= Dopamine
A neurotransmitter involved in multiple neural functions. Some phasic dopamine-neuron responses are consistent with reward-prediction-error signalling, and timed interventions can affect learning. This does not mean that every <dopamine> <neuron> or every timescale carries one identical scalar error.<A causal link between prediction errors, dopamine neurons and learning by Elizabeth E. Steinberg and others>[Abstract and Figures 1–4: associative blocking, extinction and reward-timed dopamine-neuron stimulation]{ref}
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