Would non-neural physiological insights be considered to be in the field of neuroscience? For example, would e.g. SCR (skin conductance response) or hormone level be considered to be "neuroscientific measures" according to general definition of neuroscience?
There is increasing scientific evidence to incorporate other organ systems when considering the whole function of the nervous system. Neuroendocrinology, neurogastroenterology, and neuroimmunology are burgeoning fields of research. 

If for instance, you were interested in the effects of stress on neurodevelopment, you would likely want to be measuring cortisol levels in your animal model.

If you were performing a study on human fear response, you might want to record SCR in addition to other measures (EEG, fMRI, etc.).

The definition of neuroscience is intentionally broad. There are many biochemists, for instance, who are interested primarily in cell structure, stability, and the transport mechanisms within who study neural tissue specifically because neurons happen to be interesting cases (axons can be very long, how do nutrients and proteins get to where they need to be?).

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