In the Wikipedia article on nuclei one reads:
"The neurons in one nucleus usually have roughly similar connections and functions."
I read this as "a nucleus usually is roughly homogenous", i.e. contains a small number of neuron types, distributed roughly equally and with a roughly homogenous connectivity pattern.
But it is also stated:
"A nucleus may itself have a complex internal structure, with multiple types of neurons arranged in clumps (subnuclei) or layers."
What I would like to know:
Is my reading correct?
Are there really more nuclei of the more simple (homogeneous) type than of the more complex type?
Which are prototypical examples of both of the types (more simple and more complex)?
Which are the greatest nuclei of "the" simple type (with respect to volume or number of neurons, taking "simple" with a grain of salt)?