“…Our findings add weight to the notion that the right striatum occupies a key position in evolving expert performance, as has previously been shown in professional musicians (James et al, 2013), chess players (Haslinger et al, 2004), athletes (Duan et al, 2012) and here, in simultaneous interpreters. This notion is compatible with the wideranging roles of the basal ganglia, which include cognitive pattern generation (Milton et al, 2007;Yarrow et al, 2009), action pattern selection and refinement (Graybiel, 1997), and prediction (Houk et al, 2007), and in learning, memory and motivation more generally. Expertise requires the ability to rapidly and dynamically respond to various inputs within the trained domain, and requires the flexible deployment of acquired action repertoires -a role tailor-made for a structure that is profoundly implicated in the control of goal-directed action (Kotz et al, 2009).…”