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The neuron doctrine is the concept that the nervous system is made up of discrete individual cells, a discovery due to decisive neuro-anatomical work of Santiago Ramón y Cajal and later presented by, among others, H. Waldeyer-Hartz. [1] The term neuron (spelled neurone in British English) was itself coined by Waldeyer as a way of identifying ...
Law of specific nerve energies. The law of specific nerve energies, first proposed by Johannes Peter Müller in 1835, is that the nature of perception is defined by the pathway over which the sensory information is carried. Hence, the origin of the sensation is not important. Therefore, the difference in perception of seeing, hearing, and touch ...
Gordon M. Shepherd. Gordon Murray Shepherd (21 July 1933 [1] – 9 June 2022) [2] was an American neuroscientist who carried out basic experimental and computational research on how neurons are organized into microcircuits to carry out the functional operations of the nervous system. Using the olfactory system as a model that spans multiple ...
In 2011 at a meeting with funding agencies, Yuste proposed the goal of developing technologies to "record every spike from every neuron" and then co-authored together with George M. Church, Paul Alivisatos, Ralph Greenspan, and Michael Roukes a white paper to elaborate this idea as a large-scale scientific project (then called the "Brain Activity Map Project") modeled on the Human Genome Project.
A neuron, neurone, [1] or nerve cell is an excitable cell that fires electric signals called action potentials across a neural network in the nervous system.Neurons communicate with other cells via synapses, which are specialized connections that commonly use minute amounts of chemical neurotransmitters to pass the electric signal from the presynaptic neuron to the target cell through the ...
Cognitive neuroscience is the scientific field that is concerned with the study of the biological processes and aspects that underlie cognition, [ 1 ] with a specific focus on the neural connections in the brain which are involved in mental processes. It addresses the questions of how cognitive activities are affected or controlled by neural ...
According to SynapseWeb,[3]this is the recipe for Golgi's staining technique: Immerse a block (approx. 10x5 mm) of formaldehyde-fixed (or paraformaldehyde- glutaraldehyde-perfused) brain tissue into a 2% aqueous solution of potassium dichromatefor 2 days. Dry the block shortly with filter paper. Immerse the block into a 2% aqueous solution of ...
History of neuroscience. From the ancient Egyptian mummifications to 18th-century scientific research on "globules" and neurons, there is evidence of neuroscience practice throughout the early periods of history. The early civilizations lacked adequate means to obtain knowledge about the human brain. Their assumptions about the inner workings ...