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| Scientific Study of behavior and mental processes |
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| A systematic way to acquire knowledge and understanding |
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Bodies electrochemical communication system
made up of billions of nerve cells |
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| How Nuerons communicate with eachother |
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| Nuerons communicate with eachother through a meeting point known as a synapse, there is a gap between the axon terminals and the dendrites known as the synaptic gap, nuerotransmitters go across this gap to blind receptors of the receiving nueron and then a electrical signal is triggered |
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| How do drugs affect nuerotransmitters? |
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| affect it at synapses by amplifying or blocking a nuerotransmitters activity |
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| Nervous System Organization |
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Peripheral System & Central Nervous system
AUTONOMIC- controls self regulated action on internal organs and glands
-sympathetic (AROUSING)
-parasympathetic (CALMING)
SOMATIC- controld voluntary movements of muscles |
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can look at electrical activity using an electroencephalogram (EEG)
PET
MRI
fMRI |
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| axon fibers connecting right and left hemisphere of the brain |
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| relays messages between lower brain centers and the cerebral cortex |
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| controls maintenance functions such as eating helps govern endocrine system |
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| contols heartbeat and breathing |
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| pathway for nueral fibers, controls simple reflexes |
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| coordinates voluntary movement and balance and supports memories of such |
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| system that sends messages to hormones to affect how they act and what they do |
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Zygotes form
zygotes inner cells become embryo
over next 6 weeks organs begin to function
fetus is now recognzable |
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Brain:
At birth we possess all brain cells, but all connections are not developed. Expierience develops these connections
Motor:
Sequence is universal, timing varies, biological maturation is needed |
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all mental activities associated with thinking
process by which a childs understanding of the world changes |
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| harmful agents or viruses allowed to get into baby, like HIV, heroin addiction, smoking, and drinking, all of these go from mother right to baby in stomach |
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| children reason differently then adults, and their mind develops from simple reflexes to |
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