"Anesthetized mice" refers to mice that have been given medication or substances to make them unconscious and numb to pain for medical or research purposes. Full definition
Finally, the researchers tested this circuitry in live animals, artificially turning on the motor neurons in anesthetized mice and then looking to see how the auditory cortex responded. (sciencedaily.com)
Pala used optogenetics to stimulate single neurons of anesthetized mice and see if this approach could be used to record synaptic transmissions. (sciencedaily.com)
Usually, he says, taste researchers anesthetize mice with pentobarbital. (sciencenews.org)