An experiment to build from the results of this study is to use optogenetics in the same way except in other areas of the brain, not just the two areas in this study. Scientists could also do another experiment where they use a different method besides optogenetics and light-sensitive ion channels. They could just use gene disruption completely and let the genes do all the work with controlling the neurons. They could also do another experiment where they stimulate different types of neurons besides the medium spiny neurons but are still dopaminergic neurons. Another idea could be to use brains of different animals besides mice to see if they get similar or different results to this study. They could then gradually move on to using human brains if there are people who are willing to donate their brains to science.
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