''Things to fill in: how to test for preferences and aversions; what neuroanatomical/neurochemical substrates might underlie the expression of innate preferences and aversions; plasticity of preferences and aversions'' | ''Things to fill in: how to test for preferences and aversions; what neuroanatomical/neurochemical substrates might underlie the expression of innate preferences and aversions; plasticity of preferences and aversions'' |