Category-specific naming disturbances in modality-specific aphasia. A study of a case with optic anomia, tactile aphasia and gustatory aphasia.

Shinobu Hasegawa; Kunihiko Endo; Jun Nakamura; Yumi Hamano; Koji Shigeno; Tsuneo Hasegawa

doi:10.2496/apr.20.337

January 1, 2000Shitsugoshō kenkyū/Shitsugoshou kenkyuuOpen Access

Category-specific naming disturbances in modality-specific aphasia. A study of a case with optic anomia, tactile aphasia and gustatory aphasia.

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Key Points

To elucidate the neural mechanisms of modality-specific aphasias and category-specific naming preservation in a patient with left hemisphere cerebral infarction.
Evaluated a single patient who developed optic anomia, tactile aphasia, and gustatory aphasia after a left hemisphere stroke.
Characterized structural brain lesions via MRI, identifying subcortical hyperintensities in the left angular gyrus and left frontal lobe.
Administered visual confrontation naming assessments across 10 distinct semantic categories.
Visual confrontation naming performance was significantly higher for body parts and clothing than for items across the eight other semantic categories.
Optic anomia, tactile aphasia, and gustatory aphasia were attributed to structural disconnections separating perceptual processing systems from the language system.
Preservation of body part naming indicates that an independent neural tract connecting body schema representations directly to language centers remained intact.

Implication

Case report reveals preserved body part naming amid multimodal aphasias after stroke, suggesting distinct neural pathways link body schema directly to language.

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Hasegawa et al. (2000) studied this question.

synapsesocial.com/papers/6aae03134f81410a84b8bdaf https://doi.org/10.2496/apr.20.337

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Category-specific naming disturbances in modality-specific aphasia. A study of a case with optic anomia, tactile aphasia and gustatory aphasia.

Key Points

Implication

Abstract

Discussion

Cite This Study

Category-specific naming disturbances in modality-specific aphasia. A study of a case with optic anomia, tactile aphasia and gustatory aphasia.

Key Points

Implication

Abstract

Discussion

Cite This Study

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