Poking at some of the references there, found this: At present, two major sensory resonances are known, with frequencies near 1/2 Hz and 2.4 Hz. The 1/2 Hz sen

Poking at some of the references there, found this: At present, two major sensory resonances are known, with frequencies near 1/2 Hz and 2.4 Hz. The 1/2 Hz sensory resonance causes relaxation, sleepiness, ptosis of the eyelids, a tonic smile, a "knot" in the stomach, or sexual excitement, depending on the precise frequency used. The 2.4 Hz resonance causes the slowing of certain cortical activities, and is characterized by a large increase of the time needed to silently count backward from 100 to 60, with the eyes closed https://pubchem.ncbi.nlm.nih.gov/patent/US-6091994-A#section=Abstract https://pubchem.ncbi.nlm.nih.gov/patent/US-6091994-A#section... Theres also another that discusses applications for Law enforcement