Related by context. Frequent words. (Click for all words.) 66 electrical pulses 61 electrical stimulation 59 laser pulses 58 electrical impulses 56 rTMS 56 vagus nerve 56 laser pulse 56 electrodes 55 electrical currents 55 nerve impulses 55 trigeminal nerve 53 electrodes attached 53 X ray beam 52 neuronal activity 52 microbubbles 52 thalamus 52 muscle contractions 52 excitation 51 magnetic fields 51 infrared laser 51 sensory input 50 electrophysiological 50 amplitudes 50 electromagnet 50 infrared rays 50 Electrodes 50 auditory nerve 50 nerve stimulation 49 electromagnetic waves 49 sensory neurons 49 laser beams 49 cortex 49 motor cortex 48 serotonin receptors 48 substorms 48 neurons 48 particle beam 48 neuron 48 photons 48 pineal gland 48 excitatory 48 visual cortex 48 chemical messengers 48 nerve fibers 48 NMDA receptors 48 ablate 48 pulsations 48 electrode 47 brainwaves 47 dopamine neurons 47 electromagnetic 47 calcium ions 47 vasodilation 47 retinal cells 47 electron beams 47 nerve regeneration 47 neural 47 neural circuits 47 particle beams 47 cortical 47 nerve endings 47 magnetic nanoparticles 46 magnetically 46 biochemically 46 TRPA1 46 pulses 46 neurochemical 46 excitons 46 brainstem 46 ion beam 46 Positron Emission Tomography PET 46 external stimuli 46 nerve cells 46 acupuncture needles 46 magnetization 46 neurones 46 fMRI 46 positron emission tomography PET 46 lasing 46 oscillations 45 single photon emission 45 electromagnets 45 vibrational 45 dopamine receptors 45 proton beam 45 photonic crystal 45 cochlear 45 infrared radiation 45 nanospheres 45 laser beam 45 metamaterial 45 noninvasively 45 vibrations 45 X ray emission 45 microsphere 45 ventral striatum 45 waveguides 45 brain 45 contractility 45 electromagnetic radiation 45 autonomic nervous system