3 - The Biological Bases of Behaviour Flashcards
what are the 2 major divisions in the nervous system?
- central nervous system
- peripheral nervous system
what are the 2 divisions of the peripheral nervous system?
- somatic = voluntary = efferent/afferent nerves
- autonomic = involuntary = parasympathetic/sympathetic
what does the cerebral spinal fluid do?
- nourishes the brain
- protects it from impact
from inwards out, what are the 3 main components of the meninges?
- pia mater
- arachnoid
- dura mater
what do we use to measure brain structure?
CAT scan
MRI
what do we use to measure brain function?
EEG
PET scan
fMRI
ESB
how do we measure brain dysfunction?
TMS
lesion studies
what do lesions studies do and why are they only used in animal cases or case studies?
- destroy parts of the brain
what are the 2 kinds of cells in the nervous system?
- glial cells
- neurons
def: non-neuronal cells in the nervous system
glial cells
what are some functions of glial cells?
- structure
- nourishment
- protection
what are the two kinds of signals emitted by neurons?
electrical –> action potentials
chemical –> neurotransmitters between neurons
what is the resting potential of a neuron?
-70 mV
what neurotransmitter is in charge of mood, sleep and appetite?
serotonin
what neurotransmitter is in charge of pleasure and movement?
dopamine
