Massive somatic deafferentation and motor deefferentation of the lower part of the body impair its visual recognition: a psychophysical study of patients with spinal cord injury

European Journal of Neuroscience - Tập 36 Số 11 - Trang 3509-3518 - 2012
Simone Pernigo1, Valentina Moro1, Renato Avesani2, C Sosa Miatello1, Cosimo Urgesi3, Salvatore Maria Aglioti4,5
1Department of Philosophy, Pedagogy and Psychology, University of Verona, Lungadige Porta Vittoria 17, 37129 Verona, Italy
2Department of Rehabilitation, Sacro Cuore, Don Calabria Hospital, Negrar (VR), Italy
3Department of Human Sciences, University of Udine and IRCCS E. Medea, Polo Friuli Venezia Giulia, San Vito al Tagliamento, Pordenone, Italy
4Department of Psychology, University of Rome “La Sapienza”, Via dei Marsi, 78, 00185 Rome, Italy
5IRCCS Fondazione Santa Lucia, via Ardeatina 354, 00179, Rome, Italy

Tóm tắt

AbstractEmbodied cognition theories postulate that perceiving and understanding the body states of other individuals are underpinned by the neural structures activated during first‐hand experience of the same states. This suggests that one’s own sensorimotor system may be used to identify the actions and sensations of others. Virtual and real brain lesion studies show that visual processing of body action and body form relies upon neural activity in the ventral premotor and the extrastriate body areas, respectively. We explored whether visual body perception may also be altered in the absence of damage to the above cortical regions by testing healthy controls and spinal cord injury (SCI) patients whose brain was unable to receive somatic information from and send motor commands to the lower limbs. Participants performed tasks investigating the ability to visually discriminate changes in the form or action of body parts affected by somatosensory and motor disconnection. SCI patients showed a specific, cross‐modal deficit in the visual recognition of the disconnected lower body parts. This deficit affected both body action and body form perception, hinting at a pervasive influence of ongoing body signals on the brain network dedicated to visual body processing. Testing SCI patients who did or did not practise sports allowed us to test the influence of motor practice on visual body recognition. We found better upper body action recognition in sport‐practising SCI patients, indicating that motor practice is useful for maintaining visual representation of actions after deafferentation and deefferentation. This may be a potential resource to be exploited for rehabilitation.

Từ khóa


Tài liệu tham khảo

10.3200/JMBR.39.5.353-368

10.1068/p5340

10.1016/j.tics.2010.12.003

10.1038/nn.2182

10.1523/JNEUROSCI.0379-10.2010

10.1146/annurev.psych.093008.100503

10.1016/j.cub.2011.09.048

10.1523/JNEUROSCI.23-11-04689.2003

10.1016/j.cub.2007.11.045

10.1093/cercor/bhs040

10.1006/nimg.2001.1029

10.1146/annurev.psych.59.103006.093639

10.1007/s00221-009-1970-7

10.1038/nn1535

10.1016/j.neuropsychologia.2006.06.018

10.1523/JNEUROSCI.0911-10.2010

10.1111/j.1460-9568.2001.01385.x

10.1016/j.cub.2006.07.065

10.1080/17470910701676269

10.1016/j.cub.2005.10.071

10.1111/j.1460-9568.2007.05532.x

10.1016/j.brainres.2006.06.044

10.1016/j.neuron.2004.12.009

10.1523/JNEUROSCI.5463-10.2010

10.1038/nn1873

10.1016/j.neuropsychologia.2008.04.015

10.1016/j.bandc.2010.05.001

10.1073/pnas.262669099

10.1093/cercor/bhi053

10.1093/brain/awh648

10.1007/s00221-006-0662-9

10.1016/j.cortex.2011.11.006

10.1016/j.neuroimage.2006.01.033

10.1093/cercor/bhn083

10.1038/sc.1994.13

10.1126/science.1063414

10.1080/17470910600668854

10.1007/s00221-008-1465-y

10.1093/brain/awp118

10.1016/j.neuropsychologia.2012.02.005

10.1523/JNEUROSCI.1783-11.2011

10.1093/brain/awh630

10.1111/j.1460-9568.2011.07895.x

10.1093/brain/awr093

10.1111/j.1469-7793.1999.609ae.x

10.1016/j.tins.2010.11.003

10.1016/S0896-6273(02)00897-8

10.1152/physrev.00041.2007

10.1016/j.cub.2010.05.068

10.1523/JNEUROSCI.2717-10.2011

10.1016/j.neuroimage.2007.07.065

10.1177/1545968310389184

10.1371/journal.pbio.0030079

10.3109/09638280903437246

10.1179/204577211X13207446293695

10.1089/neu.2008.0688

10.1016/j.neuron.2008.09.022

10.1177/1073858408331375

10.1093/brain/awg063

10.3758/BF03212075

10.1016/j.cub.2008.09.061

10.1038/nrn2195

10.1016/j.neuron.2006.02.004

10.1155/2009/104180

10.1016/j.cub.2006.01.033

10.1038/nn1978

10.1016/j.neuroimage.2004.04.024

10.1111/1467-9280.14431

10.1037/0096-1523.32.1.73

10.1016/S1388-2457(01)00725-8

10.1016/j.neures.2009.05.003

10.1162/jocn.2009.21206

10.1523/JNEUROSCI.2129-05.2005

Townsend J.T., 1983, The Stochastic Modeling of Elementary Psychological Processes

10.1523/JNEUROSCI.4415-07.2008

10.1016/j.cub.2004.11.031

10.1523/JNEUROSCI.0789-07.2007

10.1038/nn1815

10.1007/s00426-011-0383-y

10.1038/sc.1991.85

10.1523/JNEUROSCI.1953-11.2012

10.1037/0033-2909.131.3.460

10.1093/cercor/bhn072

10.1037/a0017451

Thông tin
Thông tin xuất bản

European Journal of Neuroscience

Tập 36 Số 11

3509-3518

Thông tin tác giả