Visual texture agnosia caused by bilateral posterior cerebral artery stroke: a case study

ABSTRACT

A 57-year-old man presented with a bilateral posterior cerebral artery attack and was visually impaired. He had a hard time identifying familiar faces and shades. He also felt that the familiar building looked different, and complained that it was not possible to tell from visual information alone whether the food was cooked or the kimono fabric was soft.We assessed the patient’s visual function using real materials and material images and was diagnosed with visual texture agnosia. There are few reports of visual texture agnosia, detailed evaluation is considered important because perceiving texture is important for activities of daily living. 

KEYWORDS:

• Visual texture agnosia
• bilateral posterior cerebral artery
• reversible cerebral vasoconstriction syndrome
• texton
• real materials
• material images

Disclosure of interest

No potential competing interest was reported by the authors.