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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.
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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.
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The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
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Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
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Learning and Memory Impairments With Attention-Deficit/Hyperactivity Disorder.

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Attention-Deficit/Hyperactivity Disorder (ADHD) often involves learning and memory deficits, impacting executive functions. This review explores ADHD

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Genetics

Background:

  • Attention-Deficit/Hyperactivity Disorder (ADHD) is a chronic neurodevelopmental disorder.
  • ADHD is characterized by inattention, hyperactivity, and impulsivity.
  • Learning and memory impairment are significant comorbidities of ADHD, affecting executive functions.

Purpose of the Study:

  • To review current research on learning and memory impairment in ADHD.
  • To explore the underlying molecular mechanisms and genetic factors.
  • To provide a comprehensive understanding of ADHD pathogenesis.

Main Methods:

  • Review of existing literature on ADHD and learning/memory deficits.
  • Analysis of animal models exhibiting ADHD symptoms and cognitive impairment.
  • Examination of molecular mechanisms, including neurotransmitters, receptors, and RNAs.
  • Investigation of susceptibility genes associated with ADHD and learning impairment.

Main Results:

  • Animal models successfully replicate ADHD core symptoms alongside learning and memory deficits.
  • Key molecular pathways involving neurotransmitters, receptors, and RNAs are implicated in ADHD-related cognitive impairment.
  • Specific susceptibility genes contribute to the pathogenesis of ADHD and associated learning and memory issues.

Conclusions:

  • Learning and memory impairment are integral to ADHD's executive function deficits.
  • Understanding the molecular and genetic underpinnings is crucial for developing targeted interventions.
  • Further research into these areas will enhance comprehension of ADHD pathogenesis and improve patient outcomes.