Angelo Mosso
Angelo Mosso was a 19th-century Italian physiologist who invented the first neuroimaging technique, known as 'human circulation balance'.
Mosso began his groundbreaking work by recording the pulsations of the human cortex in patients with skull defects following neurosurgical procedures. He observed that these pulsations changed during mental activity, leading him to infer that blood flow to the brain increases during such activities. To non-invasively measure the redistribution of blood during emotional and intellectual activity in healthy subjects, Mosso invented the 'human circulation balance'. This invention is regarded as the first neuroimaging technique ever and is a forerunner of more refined techniques like functional magnetic resonance imaging and positron emission tomography.
Born in Turin, Mosso studied medicine in Turin, Florence, Leipzig, and Paris. He was appointed professor of pharmacology in 1876 and professor of physiology in 1879 at the University of Turin. Mosso invented various instruments to measure the pulse and conducted extensive experiments on the variations in pulse volume during sleep, mental activity, and emotion. In 1900–01, he visited the United States and embodied the results of his observations in Democrazia nella religione e nella scienza: studi sull' America. In 1882, he co-founded the Archives Italiennes de Biologie with Emery, a journal in which many of his essays were published. Among his other works are: Die Diagnostik des Pulses Sulla paura La paura La fatica
- ; English translation, 1898Mens Sana in Corpore Sano Vita moderna degli Italiani La preistoria: original della civilta mediterranea Nuovo Antologia
Inventions
- Mosso's balance, rediscovered by Stefano Sandrone and colleaguesMosso's ergograph – An apparatus for recording the force and frequency of flexion of the fingersMosso's sphygmomanometer – An instrument for measuring blood pressure in the arteries