introduction to BBB Flashcards
(29 cards)
what is somatic intervention?
manipulation of the brain to change behaviour e.g - using alcohol to reduce anxiety
what is behavioural intervention?
manipulating behaviour to change the size of Brian areas e.g - London taxi drivers have a larger hippocampus
what is correlation in the brain?
when the body and the Brian co-vary - parallel changes brain and behaviour e.g - OCD and serotonin
outline levels of analysis
social level
- individual behaviour in social interaction
organ level
- brain, spinal cord, peripheral nerves and eyes
neural system
- eyes and visual brain registration
cellular level
- single neuron
synaptic level and molecular level
BBB though the ages
Aristotle - brain to cool blood
Galen - head injuries modify behaviour
Descartes - dualism/ mind and body = behaviour
William James - consciousness and human experience/ nervous system
Donald Hebb - behaviour and neural function are correlated
dualism
soul produces behaviour
dualism (Descartes)
body and brain is a machine which produce breathing
materialism
behaviour is produced by the nervous system
function of the cerebellum
detects motor errors and improves them, dense with neurone and regulates balance and motor skills.
little tail at the bottom back of brain
function of occipital lobe
visual signals from the retina, passes info onto the temporal lobe to co-ordinate recognition
function of the frontal lobe
decision-making, personality, motor control, codes info from environment, ensure we only focus on relevant info
function of parietal lobe
codes info from the environment e.g - taste, touch, temperature.
function of temporal lobe
houses memories, language and emotion comprehension.
contains the hippocampus, Wernicke’s area.
what is Wernicke’s area
allows us to comprehend language, when damaged means someone can not understand words
what is Boroca’s area
speech production, when damaged can not produce
what is an EEG
measures the electrical activity of the brain, during sleep, measures activity in response to a specific stimulus
MRI scan
identifies different regions of the brain and nervous system
FMRI
measures blood flow in the brain during mental activity, identify where brain activity occurs
TMS
increases and decreases brain activity, establishing a role in different brain regions.
outline the nervous system
nervous system
central nervous system - brain - spinal cord
peripheral nervous system - somatic nervous system - autonomic nervous system - enteric nervous system
function of somatic nervous system
picks up info from the environment to send to the Brain to encourage movement.
afferent pathways - coming into the body
efferent pathways - coming out of the body
how many cranial nerves do we have
12
how many spinal nerves do we have
31
function of the sympathetic nervous system
fight or flight
prepares body for action by increasing heart rate and blood pressure