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Related Experiment Video

Updated: Jun 29, 2025

Author Spotlight: Investigating Vocal Information Representation in Small Primates and Its Alteration by Psychiatric Disorders Using Noninvasive EEG

Author Spotlight: Investigating Vocal Information Representation in Small Primates and Its Alteration by Psychiatric Disorders Using Noninvasive EEG

Published on: July 26, 2024

Cingulate cortex shapes early postnatal development of social vocalizations.

Gurueswar Nagarajan¹, Denis Matrov¹, Anna C Pearson¹

¹Section on Behavioral Neuroscience, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA.

Biorxiv : the Preprint Server for Biology

|March 26, 2024

Summary

Early damage to the anterior cingulate cortex (ACC) in marmosets impairs social vocalization development. This brain region is crucial for vocal communication and socioemotional regulation.

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Last Updated: Jun 29, 2025

Author Spotlight: Investigating Vocal Information Representation in Small Primates and Its Alteration by Psychiatric Disorders Using Noninvasive EEG

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Published on: June 5, 2016

Area of Science:

Neuroscience
Developmental Biology
Primatology

Background:

Social vocal behavior is vital for development.
The anterior cingulate cortex (ACC) is linked to socioemotional regulation.
Understanding early brain damage effects on vocalizations is important.

Purpose of the Study:

To investigate if early life ACC damage affects vocal expression development in marmosets.
To examine the long-term consequences of ACC lesions on social vocalizations.

Main Methods:

Neonatal marmosets received ACC lesions.
Vocalizations were compared between lesioned and control groups over 6 weeks.
Downstream brain areas (amygdala, periaqueductal gray) were analyzed in adults.

Main Results:

Early ACC lesions did not affect vocal call production but altered call quality.
Lesioned marmosets produced fewer, louder, and more monotonic social contact calls.
Adults with ACC damage showed altered GABA-immunoreactivity in social vocalization brain areas.

Conclusions:

The ACC is critical for the normal development of social vocal behavior.
Early ACC damage disrupts vocal network interactions and leads to lasting changes.
ACC's role in socioemotional regulation is intertwined with vocal communication development.