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A hemispheric asymmetry in somatosensory processing

Published online by Cambridge University Press:  20 August 2007

Giuseppe Vallar
Giuseppe Vallar
Affiliation:
Department of Psychology, University of Milan–Bicocca, andIRCCS Istituto Auxologico Italiano, Milan, Italy. giuseppe.vallar@unimib.ithttp://www.psicologia.unimib.it/03_persone/scheda_personale.php?personId=92
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Abstract

The model presented in the target article includes feature processing and higher representations. I argue, based on neuropsychological evidence, that spatial representations are also involved in perceptual awareness of somatosensory events. Second, there is an asymmetry, with a right-hemisphere–based bilateral representation of the body. Third, the specific aspect of bodily awareness concerning motor function monitoring involves a network that includes the premotor cortex.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 30 , Issue 2 , April 2007 , pp. 223 - 224
Copyright
Copyright © Cambridge University Press 2007

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References

Berti, A., Bottini, G., Gandola, M., Pia, L., Smania, N., Stracciari, A., Castiglioni, I., Vallar, G. & Paulesu, E. (2005) Shared cortical anatomy for motor awareness and motor control. Science 309:488–91.CrossRefGoogle ScholarPubMed
Bisiach, E. & Geminiani, G. (1991) Anosognosia related to hemiplegia and hemianopia. In: Awareness of deficit after brain injury, ed. Prigatano, G. P. & Schacter, D. L., pp. 17–39. Oxford University Press.Google Scholar
Bisiach, E. & Vallar, G. (2000) Unilateral neglect in humans. In: Handbook of neuropsychology, vol. 1, 2nd edition, ed. Boller, F., Grafman, J. & Rizzolatti, G., pp. 459–502. Elsevier Science.Google Scholar
Bottini, G., Bisiach, E., Sterzi, R. & Vallar, G. (2002) Feeling touches in someone else's hand. NeuroReport 13:249–52.CrossRefGoogle ScholarPubMed
Bottini, G., Paulesu, E., Gandola, M., Loffredo, S., Scarpa, P., Sterzi, R., Santilli, I., Defanti, C. A., Scialfa, G., Fazio, F. & Vallar, G. (2005) Left caloric vestibular stimulation ameliorates right hemianesthesia. Neurology 65:1278–83.CrossRefGoogle ScholarPubMed
Bottini, G., Paulesu, E., Sterzi, R., Warburton, E., Wise, R. J. S., Vallar, G., Frackowiak, R. S. J. & Frith, C. D. (1995) Modulation of conscious experience by peripheral stimuli. Nature 376:778–81.CrossRefGoogle Scholar
Cereda, C., Ghika, J., Maeder, P. & Bogousslavsky, J. (2002) Strokes restricted to the insular cortex. Neurology 59:1950–55.CrossRefGoogle Scholar
Gallace, A. & Spence, C. (2007) The cognitive and neural correlates of “tactile consciousness”: A multisensory perspective. Consciousness and Cognition, Mar 28;[Epub ahead of print].Google ScholarPubMed
Karnath, H.-O., Baier, B. & Nägele, T. (2005) Awareness of the functioning of one's own limbs mediated by the insular cortex? Journal of Neuroscience 25:7134–38.CrossRefGoogle ScholarPubMed
Kooistra, C. A. & Heilman, K. M. (1989) Hemispatial visual inattention masquerading as hemianopia. Neurology 39:1125–27.CrossRefGoogle ScholarPubMed
Mesulam, M.-M. (2002) Functional anatomy of attention and neglect: From neurons to networks. In: The cognitive and neural bases of spatial neglect, ed. Karnath, H.-O., Milner, A. D. & Vallar, G., pp. 33–45. Oxford University Press.Google Scholar
Moro, V., Zampini, M. & Aglioti, S. M. (2004) Changes in spatial position of hands modify tactile extinction but not disownership of contralesional hand in two right brain–damaged patients. Neurocase 10:437–43.CrossRefGoogle Scholar
Pia, L., Neppi-Modona, M., Ricci, R. & Berti, A. (2004) The anatomy of anosognosia for hemiplegia: A meta-analysis. Cortex 40:367–77.CrossRefGoogle ScholarPubMed
Ropper, A. H. & Brown, R. H., eds. (2005) Adams and Victor's principles of neurology, 8th edition. McGraw-Hill.Google Scholar
Rossetti, Y. & Rode, G. (2002) Reducing spatial neglect by visual and other sensory manipulations: Non-cognitive (physiological) routes to the rehabilitation of a cognitive disorder. In: The cognitive and neural bases of spatial neglect, ed. Karnath, H.-O., Milner, A. D. & Vallar, G., pp. 375–96. Oxford University Press.Google Scholar
Smania, N. & Aglioti, S. (1995) Sensory and spatial components of somaesthetic deficits following right brain damage. Neurology 45:1725–30.CrossRefGoogle ScholarPubMed
Sterzi, R., Bottini, G., Celani, M. G., Righetti, E., Lamassa, M., Ricci, S. & Vallar, G. (1993) Hemianopia, hemianaesthesia, and hemiplegia after left and right hemisphere damage: A hemispheric difference. Journal of Neurology, Neurosurgery, and Psychiatry 56:308–10.CrossRefGoogle Scholar
Vallar, G., Bottini, G., Rusconi, M. L. & Sterzi, R. (1993) Exploring somatosensory hemineglect by vestibular stimulation. Brain 116:71–86.CrossRefGoogle ScholarPubMed
Vallar, G., Guariglia, C. & Rusconi, M. L. (1997) Modulation of the neglect syndrome by sensory stimulation. In: Parietal lobe contributions to orientation in 3D space, ed. Thier, P. & Karnath, H.-O., pp. 555–78. Springer-Verlag.CrossRefGoogle Scholar
Vallar, G. & Papagno, C. (2003) Pierre Bonnier's (1905) cases of bodily “aschématie.” In: Classic cases in neuropsychology, vol. 2, ed. Code, C., Wallesch, C.-W., Joanette, Y. & Lecours, A. R., pp. 147–70. Psychology Press.Google Scholar
Vallar, G. & Ronchi, R. (2006) Anosognosia for motor and sensory deficits after unilateral brain damage: A review. Restorative Neurology and Neuroscience 24:247–57.Google ScholarPubMed