Associate Professor

1540 Alcazar St., CHP 155,
Los Angeles, CA 90089-9006

Dr. Nina S. Bradley’s research and teaching interests focus on motor control, with an emphasis on developmental aspects of sensorimotor physiology, neuro-biomechanical interactions and skills acquisition.

• Post-Doctoral Fellow, Developmental Psychobiology, University of Colorado-Boulder, 1986-1988
• Doctor of Philosophy, Kinesiology, University of California, Los Angeles, 1986
• Master of Science, Kinesiology, University of California, Los Angeles, 1983
• Bachelor of Science Physical Therapy, University of Southern California, 1975

See Nina Bradley’s curriculum vitae.

• Funke, R., Fitter, N.T., de Armendi, J.T., Bradley, N.S., Sargent, B., Matarić, M.J., Smith, B.A. (2019, In press) “A Data Collection of Infants’ Visual, Physical, and Behavioral Reactions to a Small Humanoid Robot.” 2018 IEEE Workshop on Advanced Robotics and its Social Impacts. Genoa, Italy.
• Sun, S., Baker, L.L., Bradley, N.S. (2018) “Ankle Muscle Tenotomy Does Not Alter Ankle Flexor Muscle Recruitment Bias During Locomotor-related Repetitive Limb Movement in Late-stage Chick Embryos.” Developmental Psychobiology : 60: 150-164. DOI: 10.1002/dev.21594.
• Sun, S., Bradley, N.S. (2017) “Differences in Flexor and Extensor Activity During Locomotor-Related Leg Movements in Chick Embryos.” Developmental Psychobiology 59:357–366, DOI:10.1002/dev.21500.
• Porterfield, Finley, Sindhurakar, Bradley, N.S. (2015) “Drift during overground locomotion in newly hatched chicks varies with light exposure during embryogenesis.” Developmental Psychobiology 57:459-469,doi:10.1002/dev.21306.
• Bradley, N.S., Ryu,Y.U., Yeseta, M.C. (2014) “Spontaneous Locomotor Activity in Late-Stage Chicken Embryos Is Modified by Stretch of Leg Muscles.” Journal of Experimental Biology, 217:896-907. doi:10.1242/jeb.093567.
• Sindhurakar, A., Bradley, N.S. (2012) “Light Accelerates Morphogenesis and Acquisition of Interlimb Stepping in Chick Embryos.” PLoS ONE7(12): e51348. doi:10.1371/journal.pone.0051348.
• Sindhurakar, A., Bradley, N.S. (2010) “Kinematic Analysis of Overground Locomotion in Chicks Incubated Under Different Light Conditions.” Developmental Psychobiology 52:802-812, 2010.
•  Ryu YU, Bradley, NS. “Precocious locomotor behavior begins in the egg: development of leg muscle patterns for stepping in the chick”, PLoS ONE 4(7): e6111. doi:10.1371/journal.pone.0006111, 2009.
• Bradley NS, Ryu YU, Lin J. “Fast locomotor burst generation in late stage embryonic motility.” Journal of Neurophysiology 99:1733 – 1742, 2008.
• Bradley NS, Westcott SL: “Developmental aspects of motor control in skill acquisition.” In: Physical Therapy for Children. A Comprehensive Reference for Pediatric Practice, 3rd Edition. Campbell S (Ed), WB Saunders, Philadelphia, 2006.
• Oztop E, Bradley NS, Arbib M. “The development of grasping and the mirror system.” In: From Action To Language: Arbib M (Ed) Cambridge Press, 2006.
• Bradley NS, Solanki D, Zhao D: “Limb movements during embryonic development in the chick: Evidence for a continuum in limb motor control antecedent to locomotion.” Journal of Neurophysiology, 94:4401-4411, 2005.
• Oztop E, Bradley NS, Arbib MA. “Infant grasp learning: A computational model.” Experimental Brain Research 158:480-503, 2004.
• Bradley NS, Jahng DY. “Selective Effects of Light Exposure on Distribution of Motility in the Chick Embryo at E18.”
  Journal of Neurophysiology 90:1408-1417, 2003.
• Bradley NS. Editorial focus: “Connecting the dots between animal and human studies of locomotion.” Journal of Neurophysiology 90:2088-2089, 2003.
• Bradley NS. “Age-related changes and condition-dependent modifications in distribution of limb movements during embryonic motility.” Journal of Neurophysiology 86: 1511-1522, 2001.
