How a single scent can unlock the architecture of trauma

PTSD, Psychological Trauma and Head Injuries · 51:50 · Video: The Royal Institution · Watch at the source

In short: Why do certain smells trigger vivid, involuntary memories of the battlefield? This exploration examines how olfactory triggers provide a unique window into the neurological processing of PTSD, head injuries, and psychological trauma.

Neuroscientist Morten Kringelbach aims to reverse-engineer the human brain to understand the heuristics of survival and thriving. His work focuses on the breakdown of hedonia (pleasure) and eudaimonia (a life well-lived) into anhedonia, a key feature of various neuropsychiatric disorders.

Army doctor Alexander Wieck Fjaeldstad, a veteran of the Danish army, investigates how olfaction serves as a potent trigger for memories. By studying these reactions in veterans with and without PTSD, researchers hope to uncover how the brain processes trauma and develop new clinical applications for olfactory research.

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