Evolutionary approach to emotion using affective prosody: a fNIRS study Coralie Debracque Debracque, C., Slocombe, K., Clay, Z., Grandjean D. & Gruber, T.
Introduction
Research questions •
Can we (Humans) recognize Primate’s emotions ?
•
How Humans categorize and discriminate Ape’s emotions ?
•
Does exist ≠ cerebral’ patterns according to the phylogenetic tree ?
Methods •
N = 30
•
Affective prosody (anger, fearful & happiness)
Frühholz & Grandjean, 2013
Modified from Slocombe & Zuberbühler, 2013
Methods •
•
•
Chimpanzee, Bonobo & Macaque vocalizations Human voices
fNIRS
Experimental design
Preliminary results
Apes > Human
Human
Preliminary results
Chimp
Bonobo
Macaque
Early conclusion •
Left IFG +++ for human voices: in agreement with our pilot study •
fNIRS can be use as a tool to explore emotion processes
•
Right IFG +++ for apes vocalizations : “Just” emotion, no impact of language structures (Broca) ??
•
≠ cerebral patterns according to the species hypotheses ok • • •
