Related Experiment Video
Updated: May 12, 2026
07:15
Social Defeat Stress Model for Adolescent C57BL/6 Male and Female Mice
Published on: March 15, 2024
Maturation of the adolescent brain
Mariam Arain1, Maliha Haque, Lina Johal
1Saint James School of Medicine, Kralendijk, Bonaire, The Netherlands.
Neuropsychiatric Disease and Treatment
|April 13, 2013
Summary
Adolescent brain development continues through puberty, with ongoing myelination and neurocircuitry changes making teens vulnerable to impulsive behaviors. Factors like hormones, environment, and substance abuse significantly impact this critical maturation period.
Area of Science:
- Neuroscience
- Developmental Psychology
- Adolescent Health
Background:
- Adolescence is a critical developmental period marked by significant intellectual, physical, hormonal, and social maturation.
- Brain development, including myelinogenesis and neurocircuitry refinement, continues throughout adolescence, rendering the brain vulnerable to various influences.
- Hormonal changes, environmental factors, and neurotransmitter system maturation (predominantly glutamatergic) shape adolescent behavior and cognitive functions.
Purpose of the Study:
- To review the multifaceted factors influencing adolescent brain maturation.
- To highlight the neurobiological underpinnings of adolescent impulsivity and vulnerability.
- To discuss the impact of environmental and social factors on brain development during this epoch.
Main Methods:
- Review of magnetic resonance imaging studies on brain development.
- Analysis of the role of sex hormones (estrogen, progesterone, testosterone) in myelination.
- Examination of neurotransmitter system dynamics (glutamate, GABA) and their behavioral correlates.
- Assessment of environmental influences, including toxins and substance abuse, on synaptic plasticity.
Main Results:
- Adolescent brain regions remain structurally and functionally vulnerable due to ongoing myelinogenesis and neurocircuitry maturation.
- Heredity, environment, sex hormones, and neurotransmitter imbalances contribute to impulsive behaviors and neurobehavioral excitement.
- Adolescents are particularly susceptible to social maladjustments and risky behaviors due to immature prefrontal cortex and limbic system development.
- Substance abuse (alcohol, cigarettes, caffeine) and environmental neurotoxins can negatively impact synaptic plasticity and neurotransmitter release.
Conclusions:
- Adolescent brain maturation is a complex process influenced by a dynamic interplay of biological, environmental, and social factors.
- Understanding these influences is crucial for addressing the heightened vulnerability of adolescents to substance abuse, mental health issues, and risky behaviors.
- Targeted interventions considering age, sex, disease, nutrition, and substance abuse are needed to support healthy adolescent brain development.
Related Concept Videos
01:18Cognitive Development During Adolescence
During adolescence, individuals experience significant cognitive development that enhances their understanding of others' emotions and thoughts, known as cognitive empathy. This period is marked by an increased ability to adapt to others' perspectives and a more nuanced understanding of others' mental states, a skill that is foundational for social problem-solving and conflict avoidance. The development of cognitive empathy relies heavily on the theory of mind — the recognition that people have...
01:24Revisionist Views of Adolescent and Adult Cognition
A revisionist approach to Jean Piaget's theory of cognitive development has brought new insights that challenge and reinterpret his established ideas. Piaget proposed that the formal operational stage, emerging in adolescence, represents the culmination of cognitive maturity. During this stage, individuals are said to develop abstract thinking, engage in systematic problem-solving, and show a form of egocentrism, believing others are as preoccupied with their behavior as they are themselves.
01:01Neuroplasticity
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
01:30Cognitive Development During Adulthood
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
01:19Piaget's Stage 4 of Cognitive Development
The formal operational stage, as described in Piaget's cognitive development theory, begins around age 11 and extends into adulthood. It marks the emergence of advanced cognitive abilities that differentiate adolescent and adult thinking from those of younger children. This stage is characterized by abstract reasoning, hypothetical-deductive reasoning, and a more complex understanding of self and others.
Abstract Reasoning and Hypothetical-Deductive Thinking
Unlike the concrete operational...
Abstract Reasoning and Hypothetical-Deductive Thinking
Unlike the concrete operational...
01:29Three Developmental Domains
Human development is typically examined across three main domains: physical, cognitive, and socio-emotional. These domains represent the significant areas of change and continuity throughout the lifespan, from infancy to late adulthood.
Physical Development
Physical processes, also known as maturation, encompass the biological changes that occur across an individual's life. These changes begin with genetic inheritance and continue through various stages, including growth in height and weight,...
Physical Development
Physical processes, also known as maturation, encompass the biological changes that occur across an individual's life. These changes begin with genetic inheritance and continue through various stages, including growth in height and weight,...