Does foraging change across the life span, and in particular, with aging? We report data from two foraging tasks used to investigate age differences in search in external environments as well as internal search in memory. Overall, the evidence suggests that foraging behavior may undergo significant changes across the life span across internal and external search. In particular, we find evidence...

The minimum intervention principle and the uncontrolled manifold hypothesis state that our nervous system only responds to force perturbations and sensorimotor noise if they affect task success. This idea has been tested in muscle and joint coordinate frames and more recently using workspace redundancy (e.g., reaching to large targets). However, reaching studies typically involve spatial and or...

When movements are perturbed in adaptation tasks, humans and other animals show incomplete compensation, tolerating small but sustained residual errors that persist despite repeated trials. State-space models explain this residual asymptotic error as interplay between learning from error and reversion to baseline, a form of forgetting. Previous work using zero-error-clamp trials has shown that ...

The Sesame system-level simulation framework targets efficient design space exploration of embedded multimedia systems. Even despite Sesame’s efficiency, it would fail to explore large parts of the design space simply because system-level simulation is too slow for this. Therefore, Sesame uses analytical performance models to provide steering to the system-level simulation, guiding it toward pr...

This paper describes the tight integration of design space exploration with spatial and temporal partitioning algorithms in the SPARCS design automation system for RCs. In particular, this paper describes a novel technique to perform efficient design space exploration of parallel-process behaviors using the knowledge of spatial partitioning. The exploration technique satisfies the design latenc...

1. We propose a technique for test scheduling and design of test bus infrastructure where test application time and test bus length and width are minimized while constraints on power consumption and test resources are considered. Our approach is suitable for repeated use in the design space exploration process due to its low computational cost. For the final design, we use simulated annealing t...

This chapter focuses on resource management techniques for performance or energy optimization in multi-/many-core systems. First, it gives a comprehensive overview about resource management in a broad perspective. Secondly, it discusses the possible optimization goals and constraints of resource management techniques: computational performance, power consumption, energy consumption, and tempera...

This paper presents an Integrated Framework of Design Optimization and Space Minimization (IDOM) for generating the minimum number of functional units with schedule length and memory constraints. Our algorithm efficiently prunes the search space, and eliminates inferior design points by the following: 1) selecting a minimum set of candidate unfolding factors, 2) integrating optimization techniq...

Individual behavior, in biology, economics, and computer science, is often described in terms of balancing exploration and exploitation. Foraging has been a canonical setting for studying reward seeking and information gathering, from bacteria to humans, mostly focusing on individual behavior. Inspired by the gradient-climbing nature of chemotaxis, the infotaxis algorithm showed that locally ma...