Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Associative Visual Agnosia

  • John E. MendozaEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_708

Definition

Regardless of modality, an associative agnosia implies that although perception is intact, the particular stimulus has no meaning (“associative” value) to the individual. The stimulus can neither be named nor linked to other personal or sensory experiences. Hence, associative visual agnosia refers to the inability to identify or categorize a visually presented stimulus despite adequate visual perception.

Current Knowledge

Individuals with this disorder should be able to match the visual stimulus to a sample and copy or draw what is seen, thus distinguishing associative from apperceptivevisual agnosia. In the latter condition, visual object recognition is also impaired, but primarily as a result of a disturbance of perception. In addition to having difficulty naming visually presented objects, a patient suffering from associative visual agnosia would likely be unable to describe their use or purpose, or indicate to which category of objects they may belong. However, in pure...

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References and Readings

  1. Bauer, R. M., & Demery, J. A. (2003). Agnosia. In K. Heilman & E. Valenstein (Eds.), Clinical neuropsychology (4th ed., pp. 236–295). New York: Oxford University Press.Google Scholar
  2. DeRenzi, E., & Spinnler, H. (1966). Visual recognition in patients with unilateral cerebral disease. Journal of Nervous and Mental Disease, 142, 513–525.Google Scholar
  3. DeRenzi, E., Scotti, G., & Spinnler, H. (1969). Perceptual and associative disorders of visual recognition. Relationship to the side of the cerebral lesion. Neurology, 19, 634–642.CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Psychiatry and NeuroscienceTulane Medical School and SE Louisiana Veterans Healthcare SystemNew OrleansUSA