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Biological Bases of Behavior (Cerebral Cortex (fissures/wrinkles…
Biological Bases of Behavior
Neural Communication
Neurons
Dendrites listen, axons speak
Myelin Sheath
Nodes of Ranvier
spaces between myelin sheath,intensity
Synapse
Neurotransmitters
Reuptake
Endorphins
"morphine within"
pain and pleasure
acetylcholine
dopamine
serotonin
agonists
stimulate
antagonists
inhibits
Action Potential
neural impulse
Positive and negative
Sodium-Potassium Pump
Refractory period
Threshold
All-or-none
Nervous System
CNS
brain and spine
Neural networks
Neurons
sensory (afferent) neurons
sensory receptors > brain
incoming
motor (efferent) neurons
brain > muscles/glands
outgoing
Interneurons
PNS
Somatic (skeletal) Nervous System
Autonomic Nervous System
Sympathetic
arouses
Parasympathetic
calms
fast
nerves
Endocrine System
Hormones
chemical
slow, strong
bloodstream
Adrenal glands
epinephrine/norepinephrine
Pituitary gland
under influence of hypothalamus
important
regulates growth
Tests
CAT Scan
xray
EEG
PET
radioactive glucose
MRI
fMRI
bloodflow
Older brain structures
brainstem
medulla
heart beat and breathing
pons
sleep
thalamus
sensory control center
reticular formation
arousal
cerebellum
movement
Limbic System
Amygdala
Hipoocampus
Hypothalamus
eating,drinking, body temperature
Opponent-Processes
Lateral Hypothalamus (LH)/controls hunger
Ventromedial Hypothalamus (VMH)-/controls satiety
Cerebral Cortex
covers hemispheres
fissures/wrinkles
Gyrus/grooves
Sulcus/ humps
Glial cells
support/nourish neurons
Frontal lobe(judging, planning)
Parietal Lobe(touch)
Occipital Lobe (vision)
Temporal Lobe(auditory)
Functions
Motor Cortex
voluntary motions
Somatosensory Cortex
body touch and movement
Association Areas
Plasticity
Phineas Gage
Corpus Callosum
split brain
Genes
Environment
Interact
Epigenetics
Chromosomes
DNA
Genome
Twins
Identical (monozygotic)
fraternal
Heritability
Evolutionary Psychology
Natural selection