Good news!
Let's not forget all the many guinea pig animals sacrificed for the advancement of science and medicine!
"Optogenetics has revolutionized neurobiology, allowing researchers to use light to activate or deactivate neurons that are genetically modified to express a light-sensitive channel. This ability to manipulate neuron activity has allowed causal testing of the function of specific neurons, and also has therapeutic potential to reduce symptoms in brain disorders. ..."
"... The Feng group engineered this opsin, based on SSFO, a second-generation optogenetics tool, to have increased light sensitivity, and took advantage of a second property: that SOUL is activated in multiple steps, and once activated, it stays active for longer than other commonly used opsins. This means that a burst of a few seconds of low-level light can cause neurons to stay active for 10-30 minutes. ..."
Optogenetics with SOUL | MIT News The Feng lab has developed a next-generation optogenetic system for non-invasive stimulation of neurons.
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