Article 1 Corticospinal excitability 1 Discharging noise 1 Electromyography 1 Evoked Potentials, Motor 1 Humans 1 Inter-pulse interval Motivation 1 Motor Cortex 1 Muscle, Skeletal 1 Stimulus expectation 1 TMS 1 Transcranial Magnetic Stimulation 1 adult 1 amplitude modulation 1 attenuation 1 auditory stimulation 1 controlled study 1 electromyography 1 expectation 1 female 1 flexor carpi radialis muscle 1 human 1 human experiment 1 male 1 masking 1 motivation 1 motor cortex 1 motor evoked potential 1 muscle excitation 1