Sulcal organization in the medial frontal cortex provides insights into primate brain evolution

C Amiez, J Sallet, WD Hopkins… - Nature …, 2019 - nature.com
Although the relative expansion of the frontal cortex in primate evolution is generally
accepted, the nature of the human uniqueness, if any, and between-species anatomo …

Sociality predicts orangutan vocal phenotype

AR Lameira, G Santamaría-Bonfil, D Galeone… - Nature Ecology & …, 2022 - nature.com
In humans, individuals' social setting determines which and how language is acquired.
Social seclusion experiments show that sociality also guides vocal development in …

Sulcal morphology of posteromedial cortex substantially differs between humans and chimpanzees

EH Willbrand, SA Maboudian, JP Kelly… - Communications …, 2023 - nature.com
Recent studies identify a surprising coupling between evolutionarily new sulci and the
functional organization of human posteromedial cortex (PMC). Yet, no study has compared …

Understanding Language Evolution: Beyond Pan‐Centrism

AR Lameira, J Call - BioEssays, 2020 - Wiley Online Library
Abstract Language does not fossilize but this does not mean that the language's
evolutionary timeline is lost forever. Great apes provide a window back in time on our last …

Handedness in monkeys reflects hemispheric specialization within the central sulcus. An in vivo MRI study in right-and left-handed olive baboons

K Margiotoudi, D Marie, N Claidière, O Coulon, M Roth… - Cortex, 2019 - Elsevier
Handedness, one of the most prominent expressions of laterality, has been historically
considered unique to human. This noteworthy feature relates to contralateral inter …

Coupled whole-body rhythmic entrainment between two chimpanzees

AR Lameira, T Eerola, A Ravignani - Scientific Reports, 2019 - nature.com
Dance is an icon of human expression. Despite astounding diversity around the world's
cultures and dazzling abundance of reminiscent animal systems, the evolution of dance in …

Sulcal Morphology in Cingulate Cortex is Associated with Voluntary Oro-Facial Motor Control and Gestural Communication in Chimpanzees (Pan troglodytes)

WD Hopkins, E Procyk, M Petrides, SJ Schapiro… - Cerebral …, 2021 - academic.oup.com
Individual differences in sulcal variation within the anterior and mid-cingulate cortex of the
human brain, particularly the presence or absence of a paracingulate sulcus (PCGS), are …

A review of performance asymmetries in hand skill in nonhuman primates with a special emphasis on chimpanzees

WD Hopkins - Progress in brain research, 2018 - Elsevier
Most humans report preferring the right hand for a variety of manual actions. Additionally,
most humans perform motor tasks better with their right hand, particularly among right …

Orangutans show active voicing through a membranophone

AR Lameira, RW Shumaker - Scientific Reports, 2019 - nature.com
Active voicing–voluntary control over vocal fold oscillation–is essential for speech.
Nonhuman great apes can learn new consonant-and vowel-like calls, but active voicing by …

The role of early social rearing, neurological, and genetic factors on individual differences in mutual eye gaze among captive chimpanzees

WD Hopkins, MM Mulholland, LA Reamer… - Scientific Reports, 2020 - nature.com
Mutual eye gaze plays an important role in primate social development and communication.
In the current study, we examined the underlying experiential, genetic, and neuroanatomical …