US AOS2 Flashcards
Neural Plasticity
Changes to the brain’s neural structure or function occurring at the synapse Neural connections are formed removed and remade on a continual basis providing the physiological basis for learning and memory
Types Of Plasticity
Synaptic Plasticity
Adaptive Plasticity
Developmental Plasticity
Synaptic Plasticity
.. refers to the ability of the synapse to change over time
Adaptive Plasticity
… refers to the ability of the synapse to change over time a result of stimulating experiences and changes in the environment.
Developmental Plasticity
… refers to rapid changes to the brain that happen with more ease in foetal development, babies, children and adolescents.
Long Term Potentiation
Long lasting strengthening of synaptic connections, making synaptic transmissions more effective
Long Term Depression
Long lasting decrease in the strength of synaptic connections, making synaptic transmissions less effective
Post synaptic neuron becomes less responsive
The effect is to weaken or silence communication at the synapse
Neurotransmitters
Neurotransmitters enable communication of the information being learned and initiate or contribute to important structural changes at the synapse that help ensure the memory is durable and long-lasting when formed
Neurohormones
Some neurohormones also have roles in learning and memory. Like neurotransmitters, neurohormones are chemical messengers that are manufactured by neurons and released from axon terminals
Neurotransmitter example
Glutamate
Neurohormone example
Adrenaline