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Gay A. Bradshaw

American psychologist and ecologist

  • 3 min read
  • 3 chapters

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Through Ecology, Self-determination and Post-traumatic stress disorder

Bradshaw's studies were the first to identify Post-Traumatic Stress Disorder (PTSD) in non-human animals beginning with free living elephants. She is the author of a seminal series of articles on great ape psychology, trauma, civil rights, and consciousness. This work was expanded to parrots, bears, and domestic animals and led to her founding the field of trans-species psychology, the articulation of a vertebrate common model of brain, mind, and behavior that is supported by existing science.

Discovery of PTSD in elephants and chimpanzees

In 2005, while investigating what was referred to as an outbreak of “abnormal behaviors,” Bradshaw established that in fact African elephants were experiencing Post-Traumatic Stress Disorder (PTSD). Psychological symptoms included inter- and intra-species aggression, abnormal startle response, depression, mood disorders, and socio-emotional dysfunction, including infant neglect. All were related to a series of human-caused trauma: mass killings, translocations, social disruption, and habitat loss and degradation. Her findings were further supported by neuroscience research stating that the brain structures affected by trauma (cortical and subcortical areas of the right brain) are highly conserved across species. The epidemic proportions of elephant PTSD signifies a critical point and portends imminent collapse of elephant societies in Asia and Africa.

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