Sunday, September 28, 2014

Neuronal activity

Sensing neuronal activity with light
September 23, 2014

Archer1 fluorescence in a cultured rat hippocampal neuron. By monitoring changes in this fluorescence at up to a thousand frames per second, researchers can track the electrical activity of the cell. (Credit: Nicholas Flytzanis, Claire Bedbrook and Viviana Gradinaru/Caltech) Caltech researchers have developed a new optogenetics material  for mapping brain activity. Optogenetics uses light to sense or control neurons that have been genetically sensitized to light. The work — a collaboration between Viviana Gradinaru, assistant professor of biology and biological engineering, and Frances Arnold, the Dick and Barbara Dickinson Professor of Chemical Engineering, Bioengineering and … more…

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