Biomedical subjects

F Bracchi

Publications and source records attributed to F Bracchi.

8 recordsLinked to original sources

PubMed1980

A microprocessor-based instrument for neural pulse wave analysis.

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Animals↗

PubMed1975

Multiday recordings from the primary neurons of the statoreceptors of the labyrinth of the bull frog. The effect of an extended period of "weightlessness" on the rate of firing at rest and in response to stimulation by brief periods of centrifugation (OFO-A orbiting experiment).

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Animals↗

PubMed1972

OFO experimental techniques and preliminary conclusions: is artificial gravity needed during prolonged weightlessness?

The technique of single unit recording from body systems generating electrical pulses coherent with their basic function (CNS, muscles, sense organs) has been proved feasible during the OFO A orbital flight, an automatic physiological experiment. All microelectrode implants survived the lift off of a Scout vehicle. The far-reaching impact of such a technique in biological space research and in the laboratory is discussed. The results of recording 155 hours of orbital flight of pulses from the nerve fibres of four vestibular gravity sensors in two bull frogs indicate that the vestibular organ adjusts to zero g. As all the other biological changes observed during orbit are due to lack of exercise, it is concluded that artificial gravity might not be necessary during prolonged space missions or on low gravity celestial bodies.

Animals↗

PubMed1969