John H. wrote:
<...>
> What it definitely suggests is that the idea of classical conditioning is
> not confined to what is typically regarded as 'behavior'. Radical
> behaviorists may not be surprised by the idea that immunological function
> constitutes 'behavior' but if you attend an immunology conference and
> start talking about the classical conditioning of immunological processes
> they are likely to throw you out of the nearest exit.
http://hebb.mit.edu/people/seung/papers/Neuron18Dec03.pdf