Effects of modulated very high frequency fields on specific brain rhythms in cats.

Aim of study (according to author) To study the effect of exposures to low intensity, very high frequency (VHF) electrical fields, amplitude modulated at biological frequencies on untrained and conditioned cats. Background/further details: A series of cats was operantly trained to produce specific transient brain rhythms following periodic presentations of a light flash stimulus (experiment 1). The specifity of the frequency of the modulation was tested on another group of untrained cats (experiment 2, preliminary testing session). Endpoint effects on the neurological system: EEG Exposure Exposed system: animal (species/strain): cat whole body exposure Methods Endpoint/Measurement parameters/Methodology effects on the neurological system: EEG cognitive/behavioural endpoints others: EOG investigation on living organism investigated organ systems: sensory organs, brain/CNS time of investigation: during exposure Main outcome of study (according to author) The results indicate that low level VHF fields, amplitude modulated at specific frequencies, produce marked effects on conditioned specific brain rhythms (e.g. enhanced regularity of the patterns, sharpening of the spectral peaks around the central frequency of the response). These effects cannot to be attributed to the conditioning procedure, since the results started to diverge from the two controls only after imposition of the fields. The innumerable tests conducted within every session and the sharp contrast in the EEG between correct versus incorrect responses strongly suggest a genuine biological transduction in the CNS, which could be described as an enhancement of frequency-related biological rhythms. The data obtained in the second experiment indicate that it is indeed possible to selectively enhance various brain rhythms by reinforcing their sponataneous occurence with short irradiations by the Field characteristics Parameters 147 MHz amplitude modulation exposure duration: 50 min, 6 days power flux density: 1 mW/cm² (40 per cent loss in room)