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- G. A. Orban, Patrick Dupont, Bart De Bruyn, R. Vandenberghe, Annemie Rosier, Luc Mortelmans
- Experimental Brain Research
- 1998

The regional cerebral blood-flow (rCBF) pattern of the human brain was measured using positron emission tomography (PET) while subjects viewed, detected, judged the speed of a moving random dot pattern (RDP) or compared speeds of successive RDPs. In all four conditions, retinal input was identical. Two additional conditions, continuous presentation of a… (More)

- Bart De Bruyn
- Eur. J. Comb.
- 1999

- Bart De Bruyn
- Discrete Mathematics
- 2009

- Ilaria Cardinali, Bart De Bruyn, Antonio Pasini
- Discrete Mathematics
- 2009

Let ∆ be a dual polar space of rank n ≥ 4, H be a hyperplane of ∆ and Γ := ∆ \ H be the complement of H in ∆. We shall prove that, if all lines of ∆ have more than 3 points, then Γ is simply connected. Then we show how this theorem can be exploited to prove that certain families of hyperplanes of dual polar spaces, or all hyperplanes of certain dual polar… (More)

Let be a thick dual polar space of rank n ≥ 2 admitting a full polarized embedding e in a finite-dimensional projective space , i.e., for every point x of , e maps the set of points of at non-maximal distance from x into a hyperplane e∗(x) of . Using a result of Kasikova and Shult [11], we are able the show that there exists up to isomorphisms a unique full… (More)

- Bart De Bruyn, Antonio Pasini
- Electr. J. Comb.
- 2007

Cooperstein [6], [7] proved that every finite symplectic dual polar space DW (2n− 1, q), q = 2, can be generated by 2n n − 2n n−2 points and that every finite Hermitian dual polar space DH(2n − 1, q 2), q = 2, can be generated by 2n n points. In the present paper, we show that these conclusions remain valid for symplectic and Hermitian dual polar spaces… (More)

- Bart De Bruyn, Antonio Pasini
- Eur. J. Comb.
- 2007

Let n ≥ 3 and let F be a field of characteristic 2. Let DSp(2n, F) denote the dual polar space associated with the building of Type C n over F and let G n−2 denote the (n − 2)-Grassmannian of type C n. Using the bijective correspondence between the points of G n−2 and the quads of DSp(2n, F), we construct a full projective embedding of G n−2 into the… (More)

- BART DE BRUYN
- Vision Research
- 1997

Human observers are very good at segmenting visual scenes consisting of multiple moving objects. Segregation of transparent motions, however, turns out to be a predominantly central vision process. In peripheral vision transparent motions are blended to form a single novel pattern whose coherent motion corresponds to the average of the separate motions,… (More)