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:Overall, the findings are consistent with our previous work (Leonard and Baum, 1998; Leonard et al., 1997a, 1997b) in demonstrating that RHD individuals can use context under conditions of reduced processing demands.
Category: