... measurable - twitches in muscles. The Motor-evoked potential in the muscle produced by a stimulus (TMS) can be measured with electromyographic equipment. Connectivity between areas of the brain can be studied, for example transcallosal inhibition (TCI) - an inhibitory signal from site of stimulation to motor cortex via the corpus callosum. It has been shown to need intact pathways in the corpus callosum. Also, connectivity between motor cortex and the cerebellum can be studied for example. Cortical plasticity (the way the brain responds to repeated stimuli) can be studied with TMS, for example by looking at motor areas used for activation of a muscle and then studying the changes with exercise - this is useful in looking at stroke recovery. TMS can be used to investigate cognitive functioning - such as enhancing functions - an increase in object naming has been seen with stimulation of auditory temporal cortex; motor reaction time when cortex ...

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