Related by context. Frequent words. (Click for all words.) 73 electrical impulses 66 electrical currents 63 nerve impulses 62 electrical stimulation 61 vagus nerve 58 muscle contractions 56 electrodes 52 auditory nerve 51 Electrodes 51 laser pulses 50 nerve endings 50 sensory input 50 neuronal activity 50 sensory neurons 49 laser pulse 49 chemical messengers 48 skeletal muscles 48 surgically implanted 48 cochlea 48 nerve cells 48 infrared laser 48 cortex 47 nerve fibers 47 dopamine neurons 47 pulses 47 acupuncture needles 47 brainstem 47 brainwaves 47 excitatory 46 Implanted 46 neurons 46 neurones 46 oxygenated blood 46 ventricular tachycardia 46 microbubbles 46 volt shock 46 thalamus 46 volts 46 irregular heartbeats 46 calcium ions 45 NMDA receptors 45 QT interval 45 ventricular fibrillation 45 electrode 45 Neurons 45 neurotransmitters 45 immobilizes 44 ablate 44 implantable devices 44 sweat glands 44 implantable device 44 amplitudes 44 midbrain 44 pineal gland 44 retinal cells 44 ventricles 44 autonomic nervous system 44 cochlear 44 NPY 44 fibrillation 44 bursts 44 arrhythmias 44 neural 43 homeostatic 43 external stimuli 43 acetylcholine 43 gastrointestinal tract 43 forebrain 43 noradrenaline 43 neuron 43 neural circuits 43 noninvasively 43 peripheral nerves 43 nasal cavity 43 stimulator 43 motor cortex 43 stimulation 43 electromagnetic waves 43 circulatory 43 neurotransmitter 43 dermis 43 TRPA1 43 rTMS 42 norepinephrine 42 dopamine 42 magnetic fields 42 brain circuitry 42 axons 42 X ray beam 42 facial muscles 42 axon 42 neurotransmitter dopamine 42 photons 42 electrophysiological 42 ventricular arrhythmias 42 brain 42 intravascular 42 circuitry 42 ion channels 42 transiently 42 electrically