Intrinsic motivations play an important role in human learning, particularly in the early stages of childhood development, and ideas from this research field have influenced robotic learning and adaptability. In this paper we investigate one specific type of intrinsic motivation, that of novelty detection and we discuss the reasons that make it a powerful facility for continuous learning. We fo...

Working memory deficits in schizophrenia are key cognitive features of the disorder and have been demonstrated to involve a circuit of brain regions. Here we model this circuitry with a connectionist model representing 3 key processing areas of the circuitry: anterior cingulate gyrus (ACG), dorsal lateral prefrontal cortex (DLPFC), and parietal cortex. The model adapts to a stream of unique inp...

Abstract. We consider a non-relativistic electron interacting with a classical magnetic field pointing along the x3-axis and with a quantized electromagnetic field. The system is translation invariant in the x3-direction and we consider the reduced Hamiltonian H(P3) associated with the total momentum P3 along the x3-axis. For a fixed momentum P3 sufficiently small, we prove that H(P3) has a gro...

Adenophostins A and B, which are metabolic products of the fungus Penicillium brevicompactum, are potent agonists at the D-myo-inositol-1,4,5-trisphosphate [Ins(1,4,5)P3] receptor. In the current study, adenophostin A was approximately 50-fold more potent than Ins(1,4,5)P3 at both releasing Ca2+ from the intracellular stores of permeabilized platelets and displacing [3H]Ins(1,4,5)P3 from its re...

with respect to the process of creation of novelty among economists; that’s why schumpeter has used the term “impossible” in regard to this unknowable process. this is a right term, since this subject matter can’t be incorporated within the theoretical framework determined by orthodox conceptual rationality. considering the importance and necessity of the creation of novelty for the process of ...

Z. Naturforsch. 56 b, 1257-1263 (2001); received September 11, 2001 Gold(I) Complexes, Tri(tertiary phosphine) Complexes, Thiolate Complexes Treatment of the ligand l,3,5-tris[(diphenylphosphanyl)methyl]trimethylbenzene (P3) with (tetrahydrothiophene)gold(I) chloride results in the symmetrical trigold complex [(P3)(AuC1)3]. In the presence of sodium methoxide, [(P3)(AuC1)3] reacts with thiocres...