Psychology and Sociology Flashcards
sympathetic nervous system response
- increased heart rate
- blood to muscles for movement
- increased blood glucose concentration
- relax bronchi
- decreased digestion and peristalsis
- eyes dilate
- release epinephrine into blood stream
CT scan
X-rays like
PET scan
radioactive sugar to label
MRI
hydrogen atoms –> magnetic field
fMRI
blood flow, neuronal activation
GABA
inhibitory
stabilize neural activity
causes HYPERPOLARIZATION of post synaptic membrane
glycine (brain)
inhibitory
increase chloride ion influx
HYPERPOLARIZATION
glutamate (brain)
EXCITATORY
seratonin
mood, eating, sleeping, dreaming
increased –> mania
decreased –> depression
acetylcholine
transmit nerve impulses
epinephrine
(adrenaline)
act as a hormone
fight or flight
norepinephrine
more local repsonse
decreased leads to depression
increased leads to anxiety and mania
dopamine
movement and posture (basal ganglia)
increased –> schizophrenia (tall dopey skiing)
decreased –> Parkinson’s (short dopey parking car)
classical conditioning
biology instinctual responses to create association between 2 unrelated stimuli
UCS –> UCR
|
|
CS –> CR
extinction
present conditioned stimulus without the UCS
operant conditioning
punishment and reinforcement
behaviorism
ranking of reinforcement schedule
best to worst
- variable ratio
- fixed ratio
- variable interval
- fixed interval
fixed-ratio
reinforce after specific number of performance of behavior
variable ratio
reinforce after varying number of performances of behavior
VR = variable ratio VR = very rapid, very resistant to extinciton
fixed-interval
WORST
reinforce 1st instance of behavior after specific time period has elapsed
variable-interval
reinforce behavior the first time it is performed after a varying interval of time
human memory (4)
sensory
short term
working
long term
long term memory
explicit and implicit | | declarative procedural | episodic or semantic
symbolic interactionism
how we use symbols to interact with each other
*hand gestures, traffic signs
SOCIAL INTERACTIONS