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 signal transduction pathways delineated in this and other studies (Qin et al. 2005, Hu et al. 2007, Seol et al. 2007, Neves et al. 2008b, Vyazovskiy et al. 2008) thus provide convergent evidence for intriguing links between behavioural state and memory control (Walker & Stickgold 2006,…
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