Cognitive enhancers Flashcards
serotonin nucleus
raphe
dopamine nuclei
sub nigra, VTA
NA nucleus
locus ceruleus
NA action
attention and arousal
Serotonin action
impulse control and cognitive flexibility
loss in schizophrenia
Dopamine action
reward and learning
NA, 5HT, DA action
cognition and emotion
NA AND 5HT action
anxiety and irritability
5HT and DA action
appetite and aggression
NA and DA action
motivation
inhibit reputake NA>DA/5-HT
atomoxetine (ADHD)
inhibit reuptake NA/DA>5-HT
methylphenidate (ADHD)
inhibit reuptake DA>NA»5-HT
bupoprion (smoking cessation)
inhibit reuptake 5-HT>NA»DA
venlafaxine (anxiety/depression)
inhibit reuptake 5-HT»NA»DA
sertraline (depression/anxiety)
reuptake inhibitors for anxiety
SSRI and TCA
reuptake inhibitors for eating disorders
anorexia and bulemia - SSRI
obesity - amphetamine and sertraline
reuptake inhibitors for behavioural disorders (4)
atomoxetine (NA) (non stimulant)
modafinil (H/NA) - enhances cognition when sleep deprived
methylphenidate - stimulant with calming effect
amphetamine salts
reuptake inhibitors for addiction (2)
bupoprion, atomoxetine for smoking cessation
action of ritalin/atomoxetine
preferentially restore level of catecholamines, improve impulse control
alpha2a adrenoceptor agonist - NA enhances signals
D1 receptors - decreases noise
cause of ADHD
cortical hypofunction
dec subcortical dopamine
reduced impulse control in frontal cortex and striatal region
leads to subcortical vs cortical imbalance
MDMA
inc 5HT
cocaine blockade/amphetamine competition
inc DA/inc NA and DA
impulse control
atomoxetine
amphetamine
obesity - sympathomimetic 5HT reuptake inhibitors
phentermine/fenfluramine
obesity - NA/5HT reuptake inhibitor
sibutramine
obesity - CB1 blocker
rimonabant
obesity - 5HT2C blocker
lorcaserrin
impairment in…. system makes vulnerable to addiction
DA
Parkinsons for learning and memory
achesterase - naergics
parkinsons motor dysfunction
antimuscarinics and DAergics
monoamine pathways
discrete modulation
cognitive enhancers action
monoamine reuptake inhibitors