Summary of the prepulse inhibition, blink reflex, and startle reflex data obtained from individuals with restless legs syndrome, Tourette syndrome, Huntington’s disease, and Parkinson’s disease. N: normal; arrow up: increased excitability; arrow down: decreased excitability. (1): Some patients may show normal or increased excitability, (2): some patients may show normal excitability. Adapted from Bucher et al., 1996; Castellanos et al., 1996; Frauscher et al., 2007; Kofler et al., 2001; Swerdlow et al., 1995; Valls-Sole et al., 2004; Williams et al., 2008. Adaptations are themselves works protected by copyright. So in order to publish this adaptation, authorization must be obtained both from the owner of the copyright in the original work and from the owner of copyright in the translation or adaptation.