click below
click below
Normal Size Small Size show me how
psychology un4 ch12
the neural basis of learning
Term | Definition |
---|---|
Adaptive plasticity | The ability of the brain to change,adapt and group throughout life (but does diminish with age). |
Circuit formation | Axons of new neurons growing out to target cells and form synapses with them. |
Circuit pruning | The elimination of excess neurons and synapses. |
Critical periods | Narrow period of time in an animal's development when it must have a certain experience to ensure specific learning. |
Developmental plasticity | The ability of synapses to be modified as an infant or child. |
Experience-dependent learning | Learning which occurs at any time during an individual's life as a result of experience. |
Experience-expectant learning | Occurs during sensitive periods and refers to experiences necessary for learning to occur. |
Migration | During developmental plasticity, the movement of newly formed neurons. |
Myelination | A process in the brain whereby the axons of the neurons in a child's brain become covered in myelin, a white, fatty covering that insulates a neuron's axon and speeds transmission, continuing until the early 20s. |
Neural pathway | Bundles of neurons which provide connections between one part of the nervous system and another. |
Neurotransmitter | Chemicals that help the communication across nerve synapses. |
Proliferation | The first stage in the development of the nervous system, where cells destined to become neurons multiply. |
Reorganisation | A reordering of neural connections so that an existing part of the brain adopts a new function. |
Sensitive periods | Periods in time which are particularly suited to learning things due to the nature of the growing brain. |
Synapse formation (synaptogenesis) | The process of moulding or forming new synapses. |