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Louise Alston
Department of Human Sciences
Brunel University
Uxbridge
Middlesex, UB8 3PH UK
Office phone: (+44)(0)1895 274000 ext.4645
Office fax: (+44) (0)1895 237573
Email: Louise.Alston@brunel.ac.uk
Home page: http://www.brunel.ac.uk/~hssrlla/
Change Detection Research Interests
I became interested in change blindness after completing my doctoral thesis on subitization. There was evidence that the subitization limit was linked to there being a set capacity of visual short-term memory/attention. At Brunel University, we're looking at change detection using a psychophysical approach and have shown that the threshold for detecting a spatial frequency change increases with set-size. Our research is investigating whether these change detection set-size effects can be explained by signal detection theory. This approach can account for set-size effects in visual search in terms of spatial uncertainty, avoiding the need for a limited capacity model. The results so far for change detection have given slopes much greater than that predicted by spatial uncertainty suggesting that a further factor is causing change blindness.
Other Research Interests
visual attention and memory, subitization, neuropsychology
Change Detection Publications
Last updated: January 16, 2001
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