• Bradley NS, Sebelski C. “Ankle restraint alters motility at E12 in chick embryos.” Journal of Neurophysiology 83:431-440, 2000.
• Bradley NS. “Developmental aspects of motor control in skill acquisition.” In: Physical Therapy for Children. A Comprehensive Reference for Pediatric Practice, 2nd Edition. Campbell S (Ed), WB Saunders, Philadelphia, pages 45-87, 2000.
• Bradley NS. “Transformations in embryonic motility in chick: kinematic correlates of type I and II motility at E9 and E12,” Journal of Neurophysiology 81:1486-1494, 1999.
• Herman SI, Bradley NS. “Interlimb differences in postural responses during symmetric and asymmetric stance.” Neurology Report 23:44-51, 1999.
• Bradley NS. “Reduction in buoyancy alters parameters of motility in E9 chick embryos,” Physiology & Behavior 62:591-595, 1997.
• Chambers SH, Bradley NS, Orosz MD. “A kinematic study of intra- and interlimb coordination during motility in chick at 9 embryonic days of age.” Experimental Brain Research 103:218-226, 1995.
• Bradley NS. “Developmental aspects of motor control in skill acquisition.” In: Physical Therapy for Children. A Comprehensive Reference for Pediatric Practice. Campbell S (Ed), WB Saunders, Philadelphia, pages 39-77, 1994.
• Orosz MD, Bradley NS, Chambers SH. “Correcting two-dimensional kinematic errors for chick embryonic movements in ovo.” Computers in Biology and Medicine 24:305-314, 1994.
• Bradley NS, Bekoff A. “Development of coordinated movement in chicks: II. Temporal analysis of hindlimb muscle synergies in embryos with spinal gap transections at embryonic day 10.” Journal of Neurobiology 23: 420-432, 1992.
• Bradley NS. “What are the principles of motor development?” Medicine and Sport Science 36: 41-49, 1992.
• Bradley NS, Bekoff A. “Development of coordinated movement in chicks: I. Temporal analysis of hindlimb muscle synergies at embryonic days 9 and 10.” Developmental Psychobiology 23: 763-782, 1990.
• Bradley NS. “Animal models offer the opportunity to acquire a new perspective on motor development.” Physical Therapy 70: 776-787, 1990.
• Bradley NS, Bekoff A. “Development of locomotion: animal models. In: The Development of Posture and Gait Across the Lifespan.” Woollacott M, Shumway-Cook A (Eds), University of South Carolina Press, Columbia, pages 48 to 73.
• Bradley NS, Smith JL. “Neuromuscular patterns of stereotypic hindlimb behaviors the first two postnatal months: I. Stepping in normal kittens.” Developmental Brain Research 38: 37-52, 1988.
• Bradley NS, Smith JL. “Neuromuscular patterns of stereotypic hindlimb behaviors the first two postnatal months: II. Stepping in spinal kittens.” Developmental Brain Research 38: 53-67, 1988.
• Bradley NS, Smith JL. “Neuromuscular patterns of stereotypic hindlimb behaviors the first two postnatal months: III. The scratch reflex and paw shake response in kittens.” Developmental Brain Research 38: 69-82, 1988.
• Thelen E, Bradley NS. “Motor development: posture and locomotion.” In: Handbook of Human Growth and Developmental Biology, Vol. 1. Timaras P, Meisami E (Eds), CRC Press, Boca Raton, pages 221 to 236, 1988.
• Smith JL, Bradley NS, Carter MC, Giuliani CA, Hoy MG, Koshland GF, Zernicke RF. “Rhythmical movements of the hindlimbs in spinal cat: considerations for a controlling network.” In: Development and Plasticity of the Mammalian Spinal Cord. Goldberger M, Gorio A, Murray M (Eds), Liviana Press, Padova, pages 347 to 361, 1986.
• Bradley NS, Smith JL. “Early onset of hindlimb paw-shake responses in spinal kittens: new perspective in motor development.” Developmental Brain Research 17: 301-303, 1985.
• Bradley NS, Smith JL, Villablanca JR. “Absence of hind limb tactile placing in spinal cats and kittens.” Experimental Neurology 82: 73-88, 1983.