The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
MeSH Review


Welcome! If you are familiar with the subject of this article, you can contribute to this open access knowledge base by deleting incorrect information, restructuring or completely rewriting any text. Read more.

Disease relevance of Agnosia

  • On comparison with previously reported cases, our results support the hypothesis that carbon monoxide toxicity can induce a visual agnosia of the apperceptive type with well defined characteristics, seldom seen with other types of cerebral injury [1].
  • This review will examine artistic production in individuals with a variety of syndromes including achromatopsia, neglect, visual agnosia, aphasia, epilepsy, migraine, dementia and autism [2].
  • The MMPI, Portland Digit Recognition Test (PDRT; a forced choice measure of motivation), disability status, Face-Hand Test, and Finger Agnosia were compared in 53 patients with medically intractable seizure disorders who underwent intensive EEG monitoring [3].

Psychiatry related information on Agnosia

  • RESULTS: Severe cognitive deterioration, such as acquired, apraxia and agnosia, was evident in 28.3% of those aged over 30 and a higher prevalence of these impairments was associated with older age [4].

High impact information on Agnosia

  • One patient with a right inferior occipito-temporal lesion had a facial emotion imagery generation defect, other RHD patients displayed a facial affect agnosia (being impaired on emotional imagery and emotional perceptual tasks), while other RHD patients had perceptual defects with sparing of imagery performance [5].
  • Associative visual agnosia was examined using the conceptual items of the Columbia Mental Maturity Test. Correlations between neurofibrillary tangle (NFT) and senile plaque (SP) densities and visual agnosia were studied using forward stepwise logistic regression [6].
  • CPT: a cure for fiscal agnosia [7].
  • The NES performance was significantly associated with functional neurological performance, including catching a ball, diadochokinesia, and finger agnosia [8].
  • Literature update. Agnosia in Alzheimer disease [9].

Chemical compound and disease context of Agnosia

  • Diazepam therapy of verbal auditory agnosia [10].
  • The cerebral glucose metabolism of eight patients with schizophrenia and an olfactory agnosia was compared with that of eight normosmic patients with schizophrenia and eight normal controls [11].
  • METHODS: The authors used standard cognitive tests and a novel battery designed to reflect dysfunction in both ventral (Object, Face & Color Agnosia Screen [OFCAS]) and dorsal (complex pictures and compound stimuli) visual streams [12].

Gene context of Agnosia

  • RESULTS: A statistically significant relation was found between NFT densities in Brodmann's areas 18, 19, and 37, and associative visual agnosia, whereas NFT densities in the areas studied did not correlate with the presence of apperceptive visual agnosia [6].
  • The language subtype of verbal auditory agnosia is associated with the highest risk of epilepsy in autistic (41%, 7 of 17) and dysphasic (58%, 7 of 12) children [13].
  • A group of children (primarily learning disabled) was divided into analysis (n = 488) and cross-validation (n = 400) samples and the following measures were taken for both the LH and the RH Tactile Perception, Finger Agnosia, Fingertip Number Writing, Tactile Form Recognition, Finger Tapping, Grip Strength, Grooved Pegboard, and Mazes [14].
  • The tactile impairment in monkeys with unilateral removals of area SII is seen as possibly analogous to the rare condition of tactile agnosia [15].
  • The 'global' character of dementia distinguishes it from other organic syndromes but in community surveys memory impairment is the predominant early symptom and the aphasia, apraxia and agnosia triad characteristic of dementia of Alzheimer type disease (DAT) may be hard to demonstrate [16].


  1. A historic case of visual agnosia revisited after 40 years. Sparr, S.A., Jay, M., Drislane, F.W., Venna, N. Brain (1991) [Pubmed]
  2. The neuropsychology of visual artistic production. Chatterjee, A. Neuropsychologia. (2004) [Pubmed]
  3. Psychological correlates of psychogenic seizures. Binder, L.M., Salinsky, M.C., Smith, S.P. Journal of clinical and experimental neuropsychology : official journal of the International Neuropsychological Society. (1994) [Pubmed]
  4. A four year prospective study of age-related cognitive change in adults with Down's syndrome. Oliver, C., Crayton, L., Holland, A., Hall, S., Bradbury, J. Psychological medicine. (1998) [Pubmed]
  5. Differential impact of right and left hemisphere lesions on facial emotion and object imagery. Bowers, D., Blonder, L.X., Feinberg, T., Heilman, K.M. Brain (1991) [Pubmed]
  6. Neuroanatomic correlates of visual agnosia in Alzheimer's disease: a clinicopathologic study. Giannakopoulos, P., Gold, G., Duc, M., Michel, J.P., Hof, P.R., Bouras, C. Neurology (1999) [Pubmed]
  7. CPT: a cure for fiscal agnosia. Rosenbaum, H.E., Segerson, J. Neurology (1979) [Pubmed]
  8. Feasibility and validity of three computer-assisted neurobehavioral tests in 7-year-old children. Dahl, R., White, R.F., Weihe, P., Sørensen, N., Letz, R., Hudnell, H.K., Otto, D.A., Grandjean, P. Neurotoxicology and teratology. (1996) [Pubmed]
  9. Literature update. Agnosia in Alzheimer disease. Gura, C. Alzheimer disease and associated disorders. (1997) [Pubmed]
  10. Diazepam therapy of verbal auditory agnosia. Nagafuchi, M., Iinuma, K., Yamamoto, K., Kitahara, T. Brain and language. (1993) [Pubmed]
  11. Regional metabolism in microsmic patients with schizophrenia. Clark, C., Kopala, L., Hurwitz, T., Li, D. Canadian journal of psychiatry. Revue canadienne de psychiatrie. (1991) [Pubmed]
  12. The cognitive profile of posterior cortical atrophy. McMonagle, P., Deering, F., Berliner, Y., Kertesz, A. Neurology (2006) [Pubmed]
  13. Autistic and dysphasic children. II: Epilepsy. Tuchman, R.F., Rapin, I., Shinnar, S. Pediatrics (1991) [Pubmed]
  14. Discriminant validity of lateral sensorimotor tests in children. Francis, D.J., Fletcher, J.M., Rourke, B.P. Journal of clinical and experimental neuropsychology : official journal of the International Neuropsychological Society. (1988) [Pubmed]
  15. Tactile discrimination learning in the monkey: the effects of unilateral or bilateral removals of the second somatosensory cortex (area SII). Garcha, H.S., Ettlinger, G. Cortex; a journal devoted to the study of the nervous system and behavior. (1980) [Pubmed]
  16. Methodological problems with diagnosis of dementia in community surveys: the choice of items to study higher functions. Kay, D.W., Blessed, G., Black, S.E. Neuroepidemiology. (1992) [Pubmed]
WikiGenes - Universities