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Babies' Brain Responses to Strangers

The Malleability of Social Group Understanding in Infancy and Early Childhood

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06550245
Enrollment
100
Registered
2024-08-13
Start date
2024-07-23
Completion date
2025-10-31
Last updated
2025-03-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infant Development

Brief summary

Researchers at the Diversity in Development Lab at UC Santa Cruz are investigating how babies' brain activities respond to people from familiar and unfamiliar racial backgrounds.

Detailed description

The goal of this observational study is to learn how infants' brain activities, as captured by EEG, differ for familiar or unfamiliar racial group in typically developing infants. The main questions of the study are: * Will infants show greater event-related desynchronization (i.e., more motor system activation), frontal theta synchronization (i.e., more attention), and more positive frontal alpha asymmetry (i.e., more approach motivation) to familiar than unfamiliar racial group? * How does infants' exposure to racial diversity in their social network and neighborhoods relate to these EEG activities? Participants will visit a laboratory at the UC Santa Cruz campus for this study. Infants will put an EEG cap on and watch about 15 minutes of videos, in which people from different racial backgrounds do different actions (e.g., grabbing an object, saying hi and approaching closer, and playing peek-a-boo). Caregivers will be asked to fill out a demographic form and a social network survey.

Interventions

OTHERInfants observing familiar and unfamiliar racial groups

All infants will see videos of people from familiar and unfamiliar racial backgrounds. Depending on the caregiver's race, infants will be assigned to see people who are from the same racial background as their caregiver (i.e., familiar) and people who are not.

Sponsors

University of California Santa Cruz
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
7 Months to 12 Months
Healthy volunteers
Yes

Inclusion criteria

* typically developing * age 7 to 12 months * at least 37 weeks gestation

Exclusion criteria

* any known developmental delays * less than 37 weeks gestation

Design outcomes

Primary

MeasureTime frameDescription
Mu event related desynchronizationThrough study completion, an average of 10 years.EEG oscillation in alpha power over central regions
Frontal theta synchronizationThrough study completion, an average of 10 years.EEG oscillation in theta power over frontal regions
Frontal alpha asymmetryThrough study completion, an average of 10 years.left and right hemispheric difference in EEG oscillation in alpha power in the frontal regions

Countries

United States

Contacts

Primary ContactSeaera Juarez, BA
did.lab@ucsc.edu(831) 264-8155

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026