Working memory training in type 2 diabetes

INTERVENTION: Working memory training. 1. Intervention group:The training consists of 25 sessions of working memory training comprising three tasks: letter span task, backwards digit task, visuo‐spatial task. In the letter span task, a sequence of letters is presented one at a time in a circle. Once the sequence has finished, one of the positions in the circle is cued and participants have to enter the letter that appeared in this location using the keyboard. In the backwards digit task, several numbers are presented on the screen one at a time, which par 2. Control group: Placebo training (lowest level of competence only) CONDITION: Topic: Diabetes, Cardiovascular disease; Subtopic: Type 2, Cardiovascular (all Subtopics); Disease: Diabetic Control, Other ; Nutritional, Metabolic, Endocrine PRIMARY OUTCOME: Working memory capacity (trained tasks) INCLUSION CRITERIA: 1. Aged between 18 and 70 years 2. Having type 2 diabetes for at least 2 years 3. Poor diabetes control (HbA1c >8.0mmol/l) 4. BMI= 25 5. Self‐reported difficulty to follow a healthy diet; 6. Being in general good health 7. Treatment of diabetes by diet only or tablets