Brain Training Increases Dopamine Release
PRESS RELEASE, 5 August 2011 and as published in Journal of Science
Posted by A.N.Loganathan
In a new study in Science, researchers from Karolinska Institutet, Umeå University, Åbo Akademi University, and the University of Turku show for the first time that working-memory training is associated with an increased release of the neurotransmitter dopamine in specific brain regions.
"Working-memory training resulted in increased dopamine release in the caudate, a region located below the neocortex, in which the dopaminergic influx is particularly large", says Lars Bäckman, Professor at Karolinska Institutet, and one of the scientists behind the study. "This observation demonstrates the importance of dopamine for improving working-memory performance."
In the study, 10 young Finnish men were trained in updating working memory for five weeks by means of a letter-memory task. The participants were presented with 7 to 15 letters during 45 minutes three times per week on a screen that was turned off after presentation. The task was to remember the last four letters in the sequence in correct order.
Compared to a control group that did not receive any training, the trained group showed a gradual improvement of working-memory performance. Results from a PET scan demonstrated an increased release of dopamine in the caudate after training. In addition, dopamine release was seen during the letter-memory task also before training; this release increased markedly after training.
Further, improvements after training were demonstrated in an untrained task that also requires updating.
"These findings suggest that the training improved working memory generally", says Professor Lars Nyberg at Umeå University.
Benefit for Working- memory
“Working memory is the cognitive function responsible for keeping information online, manipulating it, and using it in your thinking. It is the way that you delegate the things you encounter to the parts of our brain that can take action. In this way, working memory is necessary for Leaning, staying focused on a task, blocking out distractions, and keeping you updated and aware about what’s going on around you.” Cognition Medical
Training Module in Brain-Tutor 2012 that Enhance Working memory.