This work focuses on the evolution of vocal communication and the origin of language. The aim was to investigate possible precursors of human language traits in non-human primate vocal communication. The vocal behaviour of several groups of wild Campbell's mones was followed during two years in the national park of Taï in the Ivory Coast Taï national park and at Rennes (Paimpont biological station). This study revealed communication capacities  rarely, or never  previously described in species of monkey (semantics, innovation, primitive syntax).


We showed that tactile stimulations  of animals at birth have an impact in the  more or less long term their importance depends, among others, on the side they are applied. So, manipulation of newborn foals does not have the same consequences when applied their rightor to their left (see complete article). In particular, animals manipulated on their right present avoidan approching human more frequently than animals manipulated on their left or not manipulated. Do human react similarly?

Scientists are now trying to answer this question by studying the organisation of neonatal care in maternities.

These projects concerning remedies showed that cochlear implants have a profound impact on the social integration of deaf children (communication, play and social interactions with peers increase significantly). In addition, we showed that bonding with a pet facilitates the social and cognitive recovery of children with autism; we recorded a considerable improvement of their social skills, especially their capacity to offer sharing and comfort. These features are typical of the empathy that is considerably altered in the autistic disorders.