The search task and the system both affect the demand on cognitive resources during information search. In some situations the demands may become too high for a person. This article has a three-fold goal. First, it presents and critiques methods to measure cognitive load. Second, it explores the distribution of load across search task stages. Finally, it seeks to improve our understanding of fa...

We tested contrasting predictions derived from perceptual load theory and from recent feature-based selection accounts. Observers viewed moving, colored stimuli and performed low or high load tasks associated with one stimulus feature, either color or motion. The resultant motion aftereffect (MAE) was used to evaluate attentional allocation. We found that task-irrelevant visual features receive...

Whether cognitive load-and other aspects of task difficulty-increases or decreases distractibility is subject of much debate in contemporary psychology. One camp argues that cognitive load usurps executive resources, which otherwise could be used for attentional control, and therefore cognitive load increases distraction. The other camp argues that cognitive load demands high levels of concentr...

The load theory of selective attention (Lavie, 1995; Lavie, 2005; Lavie and Tsal, 1994) assumes an adaptive filtering mechanism that suppresses irrelevant perceptual information depending on the amount of attentional or perceptual resources used for task-related goals. In the wake of the original findings of Lavie and co-workers (Lavie, 1995; Lavie and Tsal, 1994), different types of load were ...

Perceptual load has been found to be a powerful determinant of distractibility in laboratory tasks. The present study assessed how the effects of perceptual load on distractibility in the laboratory relate to individual differences in the likelihood of distractibility in daily life. Sixty-one subjects performed a response-competition task in which perceptual load was varied. As expected, indivi...

PURPOSE To examine whether semantic access by speech requires attention in children. METHOD Children (N = 200) named pictures and ignored distractors on a cross-modal (distractors: auditory-no face) or multimodal (distractors: auditory-static face and audiovisual-dynamic face) picture word task. The cross-modal task had a low load, and the multimodal task had a high load (i.e., respectively n...

Inattentional blindness refers to a failure to detect visible objects when attention is engaged in a task. Despite the central role for attention implied by its name, there is surprisingly little evidence that inattentional blindness indeed results from inattention. In this thesis I provide such evidence in demonstrating that rates of inattentional blindness critically depend on the extent to w...

The elevated level of entrance decentralized power sources with their Intermittent and volatility gives us a accost task to control load frequency, moreover this quandary is getting worsen up the Involvement electric vehicles in rundown. This paper presents censorious robust fractional order operative established tilt integral derivative controller (FOTID) for regulating frequency. To emulate d...

BACKGROUND Functional magnetic resonance imaging (fMRI) studies indicate that the brain organizes its activity into multiple functional networks (FNs) during either resting condition or task-performance. However, the functions of these FNs are not fully understood yet. METHODOLOGY/PRINCIPAL FINDINGS To investigate the operation of these FNs, spatial independent component analysis (sICA) was u...

Two experiments were conducted to investigate the automatic processing of emotional facial expressions while performing low or high demand cognitive tasks under unattended conditions. In Experiment 1, 35 subjects performed low (judging the structure of Chinese words) and high (judging the tone of Chinese words) cognitive load tasks while exposed to unattended pictures of fearful, neutral, or ha...