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Can't decide whether you should sit, stand, or do something in between? A guide to your options for moving more at work.

It is widely accepted that there exists a region or locus of maximal resource allocation in visual perception--sometimes referred to as the spotlight of attention. We have argued that even if there is a single locus of processing, there must be multiple loci of parallel access--several places in the visual field must be indexed at once and these indexes can be used to determine where attention is allocated. We have carried out a variety of studies to support these ideas, including experiments showing that subjects can track multiple independent moving targets in a field of identical distractors, that the enhanced ability to detect changes occurring on these targets does not accrue to nontargets nor to items lying inside the convex polygon that they form (so that a zoom-lens of attention does not fit the data). We have used a visual search paradigm to show that (serial or parallel) search can be confined to a subset of indexed items and the layout of these items is of little importance. We have also studied the phenomenon known as subitizing and have shown that subitizing occurs only when items can be preattentively individuated and in those cases location precuing has little effect, compared with when counting occurs, which suggests that subitizing may be carried out by counting active indexes rather than items in the visual field. And finally we have run studies showing that a certain motion effect that is sensitive to attention can occur at multiple precued loci. We believe that this evidence suggests that there is an early preattentive stage in vision where a small number of salient items in the visual field are indexed and thereby made readily accessible for a variety of visual tasks.

Vitamins dietary intakes per day

If you spend a good part of your day using the computer, the 20-20-20 rule, that I recently learned recently from my doctor, might also help you relax your tired eyes.

A range of evidence helped to shape the revised Food Guide. Nutrient standards and the prevention of chronic disease were key scientific inputs.
Research and analysis on issues of both a technical and communications nature were undertaken. Technical matters included addressing issues related to the food groups, number of servings and serving sizes. These technical issues were addressed in part in the context of developing food intake patterns.
Communication matters included issues related to terminology, target audiences and graphics. A range of input including results from focus groups, on-line consultations, regional meetings, the review of the 1992 Food Guide and reviews of literature about the environmental context in which Canadians make food choices contributed to the pool of information used to address communication issues.

Healthy Eating Advice by UK Govt, source http://en.wikipedia.org/wiki/Dietary_Reference_Values

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