“…They were delivered in various formats, including individual sessions (Barnes et al, 2009; Boripuntakul et al, 2012; Carretti et al, 2013; Finn & McDonald, 2011
Greenaway et al, 2013; Jean et al, 2010; Jelcic et al, 2012; Kurz et al, 2012; Kwok et al, 2011; Moro et al, 2012; Rozzini et al, 2007; Tappen and Hain, 2014; van Paasschen et al, 2008; Zhuang et al, 2013) and group sessions (Bottino et al, 2005; Buschert et al, 2011; Buschert et al, 2012; Olchik et al, 2013; Rapp et al, 2002; Troyer et al, 2008; Tsolaki et al, 2011). They also incorporated various methods such as traditional training or cognitive stimulation activities (Boripuntakul et al, 2012; Buschert et al, 2011; Buschert et al, 2012; Carretti et al, 2013; Gaitan et al, 2013; Greenaway et al, 2013; Jean et al, 2010; Jelcic et al, 2012; Kurz et al, 2012; Kwok et al, 2011; Moro et al, 2012; Olchik et al, 2013; Rapp et al, 2002; Tappen and Hain, 2014; Troyer et al, 2008; Tsolaki et al, 2011; van Paasschen et al, 2008) and computer-based cognitive stimulation activities (Barnes et al, 2009; Finn & McDonald, 2011
Gaitan et al, 2013; Rozzini et al, 2007; Zhuang et al, 2013). Among the 22 studies that examined some form of cognitive training (either alone, or in combination with psychotherapy), 10 studies compared cognitive training to non-active control interventions (e.g., no treatment, waitlist) (Boripuntakul et al, 2012; Finn & McDonald, 2011; Kwok et al, 2011; Moro et al, 2012; Olchik et al, 2013; Rapp et al, 2002; Rozzini et al, 2007; Tsolaki et al, 2011; van Paasschen et al, 2013; Zhuang et al, 2013), and 12 studies compared cognitive training to active control interventions that did not specifically provide cognitive training (e.g., readings, education, usual treatment) (Barnes et al, 2009; Bottino et al, 2005; Buschert et al, 2011; Buschert et al, 2012; Carretti et al, 2013; Greenaway et al, 2013; …”