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Experiments in visual search II: Effects of figural patterns on trend assessment
Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Information Science. Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Information Technology, Human-Computer Interaction.
Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Information Technology, Human-Computer Interaction.
1995 (English)Report (Other scientific)
Abstract [en]

A common task in many different types of computer work is to scan rows and columns of numerical data and look for trends, increasing or decreasing. In field studies we had observed that skilled users seemed to recognise the figural patterns formed by width variations in columns and use that as a clue in the task of assessing trends. In two experiments we studied assessment of trends. The result show that users can learn to recognise a width variation pattern which is correlated to the presence of a trend, and that recognition of such patterns significantly decrease search time compared to if no such pattern is present. The effect was larger in a vertical orientation compared to a horizontal orientation. Like other studies we also found that scanning for trends gener ally is performed faster in columns than in rows. The findings have implications for the presentation of for instance intensive care data, and process control data, where rows and columns are scanned many times each day.

Place, publisher, year, edition, pages
1995.
Series
Report no. 56/95 from Uppsala University Center for Human-Computer Studies, Uppsala, Sweden
National Category
Computer and Information Science Psychology (excluding Applied Psychology)
Identifiers
URN: urn:nbn:se:uu:diva-31883OAI: oai:DiVA.org:uu-31883DiVA: diva2:59781
Available from: 2007-02-12 Created: 2007-02-12

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Nygren, ElseLind, Mats

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