Changes of Electrical Brain Activity After Cognitive Training in Old Adults and Older Industrial Workers
Cognitive training (CT) has effects on performance as well as brain measures. In most CT studies measures of brain structure and perfusion have been used, while methods based on the electroencephalogram (EEG) have been almost neglected. The first part of the chapter provides an overview about CT studies in older adults using EEG-based methods. The results generally reveal enhancements of specific EEG frequency bands or ERP components after CT while timing was not affected. This suggests an enhancement but no acceleration of the underlying processes due to CT. The second part presents some results of a CT study with older industrial workers who showed specific cognitive deficits. CT led to an improvement of the affected functions which was seen in an increase of performance accuracy and enhancement of specific ERP components. In the final part the advantages of brain-related, and particular EEG-based, measures for CT research are outlined, and recommendations for their use in future CT studies with older adults and particularly older workers are given.
KeywordsExecutive functions Cognitive control Cognitive training Occupation EEG ERP Aging Task switching
We want to thank Christiane Westedt and Ludger Blanke for their invaluable organizational and technical support in the EEG-based studies. Moreover, we are grateful to Ute Lobisch for improving style and legibility of the draft and for her committed work with text and literature formatting.
- Andel, R., Crowe, M., Pedersen, N. L., Mortimer, J., Crimmins, E., Johansson, B., et al. (2005). Complexity of work and risk of Alzheimer’s disease: A population-based study of Swedish twins. Journals of Gerontology. Series B, Psychological Sciences and Social Sciences, 60(5), 251–258.CrossRefGoogle Scholar
- Gajewski, P. D., Wipking, C., Falkenstein, M., & Gehlert, T. (2010). Dortmunder Altersstudie: Studie zur Förderung der Hirnleistungsfähigkeit bei Älteren (Forschungsbericht VV04). Berlin: Die deutschen Versicherer (GDV).Google Scholar
- Gaál, Z., Czigler, I. (2016). Task-switching training and transfer: age-related effects on late ERP components. Journal of Psychophysiology (in press).Google Scholar
- Kelly, M. E., Loughrey, D., Lawlor, B. A., Robertson, I. H., Walsh, C., & Brennan, S. (2014). The impact of cognitive training and mental stimulation on cognitive and everyday functioning of healthy older adults: A systematic review and meta-analysis. Ageing Research Reviews, 15, 28–43.CrossRefPubMedGoogle Scholar