Does vestibular stimulation activate thalamocortical mechanisms that reintegrate impaired cortical regions? Academic Article uri icon


MeSH Major

  • Cerebrovascular Disorders
  • Cognition Disorders
  • Temporal Lobe


  • Caloric stimulation induced a transient reversal of multimodal hemispatial cognitive deficits in an 81-year-old woman with an acute left cerebral hemisphere stroke. The patient had unawareness of her right hand (asomatognosia), right-sided visual unawareness (hemineglect), aphasia and right-sided weakness (hemiplegia) prior to the stimulation. Transient improvements in impaired sensory, motor, linguistic and cognitive function developed within 30 s following application of the caloric stimulus and onset of horizontal nystagmus. The effect persisted for 3 min and ceased completely after 5 min. While several recent reports have described the capacity of caloric stimulation to transiently improve or reverse a wide range of attentional, cognitive and motor impairments, most examples are in right-hemisphere-damaged patients with long-standing brain injury. Typically, patients have been tested several months or years after the onset of the deficit. A possible mechanism for the temporary reintegration of multiple cognitive functions in this patient is discussed.

publication date

  • February 22, 1999



  • Academic Article



  • eng

PubMed Central ID

  • PMC1689689

PubMed ID

  • 10097398

Additional Document Info

start page

  • 421

end page

  • 3


  • 266


  • 1417