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Updated: Jun 2, 2026

Moderate Prenatal Alcohol Exposure and Quantification of Social Behavior in Adult Rats
Published on: December 14, 2014
Fetal alcohol spectrum disorders: an overview
Edward P Riley1, M Alejandra Infante, Kenneth R Warren
1Department of Psychology, Center for Behavioral Teratology, San Diego State University, San Diego, CA 92120, USA. eriley@mail.sdsu.edu
Fetal alcohol syndrome (FAS) is part of fetal alcohol spectrum disorders (FASD). Prenatal alcohol exposure profoundly impacts brain development, leading to cognitive and behavioral deficits, emphasizing FAS as a brain disorder.
Area of Science:
- Neuroscience
- Developmental Psychology
- Teratology
Background:
- Fetal alcohol syndrome (FAS) was historically diagnosed based on physical traits like facial anomalies and growth issues.
- FAS is now understood as the most severe end of fetal alcohol spectrum disorders (FASD).
- Prenatal alcohol exposure significantly affects fetal brain development and subsequent cognitive and behavioral outcomes.
Purpose of the Study:
- To review the impact of prenatal alcohol exposure on brain development and behavior.
- To highlight the intricate relationship between brain changes and behavioral deficits in FASD.
- To advocate for recognizing FAS as a primary brain disorder.
Main Methods:
- Review of existing research on fetal alcohol spectrum disorders.
- Analysis of neurobiological pathways affected by alcohol exposure during gestation.
- Examination of cognitive and behavioral consequences linked to prenatal alcohol exposure.
Main Results:
- Prenatal alcohol exposure disrupts brain development across all stages, from neurogenesis to myelination.
- Shared developmental pathways contribute to both the facial characteristics of FAS and abnormal brain development.
- A wide range of behaviors, including executive functions and motor control, are impacted.
Conclusions:
- Fetal alcohol spectrum disorders represent a spectrum of neurodevelopmental abnormalities caused by prenatal alcohol exposure.
- The profound effects on the brain underscore the need to view FAS as a brain-based disorder.
- Understanding the brain-behavior relationship is crucial for diagnosis and intervention in FASD.
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