Prism Adaptation Improves Chronic Visual and Haptic Neglect: A Single Case Study

Long-term sensorimotor and therapeutical effects of a mild regime of prism adaptation in spatial neglect. A double-blind RCT essay

“…For VSA and OLP, on the other hand, patients' performances are not easily reproducible from one pre-test to the next. Even though SN is primordially considered as a visually manifested pathology, the reliability of the above-mentioned proprioceptive measurement can be linked to somesthetic manifestations of the syndrome [22][23][24]. It can likewise be linked to the leftward somesthetic effects also observed after PA in healthy subjects [65,66].…”

“…Its effects involve a wide range of perceptual, cognitive and motor functions that are affected in SN (see reviews: [15][16][17][18]): visual neglect [19][20][21], somatosensory [22] and haptic [23] neglect, tactile extinction [24], auditory extinction [25], representational neglect [26,27], numerical representations [28] and writing [29] or wheelchair movement [30,31]. Beneficial effects on postural imbalance have likewise been observed in patients following clinical SN remission [32].…”

Modulation of visual attention by prismatic adaptation

“…Without fixed anatomical landmark, the term is used to designate the gathering of IPL and STG (e. g. Corbetta and Shulman 2011) or the part of IPL next to the junction with the temporal lobe (i. e. without STG; e. g. Karnath et al 2009, Karnath andRorden 2012). on wheel-chair navigation (Jacquin-Courtois et al, 2008), postural control (Nijboer et al, 2014), mental imagery (Rode et al, 2001, haptic spatial judgments (McIntosh et al, 2002), accuracy and response times in pre-attentive visual search (Saevarsson et al, 2009), tactile attention (Maravita et al, 2003), and auditory extinction (Jacquin-Courtois et al, 2010) as well as activities much closer to daily living, such as picture scanning, telephone dialing, and coin and card sorting (Frassinetti et al, 2002). Visuo-constructive disorders and spatial dysgraphia have also been improved by rightward PA , as was temporal order judgment .…”

Effets sensori-moteurs et fonctionnels à long terme d’un traitement hebdomadaire par adaptation prismatique dans la négligence : un essai randomisé et contrôlé en double insu

“…Ses effets recouvrent un trè s large panel de fonctions perceptives, cognitives ou motrices affecté es dans la NS [15][16][17][18] : la né gligence visuelle [19][20][21], la né gligence somatosensorielle [22] et haptique [23], l'extinction tactile [24], l'extinction auditive [25], la né gligence repré sentationnelle [26,27], des repré sentations numé riques [28] ainsi que l'é criture [29], ou le dé placement en fauteuil roulant [30,31]. Des bé né fices ont é galement é té observé s sur le dé sé quilibre postural chez des patients aprè s ré mission clinique de leur NS [32].…”