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:Our results are consistent with the other studies that find a deficit in contralateral feature search (Riddoch and Humphreys, 1983; Eglin et al., 1989; Pavlovskaya et al., 2002).
Category: