Functional asymmetry of emotions in primates: new findings in chimpanzees

Brain Research Bulletin
Samuel Fernández-CarribaWilliam D Hopkins

Abstract

In the past 15 years, there have been a number of studies conducted on asymmetries in the perception and production of facial expressions in human and non-human primates as a means of inferring hemispheric specialization for emotions. We review these studies to assess continuity and discontinuity between species in these emotional processes. We further present new data on asymmetries in the production of facial expressions in a sample of captive chimpanzees. Objective measures (hemimouth length and area) and subjective measures (human judgement's of chimeric stimuli) indicate that chimpanzees' facial expressions are asymmetric, with a greater involvement of the left side of the face (right hemisphere) in the production of emotional responses. Left hemimouth was bigger than the right in the facial expressions of pant-hooting, play, and silent bared-teeth (p < 0.05) and it extended laterally more than the right in the categories of pant-hooting, silent bared-teeth, and scream face (p < 0.05). Human judges also reported that the left side of the faces was emotionally more intense in the case of the play and silent bared-teeth categories (p < 0.01). Thus, chimpanzees, like humans and some other non-human primates, show a right hemi...Continue Reading

References

Jun 1, 1984·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·H A SackeimB D Forman
Dec 24, 1998·Neuropsychologia·M A Hook-Costigan, L J Rogers

❮ Previous
Next ❯

Citations

Nov 23, 2006·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Andrew J TateKeith M Kendrick
Dec 10, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Jonathan Niall DaisleyLucia Regolin
Jan 14, 2011·Annual Review of Medicine·Bradley S Peterson, Myrna M Weissman
Oct 2, 2015·Annals of the New York Academy of Sciences·William D HopkinsElitaveta M Latash
Dec 14, 2011·Behavioural Brain Research·Orsola Rosa SalvaGiorgio Vallortigara
May 3, 2011·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Emese Nagy
Dec 7, 2010·Brain and Cognition·Catherine Wallez, Jacques Vauclair
Aug 12, 2014·Frontiers in Psychology·Kirsty M RossTetsuro Matsuzawa
Sep 3, 2011·Perception·Robin S S Kramer, Robert Ward
Mar 17, 2007·The International Journal of Neuroscience·Dahlia W Zaidel, Choi Deblieck
Jun 27, 2019·Human Nature : an Interdisciplinary Biosocial Perspective·Anna Ilona RobertsSam George Bradley Roberts
Mar 6, 2015·The Journal of Experimental Biology·Fei XueYezhong Tang

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.