Stress, Anxiety and Perceptual-Motor Learning, 1 Running head: STRESS, ANXIETY AND PERCEPTUAL-MOTOR LEARNING 1 2 PERCEPTUAL-MOTOR LEARNING BENEFITS FROM INCREASED STRESS AND 3 ANXIETY 4 5 Brenton Hordacre 1 , Maarten A. Immink 2 , Michael C. Ridding 1 and Susan Hillier 2 6 7 1 The Robinson Research Institute, School of Paediatrics and Reproductive Health, 8 University of Adelaide, Adelaide SA 5000 9 2 School of Health Sciences, University of South Australia, GPO Box 2471 Adelaide SA 5001 10 11 Corresponding author: 12 Maarten A. Immink 13 Email: maarten.immink@unisa.edu.au 14 Tel: +61 8 8302 2675 15 Fax: +61 8 8302 2853 16 17 Keywords: Psychological stress, anxiety, motor learning, learning, perceptual motor 18 performance. 19 20 Cite as: 21 Hordacre, B., Immink M.A., Ridding, M.C. & Hillier, S. (2016). Perceptual-motor 22 learning benefits from increased stress and anxiety. Human Movement Science, 49, 36- 23 46. 24 25 26 27