In the second model each neuron is exposed to each treatment, such that
there are 3 measures per individual neuron. In the first model, each
neuron is measured once. So in the second model, I had thought it was
like a nested repeated measures ANOVA, analogous to the book example
with the repeated factor being treatment and neuron nested in animal.
And I thought the first example was somehow different. I see that
location is the repeated "treatment" on every animal, but I thought
neuron should be nested in location not animal. Am I wrong or does what
happens underneath make this point irrelevant? Should neuron be nested
in animal in both models? Maybe my diagrams should be represented
differently.
