A predictive component can contribute to the command signal for smooth pursuit. This is readily demonstrated by the fact that low frequency sinusoidal target motion can be tracked with zero time delay or even with a small lead. The objective of this study was to characterize the predictive contributions to pursuit tracking more precisely by developing analytical models for predictive smooth pur...

Feature-based attention enhances visual processing and improves perception, even for visual features that we are not aware of. Does feature-based attention also modulate motor behavior in response to visual information that does or does not reach awareness? Here we compare the effect of feature-based attention on motion perception and smooth-pursuit eye movements in response to moving dichoptic...

Direction of arrival (DOA) estimation is a sparse reconstruction problem. However, conventional orthogonal matching pursuit (OMP) may fail to identify the correct atoms since the redundant dictionary composed of the direction vectors is highly coherent. To mitigate the coherence problem, in this paper, we propose a modified OMP by constructing data dependent sensing dictionary for sparse recons...

We investigated the composition of preparatory activity of frontal eye field (FEF) neurons in monkeys performing a pursuit target selection task. In response to the orthogonal motion of a large and a small reward target, monkeys initiated pursuit biased toward the direction of large reward target motion. FEF neurons exhibited robust preparatory activity preceding movement initiation in this tas...

Significant attention has been devoted to developing intersectoral strategies to reduce health inequities; however, these strategies have largely neglected to consider how equity in health ought to be weighted and balanced with the pursuit of equity for other social goods (eg, education equity). Research in this domain is crucial, as the health sector’s pursuit of health equity may be at odds w...

to evaluate integrated weed management on yield and weed biomass of bean an experiment were conducted as a split plot based on randomized complete block design with three replications at the research station of agriculture  in damavand in 2014.main plot of the mechanical control (cultivation)levels including the application and no application of cultivator and sub-plots chemical control levels ...

The ability to analyze patterns of recorded seizure activity is important in the localization and classiication of seizures. The fact that ictal evolution is typically a dynamic and nonstationary process with signals composed of multiple frequencies can limit or complicate visual and other methods of analysis. The recently developed matching pursuit algorithm permits continuous time-frequency d...

In this paper we present a new type of multivariate GARCH model which we call the composed MGARCH and factor composed MGARCH models. We show sufficient conditions for the covariance stationarity of these processes and proof of the invariance of the models under linear combinations, an important property for factor modeling. Furthermore, we introduce an α-stable version of these models and fit a...

This paper presents an algorithm for path following applications represented by grid decomposition in order to provide smooth tracking. In the first stage, the method calculates the corners that define the path based on a vision algorithm proposed by [2], so a new reference trajectory is composed of a sequence of straight lines. Then, the reference path is divided into a set of equispaced point...

Due to its simplicity and efficiency, the pure-pursuit path tracking method has been widely employed for planned navigation of nonholonomic ground vehicles. In this paper, we investigate the application of this technique for reactive tracking of paths that are implicitly defined by perceived environmental features. Goal points are obtained through an efficient interpretation of range data from ...