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:…D ow nloaded from
2000, 2004; Vogeley et al. 2001; Aron et al. 2005; Harris et al. 2005; Mitchell et al. 2005; Ochsner et al. 2005; Ortigue et al. 2007; Lindner et al. 2008; Krienen et al. 2010) are modulated by motivational influences known to affect social perception.
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