Topographical disorientation in a patient with right parahippocampal infarction.

We here describe a patient showing topographical disorientation (TD) after infarction of the right medial occipital lobe; the lesion included the parahippocampal gyrus. Clinical and neuropsychological observations demonstrated a specific pattern of impairment in terms of visual and visuospatial (topographical) learning, and memory. He had no landmark agnosia.

A Japanese case with Nasu-Hakola disease of DAP12 gene mutation exhibiting precuneus hypoperfusion.

A 38-year-old Japanese man with Nasu-Hakola disease (NHD) had repeated pathological fractures and frontal lobe symptoms which developed when he was 18 and 26 years old, respectively. Neuropsychological testing showed memory impairment, and in particular, visuo-spatial memory at the age of 35. Furthermore, single-photon emission computed tomography revealed precuneus hypoperfusion.

Body image, symptoms and insight in chronic schizophrenia.

Historically, schizophrenics' body image problems were regarded as related particularly to delusions and hallucinations. However, during the 1980s, the predominant view of the phenomenology of the disorder broadened to include negative symptoms; deviations in schizophrenics' body image underlie various behaviors or allegations concerning the body and should be refocused. The present study attempted to detect body image deviations in chronic schizophrenia using the Body Image Questionnaire (BIQ), which comprises three hypothetical components (anatomical, functional and other psychological components), and to clarify their related clinical characteristics in symptoms and insight.