Cognitive Training in Parkinson’s Disease: A Review of Studies from 2000 to 2014

Table 1

Classification of studies of CT in PD according to design.

Single group, uncontrolled studies	Waitlist-controlled studies	Studies comparing CT to standard treatments	Comparing different CT interventions
Sinforiani et al., [68]; Mohlman et al., [69]; Disbrow et al., [70]	Nombela et al., [71]; Naismith et al., [72]; Edwards et al., [73]	Sammer et al., [74]; París et al., [75]; Pompeu et al., [76]; Peña et al., [77]; Cerasa et al., [78]	Reuter et al., [79]; Petrelli et al., [80]; Zimmermann et al., [81]