UNIT 4 OUTCOME 1 Flashcards
neural bases of learning: changes in the function and structure of neurons during learning
Function: an increase in the amount of neurotransmitters produced and released by the pre-synaptic neurons and greater effects of neurotransmitters at its receptor sites on the post-synaptic neurons.
Structure: involves the growth and strengthening dendritic spines increases and the dendrites therefore becoming ‘bushier’. This has the effect of increasing the surface area of the dendrites, thereby allowing extra synapses.
neural bases of learning: hippocampus
learning new information that will become declarative memory
neural bases of learning: amygdala
emotional learning to associate fear with new unpleasant stimulus.
neural bases of learning: developmental plasticity
refers to changes in the brains neural structure in response to experience during its growth and development. influenced by the genes we inherit, and experiences
neural bases of learning: adaptive plasticity
refer to changes occurring in the brain’s neural structure to enable adjustment to experience, to compensate for lost function and/or to maximize remaining functions in the event of brain damage.
classical conditioning: Unconditioned stimulus
any stimulus that consistently produces a particular naturally occurring, automatic response. The UCS is the Whizz Fizz.
classical conditioning: unconditioned response
the response that occurs automatically when the UCS is present. Its a reflexive involuntary response the UCR is this salivation at the Whizz Fizz.
classical conditioning: conditioned stimulus
the stimulus that is ‘neutral’ at the start of the conditioning process and do not normally produce the unconditioned response. The CS is the bell ringing.
classical conditioning: conditioned response
the learned response that is produced by the CS. The CR occurs after the CS has been associated with the UCS. The CR is the salivation at the sound of the bell thinking youre getting the Whizz Fizz.
classical conditioning: stimulus generalization
Occurs when the correct response is made to another stimulus that is similar to the stimulus that was present when the conditioned response was reinforced. if a different bell rang generalization would occur if not stimulus discrimination has occurred.
classical conditioning: stimulus discrimination
occurs when an organism makes the correct response to a stimulus and is reinforced, but doesn’t respond to any other stimulus, even when stimulus are similar.
role of the learner in classical conditioning
passive (salivation is a reflex not a choice)
nature of the response in classical conditioning
involuntary (salivation)
timing of the stimulus/response
stimulus occurs before the response (the shorter the time period the better)
classical conditioning: informed consent
wherever appropriate, participants must be informed of the nature and purpose of the research. They must be informed of the procedures, they must have clarification on possible risks or effects and there must be and explanation of the collection and use of information, and their rights to withdraw.