関連する実験動画
Updated: Jul 8, 2026

09:35
Neurodevelopmental Reflex Testing in Neonatal Rat Pups
Published on: April 24, 2017
子どもと青少年における知的能力と皮質の発達
P Shaw1, D Greenstein, J Lerch
1Child Psychiatry Branch, National Institute of Mental Health, Bethesda, Maryland 20182, USA. shawp@mail.nih.gov
Nature
|March 31, 2006
まとめ
子どもの知能は,彼らの脳の働きと関係しています.
科学分野:
- 神経科学は神経科学である.
- 発達心理学の心理学について
- コグニティブ・サイエンス コグニティブ・サイエンス
背景:
- 一般知能は安定した特徴ですが,脳の発達における神経解剖学的根拠は不明です.
- これまでの研究は,子どもの脳構造と知性の関係を完全に解明できませんでした.
- 知能の神経的基礎を理解することは,認知発達の研究にとって極めて重要です.
研究 の 目的:
- 子どもと青少年における一般知能の神経解剖学的相関性を調査する.
- 皮質の厚さやその発達軌跡が知性とより密接に関連しているかどうかを判断する.
- 知的発達に関連した脳構造のダイナミックな変化を探求する.
主な方法:
- 長期的研究デザインは,時間の経過とともに脳の発達を追跡します.
- 脳の皮質の厚さの変化が知性と関係する分析.
- 皮質の厚さと知能の相関関係における発達変化に焦点を当てます.
主要な成果:
- 静的な厚さではなく,皮質厚さの変化の軌道は,知能と相関しています.
- 発達的なシフトは,知能と皮質の厚さとの間の負の相関から正の相関に起こります.
- 知能は,特に前頭部領域の皮質発達の軌跡と関連しています.
結論:
- 子どもにおける知能の神経解剖学的表現は動的であり,静的ではありません.
- 加速した皮質の発達と,その後の薄めることが,より知的な子供の特徴です.
- 脳の可塑性は,一般知能の発達において重要な役割を果たします.
関連する概念動画
Biological Influences on Intelligence
Intelligence is often thought to be linked to brain size, but the relationship is more complex than that. While brain size does correlate modestly with some abilities, like verbal skills, the connection is weaker for others, such as spatial reasoning. Other factors, like brain structure, also play crucial roles. For instance, despite Einstein's smaller-than-average brain, his parietal cortex, which is involved in spatial reasoning, was 15% wider, suggesting that neural density might matter more...
Environmental Influences on Intelligence
Despite the strong genetic influence on traits like intelligence, environmental factors significantly shape outcomes. For example, while over 90% of height variation is due to genetic differences, environmental factors such as nutrition also have a notable impact. Similarly, for intelligence, changes in a child's surroundings can significantly alter their IQ. Research shows that enriched environments boost children's academic success and help them develop key cognitive skills. Children from...
Introduction to Developmental Psychology
Developmental psychology explores the changes and continuities in human abilities throughout life, encompassing physical, cognitive, linguistic, and social dimensions. Human development is not restricted to growth, but includes aspects of decline, particularly in physical abilities as individuals age. Developmental psychologists seek to understand how people change as they age and how their mental and social skills evolve.Developmental MilestonesA key concept in developmental psychology is...
Three 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,...
Cognitive 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...
Intellectual Disability
Intellectual disability (ID) is a neurodevelopmental condition characterized by deficits in intellectual and adaptive functioning that manifest during the developmental period. This condition encompasses challenges in reasoning, memory, problem-solving, and learning, accompanied by impairments in everyday life skills, such as communication, self-care, and social interactions. Intellectual disability affects approximately 1% of the population in the United States, impacting an estimated 5...

