Mathematical disabilities: cognitive, neuropsychological, and genetic components

Area of Science:

• Neuroscience
• Cognitive Psychology
• Genetics

Background:

• Mathematical disability (MD) affects a significant portion of the population.
• Core cognitive and genetic underpinnings of MD require further elucidation.
• Existing research suggests a heterogeneous nature of MD.

Purpose of the Study:

• To review cognitive, neuropsychological, and genetic factors associated with mathematical achievement and disability.
• To identify core deficits underlying mathematical disability.
• To propose a framework for subtyping mathematical disorders.

Main Methods:

• Systematic review of existing literature on cognitive, neuropsychological, and genetic correlates of mathematical ability and disability.
• Analysis of studies investigating arithmetic fact retrieval, procedural execution, and visuospatial skills in individuals with MD.
• Discussion of potential genetic influences and the comorbidity with reading disabilities.

Main Results:

• Three distinct types of deficits associated with MD were identified: semantic memory retrieval of arithmetic facts, procedural execution, and visuospatial representation of numerical information.
• Cognitive, neuropsychological, and genetic factors contribute to these distinct deficits.
• The relationship between MD and reading disabilities is complex and warrants further investigation.

Conclusions:

• Mathematical disability is likely a heterogeneous disorder with distinct underlying cognitive and neuropsychological profiles.
• Identifying these core deficits is crucial for accurate diagnosis and targeted interventions.
• Subtyping mathematical disorders based on identified deficits can lead to more effective educational and therapeutic strategies.