Hemiagnosia; Left (or right) neglect; Spatial neglect; Unilateral neglect; Visual neglect; Visuospatial agnosia; Visuospatial neglect
Hemispatial neglect is one element of the neglect syndrome. Neglect is operationally defined as the failure to report, respond, or orient either to external sensory stimulation or mental representations of sensory events when the failure is not attributable to a primary sensory or motor deficit (Heilman et al. 1985). Hemispatial neglect denotes the consistency with which neglect occurs on one side of space located contralateral to brain injury. Hemispace is notsynonymous with the sensory hemifields; rather, each cerebral hemisphere is presumed to direct attention and movement in contralateral hemispace independent of the sensory hemifields or of the extremity used to operate in hemispace. In other words, the cerebral hemispheres are organized hemispatially with regard to attention and intention. While neglect may not be strictly...
References and Readings
- Chatterjee, A., & Mennemeier, M. (1998). Diagnosis and treatment of spatial neglect. In R. B. Lazar (Ed.), Principles of neurologic rehabilitation (pp. 597–612). New York: McGraw-Hill.Google Scholar
- Heilman, K. M., Watson, R. T., & Valenstein, E. (1985). Neglect and related disorders. In K. M. Heilman & E. Valenstein (Eds.), Clinical neuropsychology (2nd ed., pp. 243–293). New York: Oxford University Press.Google Scholar