O’Connor, P. J., & Youngstedt, M. A. (1995). Influence of exercise on human sleep. Exercise and Sport Science Reviews, 23, 105–134.

Pascual-Leone, A., Dang, N., Cohen, L. G., Brasil-Neto, J. P., Cammarota, A., & Hallet, M. (1995). Modulation of muscle responses evoked by transcranial magnetic stimulation during the acquisition of new fine motor skills. Journal of Neurophysiology, 74 (3), 1037–1045.

Ratey, J. (2008). Spark: The revolutionary new science of exercise and the brain. New York: Little, Brown.

Spiegel, K., Tasali, E., Penev, P., & Van Cauter, E. (2004, December 7). Sleep curtailment in healthy young men is associated with decreased leptin levels, elevated ghrelin levels and increased hun– ger and appetite. Annals of Internal Medicine, 141, 846–850.

Strohle, A., Feller, C., Onken, M., Godemann, F., Heinz, A., & Dimeo, F. (2005, December). The acute anti-panic activity of aerobic exercise. American Journal of Psychiatry, 162, 2376–2378.

Swain, R. A., Harris, A. B., Wiener, E. C., Dutka, M. V., Morris, H. D., Theien, B. E., et al. (2003). Prolonged exercise induces angiogenesis and increases cerebral blood volume in primary cortex of the rat. Neuroscience, 117, 1037–1046.

Van Praag, H., Shubert, T., Zhao, C., & Gage, F. H. (2005). Exercise enhances learning and hipppocampal neurogenesis in aged mice. Journal of Neuroscience, 25 (38), 8680–8685.

Ainsworth, M. D. S., Blehar, M. C., Waters, E., & Wall, S. (1978). Patterns of attachment: A psychological study of the strange situation. Hillsdale, NJ: Erlbaum.

Arbib, M. A. (2002). Language evolution: The mirror system hypothesis. In The handbook of brain theory and neural networks (2nd ed., pp. 606–611). Cambridge, MA: MIT Press.

Arden, J. (1996). Consciousness, dreams and self: A transdisciplinary approach. Madison, CT: International Universities Press.

Bartels, A., & Zekis, S. (2000). The neural basis of romantic love. Neuro Report, 11, 3829–3834.

Bassuk, S. S., Glass, T. A., & Berekman, L. F. (1998). Social disengagement and incident cognitive decline in community-dwelling elderly persons. Annals of Internal Medicine, 131, 165–173.

Berns, G. S., McClure, S. M., Pagnoni, G., & Montague, P. R. (2001). Predictability modulates human brain response to reward. Journal of Neuroscience, 21, 2793–2798.

Chungani, H. (2001). Local brain functional activity following early deprivation: A study of postinstitutional Romanian orphans. Neuro Image, 14, 184–188.

Cohen, S. (2004). Social relationships and health. American Psychologist, 59, 676–684.

Cohen, S., Doyle, W. J., Turnes, R., Alper, C. M., & Skoner, D. F. (2003). Sociability and susceptibility to the common cold. Psychological Science, 14 (5), 389–395.

Damasio, A. (2003). Looking for Spinoza’s joy, sorrow, and the feeling brain. New York: Harcourt.

Field, T. (2001). Touch. Cambridge, MA: MIT Press.

Field, T. (2002). Violence and touch deprivation in adolescents. Adolescence, 37, 735–749.

Field, T. M., Healy, B., Goldstein, S., & Bendell, D. (1988). Infants of depressed mothers show “depressed” behavior even with non-depressed adults. Child Development, 59, 1569–1579.