Fig. 3.

Effects of l-DOPA medication withdrawal in PD. Significant impairments are observed in ToL performance, as measured by latency (a) and accuracy (b; see also fig. 2) and self-ordered spatial working memory (SWM) performance (c; see also fig. 2), but not in visual recognition memory (d), which is impaired relative to age and IQ-matched controls. Sim. = Simultaneous matching. Reproduced from Lange et al. [25], with permission from the publishers.