Photography of Katja Valli

Katja Valli

Katja Valli is currently a postdoctoral researcher at the University of Turku, Finland and a senior lecturer in cognitive neuroscience at the University of Skövde, Sweden. Her research centers on altered states of consciousness, cognitive science, computer supported collaborative learning, dream and sleep research, educational psychology, inquiry based learning, and sociocultural theory.

OM Contributions


  • Valli K., & Revonsuo A. (2009). The threat simulation theory in light of recent empirical evidence: A review. The American Journal of Psychology, 122(1), 17-38.

  • Johanson M., Valli K., Revonsuo A., & Wedlund J. E. (2008). Content analysis of subjective experiences in partial epileptic seizures. Epilepsy and Behavior 12(1), 170-182.

  • Valli K., Revonsuo A., Pälkäs O., & Punamäki R. L. (2006). The effect of trauma on dream content: A field study of Palestinian children. Dreaming 16(2), 63.

  • Valli K., Revonsuo A., Pälkäs O., Ismail K. H., Ali K. J., & Punamäki R. L. (2005). The threat simulation theory of the evolutionary function of dreaming: Evidence from dreams of traumatized children. Consciousness and Cognition 14(1), 188-218

  • Revonsuo A., & Valli, K. (2000). Dreaming and consciousness: Testing the threat simulation theory of the function of dreaming. Psyche: An Interdisciplinary Journal of Research on Consciousness, 6(8).