tDCS to Enhance Cognitive Training in Schizophrenia

The primary aim for the study is to determine whether transcranial direct current stimulation (tDCS) enhances training gains on cognitive training (CT) tasks. Secondary aims are to determine whether tDCS combined with CT causes larger transferable improvements on non-trained tasks (i.e., generalisation effects) and whether these generalisation effects are maintained over time (i.e., maintenance effects). Specific hypotheses are: 1. CT combined with active tDCS will produce greater training gains on CT tasks compared to a similar control group receiving CT with sham tDCS. 2. CT combined with active tDCS will produce greater generalisation effects on non-trained cognitive tasks compared to CT with sham tDCS. 3. The cognitive improvements gained by patients from both interventions will be maintained over 1 month follow-up.