO activity
more agrression in children with maltreatment
Amygdala
responsible for detecting emotional information
directing it to other areas of brain to pay attention
top-down control of amygdala
pfc inhibits amygdala activity.
PTSD
- an anxiety disorder
- smaller hippocampus makes you more vulnerable for PTSD
Panic Disorder
- Increased orexin
- decreased GABA
Benzodiazepines
(Valium, Xanax)
- Anti anxiety drugs
- on Amygdala,hypothalamus,midbrain
- more GABA activity.
general adaptation syndrome
Alarm stage:
* release of hormones from adrenal glands
epinephrine- increased activity of sympathetic ns
cortisol - increased blood glucose
aldosterone -maintaining blood salt and volume
* suppression of less urgent activities
Resistance stage:
* decline of sympathetic response
* cortisol and other hormones levels are still high to prolong alertness, fight infections and heal wounds.
* decrease activity to save energy
Exhaustion stage
Anticipatory stress response
modern yasamin stress-related sorunlari
HPA-axis
-
hypothalamus
releasing factor
* pituitary gland
(ACTH) through blood -
adrenal cortex
(Cortisol)
leukocytes
(white blood cells)
B-cells
T-cells
Cytotoxic T-cells: directly attack
intruder cells
Helper T-cells: stimulate other T-
cells or B-cells to multiply.
**Natural killer cells*
Leukocytes and other cells
produce cytokines
Cytokines
Small proteins that combat infections and communicate with
the brain to elicit appropriate
behaviors.
Prostaglandins
Chemicals the immune system
delivers to the hypothalamus,
causing a fever.
Prolonged stress
neurons in hippocampus are more vulnerable to
damage by toxins or overstimulation–> impaired memory
Resilience correlates with
stronger connections between the
amygdala ~ Prefrontal cortex
