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:Of interest to motor control researchers are several more recent studies that were designed to examine inhibitory effect in the context of actual aiming/reaching movements to targets (e.g., Briand et al.2000; Welsh and Elliott, 2004b).
Category: