Neurodevelopmental timing and socio-cognitive development in a prosocial cooperatively breeding primate (Callithrix
Paola Cerrito1,2, Eduardo Gascon3, Angela C Roberts4
1Department of Evolutionary Anthropology, University of Zurich, Zürich, Switzerland.
Insights
Cooperative breeding in marmosets shapes brain development, with social brain areas maturing over extended periods. This timing aligns with behavioral milestones, offering insights into human social cognition evolution.
Area of Science:
- Neuroscience
- Developmental Biology
- Primatology
Background:
- Primate brain development is influenced by critical period inputs.
- Cooperative breeders, unlike independent breeders, involve infants interacting with multiple caregivers.
Purpose of the Study:
- To map the neurodevelopmental timing of the cooperatively breeding common marmoset onto behavioral milestones.
- To understand how social interactions shape brain development in cooperative breeders.
Main Methods:
- Combined behavioral observations, neuroimaging (anatomical and functional), and neural tracing experiments.
- Investigated structure-function relationships in marmoset brain development.
Main Results:
- Key brain areas for observing conspecifics develop in clusters with prolonged trajectories.
- These areas differentiate during infant-caregiver negotiation periods.
- Connectivity of these social brain regions is not stronger than with other brain areas.
Conclusions:
- The developmental timing of marmoset social brain areas correlates with social and behavioral milestones.
- Social brain development extends into adulthood, similar to humans.
- Findings suggest cooperative breeding is crucial for socio-cognitive skills and has implications for human social cognition evolution.
Abstract:
Primate brain development is shaped by inputs received during critical periods. These inputs differ between independent and cooperative breeders: In cooperative breeders, infants interact with multiple caregivers. We study how the neurodevelopmental timing of the cooperatively breeding common marmoset maps onto behavioral milestones. To obtain structure-function co-constructions, we combine behavioral, neuroimaging (anatomical and functional), and neural tracing experiments. We find that brain areas critically involved in observing conspecifics interacting (i) develop in clusters, (ii) have prolonged developmental trajectories, (iii) differentiate during the period of negotiations between immatures and multiple caregivers, and (iv) do not share stronger connectivity than with other regions. Overall, developmental timing of social brain areas correlates with social and behavioral milestones in marmosets and, as in humans, extends into adulthood. This rich social input is likely critical for the emergence of their strong socio-cognitive skills. Because humans are cooperative breeders too, these findings have strong implications for the evolution of human social cognition.
Related Concept Videos
01:30Socioemotional Development during Infancy
Primary Temperament Types
01:27Introduction to Developmental Psychology
Developmental Milestones
A key concept in developmental psychology is...
01:14Piaget's Stage 1 of Cognitive Development
01:18Cognitive Development During Adolescence
01:22Language Development
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
01:21The Nativist Approach