The neural representation of elements and memory sets

Each element (basic or top element) is represented by a set of neurons. The number of the participating neurons and their delineation (structural or functional) is not known. The location of memory sets is not known precisely. Especially the fast sensorimotor sets may lie in the prefrontal cortex or the basal ganglia. 

There is no explanation for the size of the elementary time nor for its relative stability over time. 

The possible error of 2ms in measuring the elementary time is relative large 2 ms of 12 ms are 16.7%. The frequencies of the screen and the keyboard are not known precisely, therefore their influence on the measured values cannot be excluded. The only argument against any significant influence is the replicability of elementary times. The precision used by the software in evaluating the raw data (1ms) may be increased if the hardware conditions are proven to give precise data. 

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