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:The spatiotemporal model is well supported because similar spatiotemporal networks are inferred in real fMRI data whether using spatial or temporal independent component analysis (ICA) (Calhoun et al., 2009), general linear model (GLM), seed-based (Whitfield-Gabrieli et al.
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