“…Indeed, information processing on these cognitive functions appears to be all but complete so that frontal lobe patients do not show any evidence of dysfunction when tested for them, either directly or with conventional intelligence tests (Brickner, 1936;Hebb, 1939). Rather than adding further detail to the analysis, the frontal cortex utilizes this highly processed information to enable still higher cognitive functions such as a self-construct (Keenan, Wheeler, Gallup, & Pascual-Leone, 2000;Vogeley, Kurthen, Falkai, & Maier, 1999), self-reflective consciousness (Courtney, Petit, Haxby, & Ungerleider, 1998;Vogeley et al, 2001), complex social function (Damasio, 1994), abstract thinking (e.g., Rylander, 1948), cognitive flexibility (Lhermitte, 1983;Lhermitte, Pillon, & Serdaru, 1986), planning (Norman & Shallice, 1986;Shallice & Burgess, 1991), willed action (Frith & Dolan, 1996), and theory of mind (Frith & Frith, 2001;Povinelli & Preuss, 1995;Stone, Baron-Cohen, & Knight, 1998).…”