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:These results fit with a dissociating pattern observed in LBD patients by Goldenberg & Karnath (2006), who found that some could imitate hand but not finger postures, whereas others could imitate finger but not hand postures.
Category: