Analyses of periodic processes in psychophysiological research (Porges and Bohrer, 1991)
Orienting in a defensive world: Mammalian modifications of our evolutionary heritage. A Polyvagal Theory. (Porges, 1995)
Physiological regulation in high-risk infants: A model for assessment and potential intervention (Porges, 1996)

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Laboratory of Developmental Assessment / University of Maryland / Last updated: August 98