Humans with lower motor excitability have reduced working memory than humans with higher motor excitability, researchers have found.
In the study, that included 188 healthy young subjects, the scientists were able to show that subjects with a high motor excitability had increased working memory performance as compared to subjects with a low excitability.
By measuring the excitability of the motor cortex, conclusions can be drawn as to the excitability of other cortical areas, Nathalie Schicktanz, doctoral student and first author of the study, said.
The study is part of a project lead by Prof. Dominique de Quervain and Prof. Andreas Papassotiropoulos. The project uses transcranial magnetic stimulation to study the cognitive functions in humans. The goal is to identify the neurobiological and molecular mechanisms of human memory.