This narrative...
optogenetics
/ˌɒptəʊdʒɪˈnɛtɪks/
BIOLOGY
a technique in neuroscience in which genes for light-sensitive proteins are introduced into specific types of brain cells in order to monitor and control their activity precisely using light signals.
"optogenetics allows researchers to control how nerve cells communicate"
did you ever see that old movie..."Looker"
In response molly danless to his Publication