We recorded hippocampal place cells in two spatial environments: a training environment in which rats underwent fear conditioning and a neutral control environment. Fear conditioning caused many place cells to alter (or remap) their preferred firing locations in the training environment, whereas most cells remained stable in the control environment. This finding indicates that aversive reinforc...

Volitional behavior relies on the brain's ability to remap sensory flow to motor programs whenever demanded by a changed behavioral context. To investigate the circuit basis of such flexible behavior, we have developed a biophysically based decision-making network model of spiking neurons for arbitrary sensorimotor mapping. The model quantitatively reproduces behavioral and prefrontal single-ce...

Abstract This work investigates novel alternative means of interaction in a virtual environment (VE). We analyze whether humans can remap established body functions to learn to interact with digital information in an environment that is cross-sensory by nature and uses vocal utterances in order to influence (abstract) virtual objects. We thus establish a correlation among learning, control of t...

The results from numerical simulations carried out using a new shock-capturing, Lagrangian-remap, 3D MHD code, Lare3d are presented. We study the evolution of the m = 1 kink mode instability in a photospherically line-tied coronal loop that has no net axial current. During the non-linear evolution of the kink instability, large current concentrations develop in the neighbourhood of the infinite...

A bulk synchronous computation proceeds in phases that are separated by barrier synchronization. For dynamic bulk synchronous computations that exhibit varying phase-wise computational requirements, remapping at run-time is an effective approach to ensure parallel efficiency. This paper introduces a novel remapping strategy for computations whose workload changes can be modeled as a Markov chai...

An effective second-order three-dimensional unstructured multimaterial arbitrary Lagrangian– Eulerian (MMALE) method was presented for compressible fluid dynamics, which uses Moment of Fluid (MOF) method to reconstruct material interface for immiscible fluids. It is of the explicit time-marching Lagrange plus remap type. Comparing with traditional ALE method, MMALE method permits multimaterials...

Applications with varying array access patterns in a parallel distributed memory machine require to dynamically change array mappings. Hpf (High Performance Fortran) provides such remappings, possibly on partially replicated data, explicitly through the realign and redistribute directives and implicitly at procedure calls and returns. However such features are left out of the hpf subset or of t...

A high-order monotone and conservative Cascade Remapping algorithm between Spherical grids (CaRS) is developed. This algorithm is specifically designed to remap between the cubed-sphere and regular latitude-longitude grids. The remapping approach is based on the conservative cascade method in which a two-dimensional remapping problem is split into two one-dimensional problems. This allows for e...

As process scaling continues, DRAM is getting more vulnerable to errors. System companies and vendors have introduced ECC protect against growing ECC, however, should be combined with a repair mechanism prevent non-transient faults from repeatedly producing errors overlapping accumulating into severe We propose novel approach memory improve reliability minimal overheads. On-die Dynamic Remappin...

Abstract When exploring new environments animals form spatial memories that are updated with experience and retrieved upon re-exposure to the same environment. The hippocampus is thought support these memory processes, but how this achieved by different subnetworks such as CA1 CA3 remains unclear. To understand hippocampal representations emerge evolve during familiarization, we performed 2-pho...