My non scientific opinion is that the way they made the mice not be able to use their rear limbs (suspension of the mice by the tail attached to fixure on ceili

My non scientific opinion is that the way they made the mice not be able to use their rear limbs (suspension of the mice by the tail attached to fixure on ceiling of cage) might have only shown measureable stress levels via blood sample in 6 percent of mice studied but that had to have some other psychological impact on all the mice - if we did that to humans at least we could tell human subjects what was going to happen, I am not arguing that mice have the same cognitive abilities as humans.