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RE: Wanted: evidence of negative effects of moving images

From: John Colby <John.Colby@uce.ac.uk>
Date: Fri, 25 May 2007 09:12:16 +0100
Message-ID: <123505CD74170A4097732B2AC5326CB01773F0@STAFFEXA.staff.uce.ac.uk>
To: <allison.l.tynan@uk.pwc.com>, <w3c-wai-ig@w3.org>
No formal test, but many of my students (not only the dyslexic ones) have problems with http://www.richard3museum.co.uk/main.html - especially when it gets onto the second screen with text below - very few people's reading speed can keep up with some of the captions.

I use it as an example of how not to do it.



John Colby
Lecturer, Department of Computing, The Business School,
Room F114, Feeney Building, University of Central England,
Franchise Street, Perry Barr, Birmingham B42 2SU
Tel: +44 (0) 121 331 6937
Essential Website - http://essential.tbs.uce.ac.uk

-----Original Message-----
From: w3c-wai-ig-request@w3.org on behalf of allison.l.tynan@uk.pwc.com
Sent: Fri 5/25/2007 07:04
To: w3c-wai-ig@w3.org
Subject: Re: Wanted: evidence of negative effects of moving images


I don't know of any large studies, other than perhaps the DRC's formal
investigation into website accessibility, which might have a section on
this subject.  However, I recently user tested a website with moving Flash
images.  The Flash contained text.  My dyslexic participants couldn't
actually read the text in the time permitted and also found the changing
image distracting when viewing other sections of the page.


             Andy Mabbett                                                  
             ng.org.uk>                                        Action (To) 
             Sent by:                       w3c-wai-ig@w3.org              
             w3c-wai-ig-reques                            Information (cc) 
                                            Wanted: evidence of negative   
             24/05/2007 21:46               effects of moving images       

Further to accessibility discussions on Wikipedia


I'm looking for evidence of people with disabilities who are
caused problems by moving images. I know about rapid flashing a photo-
sensitive epilepsy, but I'm looking for citations that people with
cognitive disabilities, head injuries, dyslexia or whatever can be
effected by moving (as opposed to rapidly flashing) images,.

Can anyone help, please?

Andy Mabbett
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Received on Friday, 25 May 2007 08:15:15 UTC

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