We investigate the effects of variations in response requirements on BOLD activation in a visual oddball task and consider implications for fMRI task designs. Sixteen healthy subjects completed 3 runs of a visual oddball task: passive, count and respond. Besides expected activation patterns during passive viewing, we identified joint activations, but more importantly crucial differences between...

The completion of an antisaccade (i.e., a nonstandard task) lengthens the reaction time (RT) of a subsequent prosaccade: a behavioral phenomenon termed the unidirectional prosaccade switch-cost. One explanation for the unidirectional prosaccade switch-cost is suppressing a stimulus-driven prosaccade during the preceding antisaccade trial engenders a residual inhibition of the oculomotor network...

Cerebral patterns of activity elicited by dual-task performance throughout the learning of a complex bimanual coordination pattern were addressed. Subjects (N=12) were trained on the coordination pattern and scanned using fMRI at early (PRE) and late (POST) learning stages. During scanning, the coordination pattern was performed either as a single task or in concurrence with a simultaneous visu...

Abstract Task planning is a crucial component in facilitating robot multi-task manipulations. Language-based task methods offer practicality receiving commands from humans real-life scenarios and require only low-cost labeled data. However, existing often rely on sequence models for planning, which primarily focus mapping language to sequences of sub-tasks while neglecting the knowledge about t...

Abstract Writing on-demand, text-based analytical essays is a challenging skill to master. Novice writers, such as the sixth grade US students in this study, may lack background knowledge of how compose an effective essay, self-efficacy skills, and goal setting skills that will help with completing task accomplished ways. This sequential mixed-method study explored impact guiding predominantly ...

In conformant probabilistic planning (CPP), we are given a set of actions with stochastic effects, a distribution over initial states, a goal condition, and a value 0 < p ≤ 1. Our task is to find a plan π such that the probability that the goal condition holds following the execution of π in the initial state is at least p. In this paper we focus on the problem of CPP with deterministic actions...

Previous research has demonstrated that nontool-using primates are capable of sophisticated motor planning for a single action. The present study extends this work by asking whether monkeys are capable of planning a sequence of repetitive motor actions to accommodate a task demand. We presented tamarins with a tape measure baited with a food reward at near or far distances and measured their ma...

This study reports on an experiment in which a group of 14 American learners of Spanish as a foreign language performed two monologic production tasks with and without time for planning. Several hypotheses were tested concerning language complexity, grammatical accuracy, lexical complexity, and degree of fluency. As predicted, it was found that learners produced more complex, but not more accur...

BACKGROUND Voluntary motor deficits are a common feature in Huntington's disease (HD), characterised by movement slowing and performance inaccuracies. This deficit may be exacerbated when visual cues are restricted. OBJECTIVE To characterize the upper limb motor profile in HD with various levels of difficulty, with and without visual targets. METHODS Nine premanifest HD (pre-HD), nine early...