Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:This is not a fundamental issue but a technical one and can be accounted for by re-parametrizing synaptic responses in such a way that changes in α (and/or β) do not influence their maximal heights (Hutt and Longtin, 2010).
Category: