TY - JOUR
T1 - Contrast of hemispheric lateralization for oro-facial movements between learned attention-getting sounds and species-typical vocalizations in chimpanzees
T2 - Extension in a second colony
AU - Wallez, Catherine
AU - Schaeffer, Jennifer
AU - Meguerditchian, Adrien
AU - Vauclair, Jacques
AU - Schapiro, Steven J.
AU - Hopkins, William D.
N1 - Funding Information:
This research was supported by a French National Research Agency (ANR) grant, reference ANR-08-BLAN-0011_01. The chimpanzees at the KCCMR were supported by NIH-RR-15090 and additional funding was provided by NIH grants NS-42867, NS-73134, HD-56232 and HD-60563. The writing of this paper was made possible by a fellowship from the Medical Research Foundation to C. W.
PY - 2012/10
Y1 - 2012/10
N2 - Studies involving oro-facial asymmetries in nonhuman primates have largely demonstrated a right hemispheric dominance for communicative signals and conveyance of emotional information. A recent study on chimpanzee reported the first evidence of significant left-hemispheric dominance when using attention-getting sounds and rightward bias for species-typical vocalizations (Losin, Russell, Freeman, Meguerditchian, Hopkins & Fitch, 2008). The current study sought to extend the findings from Losin et al. (2008) with additional oro-facial assessment in a new colony of chimpanzees. When combining the two populations, the results indicated a consistent leftward bias for attention-getting sounds and a right lateralization for species-typical vocalizations. Collectively, the results suggest that both voluntary-controlled oro-facial and gestural communication might share the same left-hemispheric specialization and might have coevolved into a single integrated system present in a common hominid ancestor.
AB - Studies involving oro-facial asymmetries in nonhuman primates have largely demonstrated a right hemispheric dominance for communicative signals and conveyance of emotional information. A recent study on chimpanzee reported the first evidence of significant left-hemispheric dominance when using attention-getting sounds and rightward bias for species-typical vocalizations (Losin, Russell, Freeman, Meguerditchian, Hopkins & Fitch, 2008). The current study sought to extend the findings from Losin et al. (2008) with additional oro-facial assessment in a new colony of chimpanzees. When combining the two populations, the results indicated a consistent leftward bias for attention-getting sounds and a right lateralization for species-typical vocalizations. Collectively, the results suggest that both voluntary-controlled oro-facial and gestural communication might share the same left-hemispheric specialization and might have coevolved into a single integrated system present in a common hominid ancestor.
KW - Communicative behaviors
KW - Emotions
KW - Gestural communication
KW - Hemispheric specialization
KW - Oro-facial asymmetry
KW - Oro-facial communication
KW - Primates
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U2 - 10.1016/j.bandl.2012.07.002
DO - 10.1016/j.bandl.2012.07.002
M3 - Article
C2 - 22867751
AN - SCOPUS:84865412582
SN - 0093-934X
VL - 123
SP - 75
EP - 79
JO - Brain and Language
JF - Brain and Language
IS - 1
ER -