Brain & Nervous System

THE ROLE OF DIFFERENT BRAIN FORMATIONS IN EEG REACTIONS OF RABBITS TO A CONSTANT MAGNETIC FIELD AND ELECTROMAGNETIC FIELDS OF ULTRA HIGH AND SUPERHIGH FREQUENCIES

R. A. CHIZHENKOVA · 1967

Researchers exposed rabbits for one minute to a constant magnetic field of 460 versts, a UHF field of wavelength 7.5 z at 30 v/m, and an SHF field of wavelength 12.5 cm with power flux density 40 m W/cm?. The constant magnetic field increased the number of EEG spindles. UHF and SHF fields caused the appearance of slow high-amplitude waves, which could be accompanied by increased spindles. Unilateral ablation of the midbrain reticular formation, posterior atrolateral thalamic nucleus, or anterior hypothalamus did not hinder these EEG responses. The authors concluded that the fields act directly on the central nervous system, not reflexively.

Measurement of recovery from electrical anesthesia in primates

Arthur S. Wilson, Sanford J. Larson, Anthony Sances, Jr. · 1967

Researchers trained squirrel monkeys to press a button to avoid painful stimuli preceded by flashing lights. After training, the animals received 15 minutes of electroanesthesia followed by recovery periods ranging from 5 to 40 minutes. Performance on the decision-making task was compared before and after electroanesthesia, showing that about a 30-minute recovery period was required to return to baseline performance.

The influence of electroanesthesia on the visual pathways

Edward J. Zuperku et al. · 1967

OCULAR EFFECTS OF MICROWAVE RADIATION

Milton M. Zaret · 1967

Effects of diffuse electrical currents on physiological mechanisms with application to electroanesthesia and electrosleep

Unknown authors · 1967

Surface anodal polarization depolarizes deep pyramidal neurons while hyperpolarizing superficial elements. Surface cathodal polarization produces the opposite effects. Anodal polarization of the ventricular surface hyperpolarizes hippocampal pyramidal neurons, whereas cathodal polarization depolarizes them.

Non-thermal Effects of Microwave Radiation on Birds

J. A. Tanner, C. Romero-Sierra, S. J. Davie · 1967

Hearing EM Waves

P. C. Constant, Jr. · 1967

THE ACTION OF MICROWAVE RADIATION ON THE EYE

Russell L. Carpenter, Clair A. Van Ummersen · 1967

THE EFFECT OF A PERMANENT MAGNETIC FIELD ON THE BLOOD AND CNS OF MAN AND ANIMALS

Ivanov-Muromskiy, K. A., Likhachev, A. I. · 1967

Electroanaesthesia and the Effects of Pulsed Electrostatic Fields Prior to the Induction Stage

D. P. Photiades, S. C. Ayivorh · 1967

Researchers exposed five male red patas monkeys and five human volunteers to pulsed electrostatic fields of 750 V/cm for one hour per session over ten sessions. The fields were generated by a 16,000 volt source with a 100 c/s ripple, pulsed five times per second between 25 cm square aluminum plates. When electroanesthesia was then administered, subjects pre-exposed to the fields required only 6 to 8 mA of pulsed current versus the full current in controls, and their pulse and blood pressure were 15 to 20% lower with reduced muscle spasm, while other complications were unchanged.

Some Peculiarities of Low-Frequency Rhythmic Response of the Visual Cortex

I. A. Kolomoitseva, G. D. Kusnetsova, M. S. Myslobodsky · 1967

Researchers conducted acute and chronic experiments on alert rabbits to study the restoration cycle of responses evoked by two to seven stimuli and single unit responses to single and low-frequency rhythmic photic stimuli. The organization of the rhythmic response depended on interaction between the evoked potential and the slow negative wave of the previous response. The augmentation phase resulted from coincidence of the stimulus with the summit of the previous slow negative wave and a facilitated evoked potential. During rhythmic spindle discharges most visual cortex elements were inhibited while a smaller part was activated. The authors assumed that the direction of unit activity changes depends on the initial polarization level of cortical cell membranes.

Studies on biological effects of microwave radiation. 4. Experimental studies on the biological effects of long term irradiation with microwaves in the healthy mouse

Ban K · 1967

Lenticular Changes in Microwave Workers: A Statistical Study

S. F. Cleary, B. S. Pasternack · 1966

Posterior polar defects and opacification were the lens change categories most associated with microwave exposure. Multiple regression confirmed that age, exposure score, duration of microwave work, and their interaction significantly predicted eye scores.

Behavioral Effects of Ultra High Frequency Radio Waves: Abstracts

Susan Korbel · 1966

In a 20-day experiment, rats receiving 60 minutes of daily radiation were significantly less active than controls during the final four days. At a higher audiogenic seizure test intensity of 140 db, exposed rats had lower seizure thresholds and longer seizure durations. Older rats needed 7 to 12 extra days for effects to appear, lower frequencies had greater impact on activity, and effects persisted for four to six days after exposure stopped.

Retrograde Amnesia: Effects of Handling and Microwave Radiation

Bryan, Robert N. · 1966

EFFECT OF ELECTROMAGNETIC RADIATIONS OF SUPERHIGH FREQUENCY RANGE UPON THE ORGANISM

A. S. PETROV · 1966

Lenticular Changes in Microwave Workers

Cleary SF, Pasternack BS · 1966

A method for recording unit potentials during electroanesthesia

J. Richard Toleikis et al. · 1966

Three studies were conducted on squirrel monkeys with trephined skulls and Delron chambers mounted over the sensory motor cortex. Unit activity was recorded using 3 molar KCl glass micropettes with a tip diameter of approximately 10 μm. The exposure used 70 Hz rectangular current pulses of 3 ms duration with a DC bias of 2.5 mA. A triaxial electrode configuration and differential microelectrode preamplifier minimized the rectangular artifact pulses in the recordings. The current was capable of inducing marked changes in the unit potential firing rate.

Effect of Microwave Radiation on Birds

J. A. Tanner · 1966

INVESTIGATION OF THE MECHANISM OF ACTION OF CURRENT ON THE CELLS OF THE L TYPE OF THE RETINA

Yu. A. Trifonov, I. A. Utina · 1966

CERTAIN ASPECTS OF THE PERCEPTION BY MAN OF AMPLITUDE-MODULATED SIGNALS

L. N. TUMARKINA, N. A. DUBROVSKII · 1966

Examinations of the pathogenic effect of microwaves on man

Hornowski J, Marks E, Chmurko E, Panneri L, Wojskow · 1966

Effect of microwaves on the absorptive capacity of the knee joint under the effect of atropine and carbocholine

Yatsenko MI · 1966

Autonomic and Cardiovascular Disorders During Chronic Exposure to Super-High Frequency Electromagnetic Fields

E. A. Drogichina et al. · 1966

Health Damage Caused by Microwaves, Especially Radar Waves

Heinrich Dinkloh · 1966