When conducting an experiment on how stimuli are represented by the firing of neurons, you notice that neurons respond differently to different faces. for example, arthur's face causes three neurons to fire, with neuron 1 responding the most and neuron 3 responding the least. roger's face causes three different neurons to fire, with neuron 7 responding the least and neuron 9 responding the most. your results support coding.

taking into account that neurons respond differently to different faces I can say that there are two ways in which neurons code the stimuli intensity.

1. frequency coding: that means that  the firing rate of sensory neurons increases with increased intensity.

2. population coding: that means this way stimuli is represented by using the joint activities of a number of neurons. Also called RECRUITMENT.

Explanation:

in this case, the results support number 1, frequency coding.

answer; /// i believe that the correct answer is (d); /// alternate walking and running;

the answer is b its not mature