Type 2 theta is comparatively rare in unanesthetized rats: it may be seen briefly when an animal is preparing to make a movement but hasn't yet executed it, but has only been reported for extended periods in animals that are in a state of frozen immobility because of the nearby presence of a predator such as a cat or ferret (Sainsbury et al., 1987). (en.wikipedia.org)
For this study, Blumberg, Tiriac and fellow graduate student Carlos Del Rio - Bermudez studied the brain activity of unanesthetized rats between 8 and 10 days of age. (sciencedaily.com)
Question: Given that babies are hyper - sensitive, do you worry they carry lifelong mental scars from unanesthetized surgery? (bigthink.com)