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Age-related performance of human subjects on saccadic eye movement tasks
| Content Provider | Semantic Scholar |
|---|---|
| Author | Munoz, Douglas P. Broughton, J. Richard Goldring, Jenny E. Armstrong, Irene T. |
| Copyright Year | 1998 |
| Abstract | Abstract We measured saccadic eye movements in 168 normal human subjects, ranging in age from 5 to 79 years, to determine age-related changes in saccadic task performance. Subjects were instructed to look either toward (pro-saccade task) or away from (anti-saccade task) an eccentric target under different conditions of fixation. We quantified the percentage of direction errors, the time to onset of the eye movement (saccadic reaction time: SRT), and the metrics and dynamics of the movement itself (amplitude, peak velocity, duration) for subjects in different age groups. Young children (5–8 years of age) had slow SRTs, great intra-subject variance in SRT, and the most direction errors in the anti-saccade task. Young adults (20–30 years of age) typically had the fastest SRTs and lowest intra-subject variance in SRT. Elderly subjects (60–79 years of age) had slower SRTs and longer duration saccades than other subject groups. These results demonstrate very strong age-related effects in subject performance, which may reflect different stages of normal development and degeneration in the nervous system. We attribute the dramatic improvement in performance in the anti-saccade task that occurs between the ages of 5–15 years to delayed maturation of the frontal lobes. |
| Starting Page | 391 |
| Ending Page | 400 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s002210050473 |
| PubMed reference number | 9746145 |
| Journal | Medline |
| Volume Number | 121 |
| Alternate Webpage(s) | http://brain.phgy.queensu.ca/doug/www/publications/38_Munoz_ExpBrainRes_1998_121.pdf |
| Alternate Webpage(s) | http://e.guigon.free.fr/rsc/article/MunozEtAl98.pdf |
| Alternate Webpage(s) | http://brain.phgy.queensu.ca/doug/www/publications/38A_Abs_Munoz_ExpBrainRes_1998_121.pdf |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/s002210050473 |
| Alternate Webpage(s) | https://doi.org/10.1007/s002210050473 |
| Journal | Experimental Brain Research |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
