Sensorimotor Deficits After Right Brain Damage

  • Paolo Bartolomeo


This chapter describes several unexpected instances of hemispheric asymmetries in the occurrence of deficits which neurology textbooks traditionally ascribed to basic sensory or motor forms of impairment. These deficits seem to occur much more frequently after right hemisphere damage than after left-sided lesions. This suggests that key attentional functions of the right hemisphere are important not only for “cognitive” abilities such as spatial orienting but also for more basic capacities such as visual detection or oculomotor control. Other apparently “low-level” deficits are extinction and deviations of gaze position. Extinction refers to the patient’s inability to report the contralesional stimulus of two stimuli presented simultaneously in the right and left hemispaces, whereas the same stimulus is correctly reported when presented alone in either hemispace. Right hemisphere damage may also induce tonic or phasic gaze deviations towards the right, which have a close relationship with signs of left spatial neglect (Chaps. 4, 5, 6, and 7).


Motor system Visual processing Somatosensory processing Gaze position Gaze deviation Magnetic attraction of gaze 


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Further Reading

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Copyright information

© Springer-Verlag London 2014

Authors and Affiliations

  • Paolo Bartolomeo
    • 1
    • 2
  1. 1.Brain and Spine Institute Hôpital de la SalpêtrièreInstitut national de la santé et de la recherche médicale (INSERM)ParisFrance
  2. 2.Department of PsychologyCatholic UniversityMilanItaly

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