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The speed of learning instructed stimulus-response association rules in human: Experimental data and model

<24> This paper describes an original psychophysical research method and presents the first experimental data quantifying the speed of stimulus-response encoding in humans. This takes less than 250ms and is therefore most likely to be a monosynaptic process. The response time data are modelled with a new approach that models anatomical propagation delays, explaining for the first time both the average response times and their variability. The proposed new experimental method can be used to measure speeds of other cognitive processes. The results on learning speed will constrain future theoretical models and elicit new measurements, e.g. on synaptic learning.