Neurontranmitter Network Flashcards
Neurotransmitter driven network
Or behavioural modification network- networks identified by neurons using the same neurotransmitter
Brain are networked to creat personality
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Norepinephrine network
Norepinephrine network modulates -attention, arousal, sleep wake, learning,memory,pain,anxiety,mood
Psychostimulants- methamphetamine , Ritalin,caffeine
Image in CCN
Modern imaging techniques - positron emission tomography takes glucose uptake
Functional magnetic resonance imaging tracks blood flow (deoxyhemoglobin in paramagnetic)
Techniques above show areas of activity (function) do not always precisely coincide with defined anatomical zone
Serotonin network
Serotonin network modulates
Locomotion pain sleep wake cycle emotion
Most antidepressants work by increasing serotonin levels
Dopamine network
Modulates motor control and reward centres
Dopamine agonists used to increase health span of individuals with Parkinson’s disease
Dopamine network
Feel good pleasure network
Prefrontal cortex is the area where dopamine signal is actually processed into pleasure
Dopamine can be increase by cocaine and natural endorphins ( from exercise and food)
GABA is the inhibitory of dopamine ( heroin and morphine can stop GABA )
Achtylchloine network
Modulates arousal, sleep wake, learning, memory,sensory info
Alzheimer’s disease low acetylcholine levels and massive loss of cholinergic neurons