4515002
Description
Mind Map by psycho.unicycler, updated more than 1 year ago
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Created by psycho.unicycler
almost 9 years ago
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Basis of Behaviour by Alex
- Neuron structures & functions
- Dendrites receive messages, Axons send messages, Myelin sheaths speed messages up, terminal buttons release neurotransmitters
- resting potential , when a neutron is inactive
- Action Potential, a brief shift in electrical charge
- All or None Law, Neuron fires or doesn't no in between
- All or None Law, Neuron fires or doesn't no in between
- Synapse
- presynaptic neuron sends signal, postsynaptic neuron recieves signal
- neurotransmitters tiny chemicals transfer info
- Acetylcholine, attention voluntary muscles, arousal & memory
- Antagonist: blocks neurotransmitter, Agonist: acts like neurotransmitter
- Dopamine, voluntary muscle movement
- Serotonin, associated with sleep & eating
- Norepinephrine , mood & arousal
- GABA (inhibitory) and Glutamate (excitatory), help regulate anxiety
- Endorphins, like opiates are for pain relief & pleasure
- Acetylcholine, attention voluntary muscles, arousal & memory
- presynaptic neuron sends signal, postsynaptic neuron recieves signal
- Dendrites receive messages, Axons send messages, Myelin sheaths speed messages up, terminal buttons release neurotransmitters
- Nerve Systems
- Central nervous system
- Brain & spinal cord, send & receive messages
- Brain & spinal cord, send & receive messages
- peripheral nervous system, includes nerves that branch or spinal cord
- Somatic nervous System, includes nerves around skeletal muscles to sensory receptors
- afferent nerve fibres carry messages inward while efferent ones carry messages outward
- afferent nerve fibres carry messages inward while efferent ones carry messages outward
- autonomic nervous system , associated with fight or flight
- Parasympathetic nervous system, rest & digest
- Central nervous system
- Brain tests & research methods
- electroencephalo-graph (EEG), monitors electrical activity with electrodes
- Also important for researching sleep
- Also important for researching sleep
- Lesioning , refers to destroying a piece of the brain
- Electrical Stimulation of the Brain, sends electrical signals to stimulate the brain used in surgery
- . Transcranial Magnetic Stimulation, enhance or depress brain activity creating virtual lesions
- Brain-Imaging
- CT scan (computerized tomography, uses x-rays to study structures of the brain
- PET scan (positron emission tomography) , used to map brain activity with radioactive chemicals
- MRI scans (magnetic resonance imaging), make a 3 demential picture using radio waves
- fMRI (functional MRI), better MRI includes blood & oxygen flow
- CT scan (computerized tomography, uses x-rays to study structures of the brain
- electroencephalo-graph (EEG), monitors electrical activity with electrodes
- Hindbrain
- medulla, auto responses like breathing & reflects
- cerebellum, coordination , movement
- Pons, sleep & arousal
- mid brain
- sensory processes & dopamine pathways
- forebrain, limbic system
- thalamus , sensory
- hippocampus, memory
- amygdala, fear responses
- hypothalamus , pleasure centre
- thalamus , sensory
- sensory processes & dopamine pathways
- Cerebrum, for cognitive thinking , remembering & learning
- medulla, auto responses like breathing & reflects
- Endocrine system
- controlled by the nervous system via pituitary gland to release hormones for long lasting effects
- controlled by the nervous system via pituitary gland to release hormones for long lasting effects
- Genetics
- Behavioural genetics , based on behaviours of organisms not traits
- Genes contain DNA to pass traits
- there are dominate & recessive genes (dominate always win)
- there are dominate & recessive genes (dominate always win)
- Genotype , persons genetic makeup
- Molecular scientists do genetic mapping to see where specific genes are
- Behavioural genetics , based on behaviours of organisms not traits
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