caa a22 4500 445353236 CHVBK 20180317142851.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00221-011-2593-3 doi (NATIONALLICENCE)springer-10.1007/s00221-011-2593-3 Integration of proprioceptive signals and attentional capacity during postural control are impaired but subject to improvement in dyslexic children [Elektronische Daten] [Patrick Quercia, Laurent Demougeot, Mickaël Dos Santos, François Bonnetblanc] Children with developmental dyslexia suffer from delayed reading capabilities and may also exhibit attentional and sensori-motor deficits. The objective of this study was twofold. First, we aimed at investigating whether integration of proprioceptive signals in balance control was more impaired in dyslexic children when the attentional demand was varied. Secondly, we checked whether this effect was reduced significantly by using a specific treatment to improve eye control deficits and certain postural signs that are often linked to dyslexia (Quercia et al. in J Fr Ophtalmol 28:713-723, 2005, J Fr Ophtalmol 30:380-89, 2007). Thirty dyslexic and 51 treated dyslexic children (>3months of treatment) were compared with 42 non-dyslexic children in several conditions (mean age: 136.2±23.6, 132.2±18.7 and 140.2±25months, respectively). Co-vibration of ankle muscles was effected in order to alter proprioceptive information originating from the ankle. In two vibration conditions, ankle muscles were either not vibrated or vibrated at 85Hz without illusion of any movement. These two vibration conditions were combined with two attentional conditions. In the first such condition, children maintained balance while merely fixing their gaze on a point in front of them. In the second condition, they had to look for smaller or larger stars in a panel showing forty of each kind. Balance was assessed by means of a force plate. Results indicated that the mean velocity (i.e. the total length) of the center of pressure (CoP) displacement in the 85-Hz vibration condition increased significantly more (compared with no vibration) in the dyslexic and the treated dyslexic groups than in the control group, irrespective of the attention task. Interestingly, in the condition without vibration, the attentional performance of treated children was similar to that of the control group, whereas the attentional performance of the untreated dyslexic children was significantly impaired. Altogether, these results suggest that integration of proprioceptive signals in balance control and attentional capacity are impaired in dyslexic children. However, attention capacity during the control of stance could be improved significantly. Springer-Verlag, 2011 Dyslexia nationallicence Postural control nationallicence Proprioception nationallicence Vibration nationallicence Attention nationallicence Quercia Patrick Département d'Ophtalmologie, CHU, Dijon, France aut Demougeot Laurent INSERM U887 Motricité-Plasticité, Université de Bourgogne, Dijon, France aut Dos Santos Mickaël INSERM U887 Motricité-Plasticité, Université de Bourgogne, Dijon, France aut Bonnetblanc François INSERM U887 Motricité-Plasticité, Université de Bourgogne, Dijon, France aut Experimental Brain Research Springer-Verlag 209/4(2011-04-01), 599-608 0014-4819 209:4<599 2011 209 221 https://doi.org/10.1007/s00221-011-2593-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00221-011-2593-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Quercia Patrick Département d'Ophtalmologie, CHU, Dijon, France aut NATIONALLICENCE 700 1- Demougeot Laurent INSERM U887 Motricité-Plasticité, Université de Bourgogne, Dijon, France aut NATIONALLICENCE 700 1- Dos Santos Mickaël INSERM U887 Motricité-Plasticité, Université de Bourgogne, Dijon, France aut NATIONALLICENCE 700 1- Bonnetblanc François INSERM U887 Motricité-Plasticité, Université de Bourgogne, Dijon, France aut NATIONALLICENCE 773 0- Experimental Brain Research Springer-Verlag 209/4(2011-04-01), 599-608 0014-4819 209:4<599 2011 209 221 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer