Related Experiment Video
Updated: Jul 12, 2025
07:57
A New Method for Inducing a Depression-Like Behavior in Rats
Published on: February 22, 2018
21.0K
Do childhood depressive symptoms interfere with intelligence in adulthood?
Janielle Ferreira de Brito Lima1, Raina Jansen Cutrim Propp Lima1, Mônica Araújo Batalha1
1Universidade Federal do Maranhão. Departamento de Saúde Pública. São Luís, MA, Brasil. São Luís, MA, Brazil.
Revista De Saude Publica
|October 25, 2023
Summary
Childhood depression significantly impacts adult intelligence, lowering IQ scores. Early cognitive function and parental education positively influence intellectual development.
Area of Science:
- Developmental Psychology
- Neuroscience
- Public Health
Background:
- Childhood mental health is crucial for long-term development.
- Depressive symptoms in youth can have lasting consequences.
- Understanding factors influencing intellectual development is key.
Purpose of the Study:
- To examine the long-term effects of childhood depressive symptoms on young adult intelligence.
- To identify predictors of intellectual development in young adults.
Main Methods:
- A birth cohort study in Brazil with 339 participants, assessed in childhood (7-9 years) and young adulthood (18-19 years).
- Structural equation modeling was used to analyze childhood variables (depressive symptoms, cognitive function, nutritional status, socioeconomic factors) and their impact on adult intelligence quotient (IQ).
Main Results:
- Childhood depressive symptoms were associated with a significant reduction in adult IQ (-3.83 points).
- Childhood cognitive function strongly predicted adult IQ (direct positive effect).
- Child nutritional status and parental education indirectly influenced adult IQ, partly mediated by childhood cognitive function.
Conclusions:
- Childhood depressive symptoms have a detrimental long-term effect on intellectual development.
- Early cognitive function and supportive socioeconomic factors are vital for optimal IQ development.
More Related Videos
Related Concept Videos
01:29Environmental Influences on Intelligence
309
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...
309
01:30Biological Influences on Intelligence
120
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...
120
01:29Intellectual Disability
57
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...
57
01:30Cognitive Development During Adulthood
125
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,...
125
01:30Attention-Deficit/Hyperactivity Disorder
73
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
73
01:29Measures of Intelligence
7.4K
Psychologists measure intelligence by using standardized tests that produce a score known as the intelligence quotient or IQ. To understand IQ tests, it's important to recognize the key principles behind their construction: validity, reliability, and standardization.
Validity refers to how well a test measures what it claims to measure. An intelligence test should accurately assess intelligence rather than another characteristic, like anxiety. Criterion validity is one way to evaluate this;...
Validity refers to how well a test measures what it claims to measure. An intelligence test should accurately assess intelligence rather than another characteristic, like anxiety. Criterion validity is one way to evaluate this;...
7.4K