| |
Centre for Policy on Ageing | |
 | |
|
Age-related changes in the functional visual field
— further evidence for an inverse age x eccentricity effect | | Author(s) | Tanja R M Coeckelbergh, Frans W Cornelissen, Wiebo H Brouwer |
| Journal title | Journals of Gerontology: Series B, Psychological Sciences and Social Sciences, vol 59B, no 1, January 2004 |
| Pages | pp P11-P18 |
| Source | http://www.geron.org |
| Keywords | Cognitive processes ; Mental speed ; Age groups [elderly] ; Young adults [20-25] ; Evaluation ; Netherlands. |
| Annotation | The authors used the Attended Field of View test, a visual search task in which eye movements were allowed, to assess the performance of 7 younger (ages 22-28) and 7 older (ages 58-78) Dutch individuals. When adjusting for slower processing in the older age group by log transformation, significant effects of age, eccentricity and Age x Eccentricity were observed. Contrary to previous findings, the Age x Eccentricity effect was "inverted", in that the difference between the age groups decreased as a function of eccentricity. The finding that the eccentricity effect of younger individuals was larger than that of older individuals was caused by large age-related differences in sensitivity for centrally located targets, even though differences with regard to foveal resolution were controlled. The results further indicated that, given a brief amount of time, older people could process a smaller field of view than younger people. Consequently, older people were forced to resort to serial scanning for a larger part of the display, whereas younger people could process a larger area in parallel. (RH). |
| Accession Number | CPA-040705203 A |
| Classmark | DA: DG: BB: SD6: 4C: 76H |
Data © Centre for Policy on Ageing |
|
| ...from the Ageinfo database published by Centre for Policy on Ageing. |
| |
|