[3] Although many of his theoretical concepts, basic scientific knowledge and data processing techniques were primitive by our standards, his approach, his emphasis on demonstrable facts, and his many well-substantiated conclusions mark his Treatise on Hysteria as an avant-garde work relevant even today.
He cites Louyer-Villermay, M. Dubois, M. Landouzy, and M. Monneret as putting to rest the doubt over male hysteria.
[5]: 11 He wrote, "Regardless of the denials, men may suffer from hysteria, and the cases that prove it are not rare, and it is only possible to prevent it by acknowledging that.
Apart from the gender factor, Briquet studied the epidemiology of hysteria through 430 patients that he attended over a decade of clinical work.
[6]: 95 Micale describes the anticipation of affective neuroscience:[6]: 94 In his 2004 history of mental illness, Theodore Millon noted Briquet's advances: