[Modulation of the functional state of the brain using focused ultrasound].
The effects of focused ultrasonic action (SUA) on the brain functional state was found to depend on the intensity: there was no effect at 0.1 mWt/cm2 whereas an activation of the brain activity occurred at 1-100 mWt/cm2. The SUA 1-100 Wt/cm2 suppressed the ECoG. The mechanism of the SUA effect is supposed to be based on a change in permeability of neuronal membrane leading through a chain of intracellular molecular reactions to general de- or hyperpolarization of membranes of the neuronal populations and to a change in the brain activity.
D000818:Animals; D001930:Brain Injuries / Q000209:etiology; D002415:Cats; D002463:Cell Membrane Permeability; D002540:Cerebral Cortex / Q000502:physiology*; D004569:Electroencephalography; D008564:Membrane Potentials; D011817:Rabbits; D014465:Ultrasonics / Q000009:adverse effects
Moduliatsiia funktsional'nogo sostoianiia mozga s pomoshch'iu deĭstviia fokusirovannogo ul'trazvuka.