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Related Concept Videos

Learning Disabilities01:25

Learning Disabilities

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Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
Dyslexia
Dyslexia is a...
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Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

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Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
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Neurulation01:30

Neurulation

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Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the...
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Inborn Errors of Metabolism01:20

Inborn Errors of Metabolism

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Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
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Attention-Deficit/Hyperactivity Disorder01:30

Attention-Deficit/Hyperactivity Disorder

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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....
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Autism Spectrum Disorder01:19

Autism Spectrum Disorder

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Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
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Related Experiment Video

Updated: Mar 6, 2026

Author Spotlight: Collecting the Brain and Serum from the Same Mice Fetus to Study Brain Tumor Development
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[Learning disorders in neurofibromatosis type 1].

J J Garcia-Penas1

  • 1Hospital Infantil Universitario Nino Jesus, 28009 Madrid, Espana.

Revista De Neurologia
|March 4, 2017
PubMed
Summary

Neurofibromatosis type 1 (NF1) frequently causes neurocognitive deficits and learning difficulties in children, impacting their quality of life. Early diagnosis and intervention for these learning disorders in NF1 patients can improve academic outcomes.

Area of Science:

  • Pediatric Neurology
  • Neurodevelopmental Disorders
  • Genetics

Background:

  • Neurofibromatosis type 1 (NF1) is a genetic disorder with high prevalence of neurocognitive deficits and academic learning difficulties in affected children.
  • These deficits manifest as impairments in attention, visual perception, language, executive function, academic skills, and behavior, contributing to lifetime morbidity.
  • Animal models suggest excessive Ras activity, leading to increased GABA inhibition and decreased long-term potentiation, underlies NF1-associated learning disabilities.

Framework:

  • Cognitive and behavioral disorders affect 50-80% of children with NF1.
  • Three subtypes of cognitive profiles are identified: global learning disorder, specific learning disorder, and isolated attention deficit hyperactivity disorder.
  • Common deficits include visual-spatial impairments, working memory issues, and executive function deficits linked to prefrontal cortex dysfunction.

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Implementation:

  • This study aims to delineate the frequency, severity, typology, and natural progression of specific cognitive deficits in pediatric NF1.
  • Utilizing established diagnostic criteria and cognitive assessments to identify and categorize learning disorders in children with NF1.
  • Longitudinal observation to track the course of cognitive impairments and their impact on academic performance.

Implications:

  • Cognitive dysfunction is the most prevalent complication of NF1, significantly affecting children's quality of life.
  • Prompt diagnosis and targeted treatment of learning disorders are crucial for enhancing the academic trajectory of children with NF1.
  • Understanding these cognitive profiles can inform the development of tailored educational and therapeutic strategies for NF1 patients.