The role of self-touch in somatosensory and body representation disorders after stroke
| Autor: | M.J.E. van Zandvoort, H. C. Dijkerman, H. E. van Stralen |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_specialty
media_common.quotation_subject Somatosensory system Affect (psychology) General Biochemistry Genetics and Molecular Biology Physical medicine and rehabilitation Perception Body Image medicine Humans Stroke media_common Haptic technology Representation (systemics) Articles Somatosensory Cortex Middle Aged Hand medicine.disease Body schema Touch Somatoparaphrenia Female General Agricultural and Biological Sciences Psychology |
| Zdroj: | Philosophical Transactions of the Royal Society B: Biological Sciences. 366:3142-3152 |
| ISSN: | 1471-2970 0962-8436 |
| Popis: | Somatosensory impairments occur in about half of the cases of stroke. These impairments range from primary deficits in tactile detection and the perception of features, to higher order impairments in haptic object recognition and bodily experience. In this paper, we review the influence of active- and self-touch on somatosensory impairments after stroke. Studies have shown that self-touch improves tactile detection in patients with primary tactile deficits. A small number of studies concerned with the effect of self-touch on bodily experience in healthy individuals have demonstrated that self-touch influences the structural representation of one's own body. In order to better understand the effect of self-touch on body representations, we present an informal study of a stroke patient with somatoparaphrenia and misoplegia. The role of self-touch on body ownership was investigated by asking the patient to stroke the impaired left hand and foreign hands. The patient reported ownership and a change in affect over all presented hands through self-touch. The time it took to accomplish ownership varied, based on the resemblance of the foreign hand to the patient's own hand. Our findings suggest that self-touch can modulate impairments in body ownership and affect, perhaps by helping to reinstate the representation of the body. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|