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See detailAn independent SSVEP-based brain-computer interface in locked-in-syndrome
Lesenfants, Damien ULg; Habbal, Dina; Lugo et al

in Journal of Neural Engineering (2014)

OBJECTIVE: Steady-state visually evoked potential (SSVEP)-based brain-computer interfaces (BCIs) allow healthy subjects to communicate. However, their dependence on gaze control prevents their use with ... [more ▼]

OBJECTIVE: Steady-state visually evoked potential (SSVEP)-based brain-computer interfaces (BCIs) allow healthy subjects to communicate. However, their dependence on gaze control prevents their use with severely disabled patients. Gaze-independent SSVEP-BCIs have been designed but have shown a drop in accuracy and have not been tested in brain-injured patients. In the present paper, we propose a novel independent SSVEP-BCI based on covert attention with an improved classification rate. We study the influence of feature extraction algorithms and the number of harmonics. Finally, we test online communication on healthy volunteers and patients with locked-in syndrome (LIS). APPROACH: Twenty-four healthy subjects and six LIS patients participated in this study. An independent covert two-class SSVEP paradigm was used with a newly developed portable light emitting diode-based 'interlaced squares' stimulation pattern. MAIN RESULTS: Mean offline and online accuracies on healthy subjects were respectively 85 ± 2% and 74 ± 13%, with eight out of twelve subjects succeeding to communicate efficiently with 80 ± 9% accuracy. Two out of six LIS patients reached an offline accuracy above the chance level, illustrating a response to a command. One out of four LIS patients could communicate online. SIGNIFICANCE: We have demonstrated the feasibility of online communication with a covert SSVEP paradigm that is truly independent of all neuromuscular functions. The potential clinical use of the presented BCI system as a diagnostic (i.e., detecting command-following) and communication tool for severely brain-injured patients will need to be further explored. [less ▲]

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See detailIndependent value of the 67-kilodalton laminin receptor in human prostate cancer
Waltregny, David ULg; de Leval, Laurence ULg; Ménard, Sylvie et al

Conference (1997, January 17)

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See detailIndependent value of the 67-kilodalton laminin receptor in human prostate cancer
Waltregny, David ULg; de Leval, Laurence ULg; Ménard, Sylvie et al

in Acta Clinica Belgica (1997), 52(2), 93

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See detailIndex and References
Berthé, Valérie; Rigo, Michel ULg

in Combinatorics, Automata and Number Theory (2010)

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See detailIndex de gravité chez les brûlés
Micheels, Jean ULg; Lamy, Maurice ULg

in Annales de l'Anesthésiologie Française (1980), 21(3), 276-280

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See detailIndex de gravité de la fonction rénale. A propos de 85 cas de résection d'anévrysme de l'aorte abdominale
Radermacher, E.; Lamy, Maurice ULg

in Annales de l'Anesthésiologie Française (1980), 21(3), 257-258

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See detailIndex de gravité de la fonction ventilatoire. A propos de 380 cas de traumatismes thoraciques graves
Brunain, J. P.; Lamy, Maurice ULg

in Annales de l'Anesthésiologie Française (1980), 21(3), 267-270

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See detailIndex de la pharmacopée latine du Ier au Xe siècle
Opsomer, Carmélia ULg

Book published by Georg Olms (1989)

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See detailIndex des formes
Baiwir, Esther ULg

in Boutier, Marie-Guy; Lechanteur, Jean; Counet, Marie-Thérèse (Eds.) Atlas linguistique de la Wallonie. Tome 6. La terre, les plantes et les animaux (2006)

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See detailIndex du «Corpus hermeticum»
Delatte, Louis; Govaerts, Suzanne; Denooz, Joseph ULg

Book published by Edizioni dell'Ateneo e Bizzarri (1977)

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See detailIndex étymologique
Baiwir, Esther ULg

in Boutier, Marie-Guy; Lechanteur, Jean; Counet, Marie-Thérèse (Eds.) Atlas linguistique de la Wallonie. Tome 6. La terre, les plantes et les animaux (2006)

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See detailIndex magazine Blues & Rhythm - The Gospel Truth
Sacré, Robert ULg

Book published by Blues & Rhythm (1993)

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See detailIndex of local response to geomagnetic activity for use in the short-term ionospheric forecast
Stankov, Stanimir; Jakowski, Norbert; Wehrenpfenning, A. et al

in Proceedings of the COST271 2002 workshop (2002, October)

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See detailIndex onomasiologique de l’Atlas linguistique de la Wallonie
Baiwir, Esther ULg

in Bulletin de la Commission Royale de Toponymie et de Dialectologie = Handelingen van de Koninklijke Commissie voor Toponymie en Dialectologie (2012), LXXXIV

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See detailUn index sélectif d’un texte philosophique. Husserl, Die Idee der Phänomenologie
Evrard, Etienne ULg; Purnelle, Gérald ULg

in Revue. Informatique et Statistique dans les Sciences Humaines (1992)

To assist the content analysis of a philosophical text, we have created a method of constituting both a selective index reduced to philosophically significant words and several frequency lists. We have ... [more ▼]

To assist the content analysis of a philosophical text, we have created a method of constituting both a selective index reduced to philosophically significant words and several frequency lists. We have applied this method to Die Idee der Phenomenologie where Husserl explains for the first time his theory of the phenomenological reduction and of the constitution of the objects in the conscience. The results proved to be valuable for the philosophical interpretation. [less ▲]

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See detailL'indexation de l'allocation pour l'aide d'une tierce personne : deux lectures distinctes pour un même problème.
Michiels, Olivier ULg

in Revue Générale des Assurances et des Responsabilités (2001)

L'article s'attache à cerner la jurisprudence divergente de la Cour de cassation et de la Cour d'arbitrage - devenue constitutionnelle - relative à l'indexation de l'allocation pour l'aide d'une tierce ... [more ▼]

L'article s'attache à cerner la jurisprudence divergente de la Cour de cassation et de la Cour d'arbitrage - devenue constitutionnelle - relative à l'indexation de l'allocation pour l'aide d'une tierce personne. [less ▲]

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See detailIndexation du debit de filtration glomerulaire par la surface corporelle : mythe et realite
Delanaye, Pierre ULg; Mariat, Christophe; Cavalier, Etienne ULg et al

in Néphrologie & Thérapeutique (2009), 5(7), 614-22

Indexing glomerular filtration rate (GFR) for body surface area (BSA) is often realized without arising any questions. However, physiological basis for such an indexation are very poor. Indeed, indexing ... [more ▼]

Indexing glomerular filtration rate (GFR) for body surface area (BSA) is often realized without arising any questions. However, physiological basis for such an indexation are very poor. Indeed, indexing GFR for BSA to avoid variation due to differences in body size necessarily implies that GFR is a linear function of BSA and that the intercept of this linear function is zero. Moreover, when GFR is indexed for BSA, the relation indexed GFR-BSA must completely disappear. These physiological prerequisites are not found for BSA indexation. We will review the history of this indexation and will underline errors and defaults. Different equations to estimate BSA exist and will be discussed. The choice of "1.73m(2)" will be also criticized. Moreover, indexing GFR for BSA has little impact on GFR results in "normal" body size population. Nevertheless, this indexation will have strong consequences in very lean (such as anorexia) and in obese patients. We will discuss possible alternatives proposed to substitute for BSA indexation. [less ▲]

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See detailIndexation du DFG pour la surface corporelle: mythe et réalité.
Delanaye, Pierre ULg

Conference given outside the academic context (2008)

Detailed reference viewed: 26 (4 ULg)