Fig. 7.

Phase–space plot comparing the current data with those presented in Browning et al. (2005). Data are plotted as mean preoperative percentage error against mean percentage error following the second surgeries in the disconnection procedure, or the only surgery in group Bilateral PFC. Each point represents the mean pre- vs. postoperative performance on a given repetition of lists of new scenes. The central diagonal line represents performance that is identical prior to and after surgery. As such, points below this line represent an improvement from pre- to postoperative performance tests, and points above it represent an impairment in performance from pre to post. Group vFL(saline) × IT shows a small improvement, whereas impairments are clear in groups Bilateral PFC, vFL(neurotoxic) × IT, and FL × IT. The impairment in group vFL(neurotoxic) × IT was mildly less severe than that of group FL × IT. FL, frontal lobe; IT, inferotemporal cortex; PFC, prefrontal cortex; vFL, ventrolateral frontal cortex.