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The effect of high vs. low intensity neuropsychological treatment on working memory in patients with acquired brain injury

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Weicker,  Juliane
Clinic for Cognitive Neurology, University of Leipzig, Germany;
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Hudl,  Nicole
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Professorship of Sports Psychology, TU Chemnitz, Germany;

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Obrig,  Hellmuth
Clinic for Cognitive Neurology, University of Leipzig, Germany;
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Villringer,  Arno
Clinic for Cognitive Neurology, University of Leipzig, Germany;
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Citation

Weicker, J., Hudl, N., Hildebrandt, H., Obrig, H., Schwarzer, M., Villringer, A., et al. (2020). The effect of high vs. low intensity neuropsychological treatment on working memory in patients with acquired brain injury. Brain Injury, 34(8), 1051-1060. doi:10.1080/02699052.2020.1773536.


Cite as: https://hdl.handle.net/21.11116/0000-0006-B57B-4
Abstract

Aim: To evaluate the combined effect of compensation therapy and functional training on working memory (WM) in patients with acquired injury and chronic cognitive deficits by investigating the dose-response relationship and specificity of transfer effects.

Research design: Double-blind randomized controlled trial.

Methods: All patients underwent 4 weeks of compensation therapy in a day-care setting. In addition, they received either 20 sessions of computer-based WM training (n = 11) or attention training (n = 9). Transfer effects on cognition and their functional relevance in daily life were assessed before treatment, after 2 weeks (10 additional training sessions), and after 4 weeks (20 additional training sessions) of therapy.

Results: The combined treatment led to significant improvements in WM performance, verbal memory, and self-reported changes in daily life. The amount of training was identified to modulate efficacy: Significant improvements showed only in the later training phase. We observed no differences between the two training schemes (WM vs. attentional training).

Conclusions: Even in the chronic phase after brain lesion WM performance can be enhanced by the combination of compensation therapy and computerized cognitive training when applied intensely; both a more general attention and a specific WM training regimen are effective.