PURE ALEXIAS
\pjˈʊ͡əɹ ɐlˈɛksi͡əz], \pjˈʊəɹ ɐlˈɛksiəz], \p_j_ˈʊə_ɹ ɐ_l_ˈɛ_k_s_iə_z]\
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Loss of the power to comprehend written materials despite preservation of the ability to write (i.e., alexia without agraphia). This condition is generally attributed to lesions that "disconnect" the visual cortex of the non-dominant hemisphere from language centers in the dominant hemisphere. This may occur when a dominant visual cortex injury is combined with underlying white matter lesions that involve crossing fibers from the occipital lobe of the opposite hemisphere. (From Adams et al., Principles of Neurology, 6th ed, p483)
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Word of the day
hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.