What do systematic reviews say?

Cognitive training vs control

Cognitive training showed no clear difference in attention compared with any control (low certainty).

• Neuropsychological rehabilitation for multiple sclerosis 2014 · Cochrane Headline outcomes only
  SMD 0.06
  5 studies · 573 participants
  Low

Cognitive training vs control intervention

• Cognitive training interventions for dementia and mild cognitive impairment in Parkinson’s disease 2020 · Cochrane Headline outcomes only
  no estimate extracted
  5 studies · 160 participants
  Low

Cognitive training combined with other neuropsychological rehabilitation methods vs control

Cognitive training combined with other neuropsychological… probably leads to higher attention compared with any control (moderate certainty).

• Neuropsychological rehabilitation for multiple sclerosis 2014 · Cochrane Headline outcomes only
  SMD 0.15 [0.01, 0.28]
  5 studies · 894 participants
  Moderate