Table 4.

Summary of the neuroanatomical correlates of dyslexia and the neuroanatomical correlates dyscalculia.

Type of research study	Neuroanatomical correlates of dyslexia	Neuroanatomical correlates of dyscalculia
Functional Neuroimaging Studies	Left angular gyrus Left inferior frontal gyrus Left fusiform gyrus	Left angular gyrus Left intraparietal sulcus Right intraparietal sulcus
Structural Neuroimaging Studies	Left angular gyrus Left inferior frontal gyrus Left fusiform gyrus	Left angular gyrus Right intraparietal sulcus
Functional Connectivity Studies	Left angular gyrus Left inferior frontal gyrus Left fusiform gyrus	Left angular gyrus Left intraparietal sulcus Right intraparietal sulcus
Lesion-Symptom Mapping Studies	Left angular gyrus Left inferior frontal gyrus Left fusiform gyrus	Left angular gyrus Left intraparietal sulcus

The brain regions listed here have been characterized as neuroanatomical correlates of dyslexia or dyscalculia in all four types of studies included in this systematic review (functional neuroimaging studies, structural neuroimaging studies, functional connectivity studies, and lesion-symptom mapping studies), with the exception of the intraparietal sulci. The review did not identify any structural neuroimaging studies that characterized the left intraparietal sulcus as a neuroanatomical correlate of dyscalculia, nor did it identify any lesion-symptom mapping studies that characterized the right intraparietal sulcus as a neuroanatomical correlate of dyscalculia.