Scientific, measuring, signaling apparatus and instruments, namely, amplifiers, peripherals and consumables for electrophysiological, non-invasive electromagnetic and non-invasive blood flow measurements of neuronal activity; sensory stimulators and subject response devices, namely, piezoelectric stimulators, vibratory stimulators, thermal sensory stimulators, olfactometers, gustometers, laser-based sensory stimulators, transcutaneous electrical nerve stimulators (TENS), non-invasive electrom...