Several studies have examined the neural effects of working memory practice, but due to different task demands, diverse patterns of neural changes have been reported. In the present study, we examined neural effects of practice using a task with different working memory demands within a single practice paradigm. Fifteen adults practiced during 6weeks with a task that required maintenance and ma...

In single-access surgery, instruments enter the abdominal cavity through only 1 incision, the position of the instruments relative to each other is different compared with that in conventional laparoscopy. Changes in instrument configuration may increase task complexity and therefore affect tissue handling skills. The aim of this study is to determine if a relation exists between instrument con...

one of the major criticisms leveled at task-based language teaching (tblt), despite its countless merits, is developing fluency at the cost of accuracy. the post-task stage affords a number of options to counteract this downside through task repetition and task recycling. these two options are considered to positively affect learners' oral performance in terms of fluency, accuracy, and complexi...

We present a method for one-handed task based manipulation of objects. Our approach uses a mid-level multiphase approach to break the problem into three parts, providing an appropriate control strategy for each phase and resulting in cyclic finger motions that accomplish the task. All motion is physically based, and guided by a policy computed for a particular task. The exact trajectory is neve...

In this paper, we introduce 3D-viewer-based teleoperation system for manipulation task of Human Support Robot HSR. The system is integrated by three functions; 3D environment information visualization based on Manhattan-world assumption, known object recognition using LINE-MOD algorithm, and virtual teaching with 3D robot model using interactive marker. We show some experimental results of mani...

We present a task-centered formal analysis of the relative power several robot designs, inspired by unique properties and constraints micro-scale robotic systems. Our task interest is object manipulation because it fundamental prerequisite for more complex applications such as assembly or cell manipulation. Motivated difficulty in observing controlling agents at micro-scale, we focus on design ...

Manipulation tasks are sequential in nature. Depending on the specific task constraints, more than one solution usually exist. Even for simple objects, several candidate grasps can be considered, each of which can potentially be used to plan the required arm motions. Grasp selection approaches that take into account the constraints at each task step are critical, since they allow to both identi...

This paper presents a method for discrete event controller (DEC) synthesis for a manipulation task modeled as a hybrid dynamic system (HDS). The modelling of a manipulation task as a HDS has been shown to be a very eeective strategy to incorporate the interaction of the robot manipulator with its environment. In addition, this modelling has allowed the derivation of realistic conditions on the ...

OBJECTIVE To investigate the impact of experimentally manipulated state anxiety and the influence of anxiety-related variables on children's memories for pain. METHODS A total of 110 children (60 boys) between the ages of 8 and 12 years were randomly assigned to complete a state anxiety induction task or a control task. Following experimental manipulation, children completed a laboratory pain...

Complex manipulation tasks in uncontrolled environments are challenged with errors from multiple sources that can prevent successful completion. We describe a framework for the decomposition of a complex task into behaviors for a supervisor controlled robot. A classification of behaviors based on the actors and dominant motion is used to analyze the success rate. Three methods to improve robust...