block d lecture 4 Flashcards
consciousness
what system is involved in wakefullness
ascending reticular activating system
what part of the brain is more receptive to information when awake
cortex
what is wakefullness primarily associated with increased release of
noradrenaline
5HT
what does sleep require
energy
possible functions of sleep
conserve energy
rest and recovery from daily activity
what is increased in sleep
ACh
what does REM stand for
rapid eye movement
what does the limbic system control
behaviour
what does the limbic system control
behaviour
what is primary motivated behaviour
homeostasis
what is secondary motivated behaviour
indirect link to primary goal
(choosing what food to eat)
what is nucleus accumbens
pleasure centre
what does pleasure lead increased release of what
dopamine
what do amphetamines and cocaine block
dopamine reuptake
leading to increased duration of stimulus
what does chronic use of amphetamines and cocaine lead to
changes in gene expression
addiction
what are inner emotions
fear, love, anger, joy, anxiety
what is emotional behaviour
change in autonomic, hormonal, motor activity, and outward expressions
what is schizophrenia
improper regulation of infomation
leading to delusions, hallucinations, inappropriat emoods, motor behav
what is there an over activity of in schizophrenia
meso-cortiscal dopamine pathways
what is there a change in in bipolar disorder
NA
5T
dopamine activity
what is there decrease in activty in depression
limbic system and prefrontal cortex
what is learning
acquisition of infomation
what is memory
ability to recall info that has been stored
what is working memory
current, temporary info
what is long term memory
infomation not currently in our attention
2 types of long term memory
procedural
declarative
2 types of long term memory
procedural
declarative
what is alzheimers caused by
cell death in cortex and hippocampus
decrease in cholinergic neurons in cortex
how many stages are there to alzheimers
3
what does LTP stand for
long term potentiation
what does LTP stand for
long term potentiation
what is LTP
increased effectiveness of neurotransmission
initated by high freq stimulation
