Linked Life Data

16078032

Source:http://linkedlifedata.com/resource/pubmed/id/16078032

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-12-2
pubmed:abstractText
In a saccadic search task, we investigated whether spacing between elements affects search performance. Since it has been suggested in the literature that element spacing can affect the eye movement strategy in several ways, its effects on search time per element are hard to predict. In the first experiment, we varied the element spacing (3.4 degrees -7.1 degrees distance between elements) and target-distracter similarity. As expected, search time per element increased with target-distracter similarity. Decreasing element spacing decreased the search time per element. However, this effect was surprisingly small in comparison to the effect of varying target-distracter similarity. In a second experiment, we elaborated on this finding and decreased element spacing even further (between 0.8 degrees and 3.2 degrees). Here, we did not find an effect on search time per element for element spacings from 3.2 degrees to spacings as small as 1.5 degrees . It was only at distances smaller than 1.5 degrees that search time per element increased with decreasing element spacing. In order to explain the remarkable finding that search time per element was not affected for such a wide range of element spacings, we propose that irrespective of the spacing crowding kept the number of elements processed per fixation more or less constant.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0014-4819
pubmed:author
pubmed:issnType
Print
pubmed:volume
167
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
246-59
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Saccadic search performance: the effect of element spacing.
pubmed:affiliation
Psychonomics Department, Helmholtz Institute, Universiteit Utrecht, Heidelberglaan 2, The Netherlands. B.N.S.Vlaskamp@fss.uu.nl
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't