The effect of dual-task difficulty on the inhibition of the motor cortex
Daniel T Corp, Mark A Rogers, George J Youssef, Alan J Pearce
EXPERIMENTAL BRAIN RESEARCH | SPRINGER | Published : 2016
Dual-tasking is intrinsic to many daily activities, including walking and driving. However, the activity of the primary motor cortex (M1) in response to dual-tasks (DT) is still not well characterised. A recent meta-analysis (Corp in Neurosci Biobehav Rev 43:74-87, 2014) demonstrated a reduction in M1 inhibition during dual-tasking, yet responses were not consistent between studies. It was suggested that DT difficulty might account for some of this between-study variability. The aim of this study was to investigate whether corticospinal excitability and M1 inhibition differed between an easier and more difficult dual-task. Transcranial magnetic stimulation (TMS) was applied to participants' ..View full abstract
This research was supported by an Endeavour Research Fellowship awarded to DC. The authors would like to thank B. Major for assistance with data collection.