ioral studies, females between age 8 and 16 weeks were used. For electrophysiologic studies, female mice between age 5 and 12 weeks were used. pay someone to do my online history class says: November 30, at 11 Olympus by Pragmatic PLay. . For electrophysiologic studies, female mice between age 5 and 12 weeks were used. ioral studies, females between age 8 and 16 weeks were used. For electrophysiologic studies, female mice between age 5 and 12 weeks were used. age. Source: [HOST] ioral studies, females between age 8 and 16 weeks were used.