Dyscalculia is a math learning disability that impairs an individual’s ability to learn number-related concepts, perform accurate math calculations, reason and problem solve, and perform other basic math skills. 1. Dyscalculia is sometimes called “number dyslexia” or “math dyslexia.”


Cluster Number:
Wiki Number: W071
Diagnosis: Dyscalculia (Math Abilities)
US Patients: 3-6%
World Patients:
Sex Ratio:
Age Onset:
Brain Area: intraparietal sulcus, frontal lobe, and left angular gyrus; difficulty with spatial awareness and memory
Symptoms: math abilities may stop at the 4th grade level, that may also be a developmental delay
Progression: Limitations in memory, counting, doing math problems, avoidance of careers where math or science is a component
Medications: transcranial direct durrent stimulation of the left parietal (anode) and right parietal lobe (cathode)improved math for 2.
Therapies: Several computerized training programs are listed in the Wikipedia article followed by the article’s bibliography.


The world-wide medical research
reports chosen for each diagnosis 

Clicking each title opens the
PubMed article’s summary-abstract.

  • Insights into Dyslexia Genetics Research from the Last Two Decades
    by Florina Erbeli on January 21, 2022

    Dyslexia, a specific reading disability, is a common (up to 10% of children) and highly heritable (~70%) neurodevelopmental disorder. Behavioral and molecular genetic approaches are aimed towards dissecting its significant genetic component. In the proposed review, we will summarize advances in twin and molecular genetic research from the past 20 years. First, we will briefly outline the clinical and educational presentation and epidemiology of dyslexia. Next, we will summarize results from twin...

  • Neurodevelopmental disorders in children and the possibilities of their pharmacotherapy
    by N N Zavadenko on January 18, 2022

    Neurodevelopmental disorders (NDD) are characterized by disturbances of the formation of cognitive functions, communication skills, behavior characteristics and/or motor skills, which are caused by abnormalities in the course of the processes of neuroontogenesis. In the clinical practice of a pediatric neurologist and pediatrician, a significant part consists of patients with NDD without a general decrease in intelligence, primarily with speech development disorders, attention deficit...

  • Dyscalculia and dyslexia in Chinese children with idiopathic epilepsy: different patterns of prevalence, comorbidity and gender differences
    by Dazhi Cheng on January 10, 2022

    OBJECTIVE: The present study aimed to examine the prevalence of dyscalculia, dyslexia and their comorbidity rates in a large population-based sample of children with idiopathic epilepsy (N = 2282) and a comparison sample of typically developing schoolchildren (N = 2371).

  • Reduced 2D form coherence and 3D structure from motion sensitivity in developmental dyscalculia
    by Elisa Castaldi on January 6, 2022

    Developmental dyscalculia (DD) is a specific learning disability affecting the development of numerical and arithmetical skills. The origin of DD is typically attributed to the suboptimal functioning of key regions within the dorsal visual stream (parietal cortex) which support numerical cognition. While DD individuals are often impaired in visual numerosity perception, the extent to which they also show a wider range of visual dysfunctions is poorly documented. In the current study we measured...