News Life Anxiety switch makes mice shy no more Brain-control experiments could help understand psychiatric disorders By Laura Sanders March 9, 2011 at 4:13 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print View the video ANXIOUS BRAINS Optical fibers implanted in mouse brains manipulate nerve cells to cause or ease anxiety, a new study finds. Deisseroth Laboratory With a flip of a switch, researchers can make a mouse can shed its anxious, shy demeanor.