12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Dyslexia and the centre-of-gravity effect.
View graph of relations

« Back

Dyslexia and the centre-of-gravity effect.

Research output: Contribution to journalJournal article

Published

Journal publication date03/2001
JournalExperimental Brain Research
Journal number1
Volume137
Number of pages5
Pages122-126
Original languageEnglish

Abstract

When human observers are presented with a double target display, a saccadic eye movement is triggered to an intermediate position close to the ‘centre-ofgravity’ of the configuration. This study examined the saccadic eye movements of dyslexic and normal readers in response to displays of single and double targets. Eye movement analyses revealed no differences in the spatial position of saccadic eye movements of dyslexic and normal readers in response to single targets presented at 5° or 10°. However, when presented with two targets simultaneously at 5° AND 10°, in contrast to normal readers who generated saccades to an intermediate position between the two targets (towards the ‘centre-of gravity’), dyslexics generated saccades that landed close to the near target eccentricity. These findings suggest that dyslexia is associated with a deficit in the processing of global spatial information for the control of saccadic eye movements.