It is becoming more clear that normal age-related cognitive decline is characterized not so much by significant cell loss in memory-related brain structures like the hippocampus, but rather by a change in the functional organization of information processing of its neural elements. Consequently, investigations of the changes in neural plastic abilities of the aged brain represent an approach th...

In this paper, we introduce q-analogues of the Barnes multiple zeta functions. We show that these functions can be extended meromorphically to the whole plane, and moreover, tend to the Barnes multiple zeta functions when q ↑ 1 for all complex numbers. 2000 Mathematics Subject Classification : Primary 11M41, 11M35

The short-distance assymptotics of the τ-function associated to the 2-point function of the two-dimensional Ising model is computed as a function of the integration constant defined from the long-distance behavior of the τ-function. The result is expressible in terms of the Barnes double gamma function (equivalently, the Barnes G-function).

We present a computational model of approach learning in a T-maze environment. We show that our model learns the correct sequence of six decisions that lead to the location of positive reinforcement and in a manner consistent with experimental observations. Our model exhibits many properties that are characteristic of animal learning in maze environments including delay conditioning, secondary ...