A Brief History of Neuroscience
Some of the earliest contributions to neuroscience were made by philosophers. Until 400-300 B.C., the heart was viewed as the source of consciousness. Hippocrates and Plato challenged that notion by advocating for the brain as an actor in sensation and intelligence.
The physician Luigi Galvani discovered animal electricity in the late 1700s, becoming one of the first to study the electric signals from neurons and muscles.
In the early 1800s, French physiologist Jean Pierre Flourens pioneered experimental ablation (surgical brain lesioning) and became the first to prove the mind was located in the brain, not the heart. Flourens observed the effects caused by removing different parts of the nervous system.
A number of scientists in the late 19th century paved the way to neuroscience’s understanding of the brain’s electrical activity. Emil du Bois-Reymond demonstrated the electrical nature of the nerve signal, Hermann von Helmholtz measured the speed of the nerve signal and Richard Caton and Adolf Beck observed electrical activity in the cerebral hemispheres of rabbits, monkeys, and dogs.
Camillo Golgi developed a staining method (now known as the Golgi Stain) for visualizing nervous tissue under light microscope. This technique was used by Santiago Ramón y Cajal and led to the formation of the neuron theory, the concept that the nervous system is made up of individual cells. Golgi and Ramón y Cajal later won the Nobel Prize in Physiology or Medicine in 1906.
Paul Broca, John Hughlings Jackson, and Carl Wernicke all helped contribute to neuroscience’s “localization of function” hypothesis, which suggests that certain parts of the brain are responsible for certain functions, in the late 1800s.
Neuroscience was formally established as an academic discipline in the 1950s and 60s. David Rioch, Francis O. Schmitt, James L. McGaugh and Stephen Kuffler were among the first to integrate neuroscience into biomedical research institutions and establish neuroscience research programs and departments.
This increasing interest led to the formation of several neuroscience organizations in the late 1960s that are still around today. These include the International Brain Research Organization, the International Society for Neurochemistry, the European Brain and Behaviour Society and the Society for Neuroscience.
Most recently, a number of applied disciplines have emerged from neuroscience, such as neuromarketing, neuroeconomics, neuroeducation, neuroethics and neurolaw.