Difference between revisions of "Somatosensory"

 
Line 1: Line 1:
 
'''Cortical somatosensory modalities''' (Klingner and Witte 2018)
 
'''Cortical somatosensory modalities''' (Klingner and Witte 2018)
  
stereognosis: the ability to understand or recognize an object by touch; deficit: astereognosis
+
* stereognosis: the ability to understand or recognize an object by touch; deficit: astereognosis
  
graphesthesia: the ability to recognize a number or letter traced on the skin; deficit: agraphesthesia  
+
* graphesthesia: the ability to recognize a number or letter traced on the skin; deficit: agraphesthesia  
  
two-point discrimination: two stimuli applied at the same time are felt as separate
+
* two-point discrimination: two stimuli applied at the same time are felt as separate
  
somatosensory extinction: inability to perceive two simultaneous somatosensory stimuli
+
* somatosensory extinction: inability to perceive two simultaneous somatosensory stimuli
  
autotopagnosia: inability of patient to point to a part of the body, despite being able to recognize and name that body part; few reported cases, lesions involving left posterior parietal cortex
+
* autotopagnosia: inability of patient to point to a part of the body, despite being able to recognize and name that body part; few reported cases, lesions involving left posterior parietal cortex
  
  

Latest revision as of 09:33, 13 June 2021

Cortical somatosensory modalities (Klingner and Witte 2018)

  • stereognosis: the ability to understand or recognize an object by touch; deficit: astereognosis
  • graphesthesia: the ability to recognize a number or letter traced on the skin; deficit: agraphesthesia
  • two-point discrimination: two stimuli applied at the same time are felt as separate
  • somatosensory extinction: inability to perceive two simultaneous somatosensory stimuli
  • autotopagnosia: inability of patient to point to a part of the body, despite being able to recognize and name that body part; few reported cases, lesions involving left posterior parietal cortex


References

Klingner, C. M. & Witte, O. W. Somatosensory deficits. in Handbook of Clinical Neurology vol. 151 185–206 (Elsevier, 2018). https://pubmed.ncbi.nlm.nih.gov/29519458/