The Show Dog Syndrome appears to be similar to reactive depression in humans. Overmeier has demonstrated such a syndrome – which he labeled “learned helplessness” – in dogs and argued that insecurity and an inability to predict and control traumatic environmental stimuli underlies the development of such a syndrome.
Fox, M. W.
"The "Show Dog" Syndrome,"
International Journal for the Study of Animal Problems: Vol. 3:
1, Article 4.
Available at: https://www.wellbeingintlstudiesrepository.org/ijsap/vol3/iss1/4