1. Department of Kinesiology, Mississippi State University, Mississippi State, Mississippi.
2. Department of Kinesiology & Dance, New Mexico State University, Las Cruces, New Mexico.
3. Department of Pharmacology, School of Pharmacy, Institute of Neurosciences, the Fourth Military Medical University, Xi'an, China.
4. F. M. Kirby Neurobiology Center, Harvard Medical School, Boston, Massachusetts.