Pierre Bonnier
Pierre Bonnier was a French otologist. He was the brother of architect Louis Bonnier.
He studied medicine in Paris, and in 1897 began work as an assistant in the medical clinic of the Hôtel-Dieu in Paris. In 1901 he was named president of Société d’Otologie et de Laryngologie de Paris. He was a member of the Institut Psychologique and the Société de Neurologie.
He specialized in research of auditory and vestibular systems and their disorders. The eponymous "Bonnier syndrome" is a syndrome characterized by deafness, ocular disturbances and other symptoms due to a lesion of the nucleus of Deiters. Around 1905 he introduced the term aschématie for a group of symptoms indicated by an inadequate account of the space occupied by some part of the body.