Perquin, Marlou  ORCID: https://orcid.org/0000-0001-9791-8202 and Bompas, Aline ORCID: https://orcid.org/0000-0002-6957-2694
2019.
Reliability and correlates of intra-individual variability in the oculomotor system.
Journal of Eye Movement Research
12
(6)
, 11.
10.16910/jemr.12.6.11
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Abstract
Even if all external circumstances are kept equal, the oculomotor system shows intra-individual variability over time, affecting measures such as microsaccade rate, blink rate, pupil size, and gaze position. Recently, some of these measures have been associated with ADHD on a between-subject level. However, it remains unclear to what extent these measures constitute stable individual traits. In the current study, we investigate the intra-individual reliability of these oculomotor features. Combining results over three experiments (>100 healthy participants), we found evidence for intra-individual reliability over different time points (repeatability) as well as over different conditions (generalization). Furthermore, we correlated oculomotor variability with self-assessed ADHD tendencies, mind wandering, and impulsivity, and found evidence against such correlations. As such, the oculomotor system shows reliable intra-individual reliability, but its use for distinguishing self-assessed individual differences in healthy subjects remains unclear. With our results, we highlight the importance of reliability and statistical power when studying between-subject differences.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Psychology Research Institutes & Centres > Cardiff University Brain Research Imaging Centre (CUBRIC) |
| Publisher: | Bern Open Publishing |
| ISSN: | 1995-8692 |
| Date of First Compliant Deposit: | 16 October 2019 |
| Date of Acceptance: | 15 October 2019 |
| Last Modified: | 06 May 2023 01:10 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/126059 |
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