Replicability and reliability of the background and target velocity effects in smooth pursuit eye movements
Bibliographic Data
| ID | 21283909 |
|---|---|
| Authors | Rebekka Schröder (0000-0002-0206-4484, University of Bonn), Philine Margarete Baumert (University of Bonn), Ulrich Ettinger (0000-0002-0160-0281, University of Bonn, corresponding author) |
| Year | 2021 |
| Volume | 219 |
| Pages | 103364 |
| Publication date | 2021-09-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Acta Psychologica (JOURNAL) |
| Journal identifiers | ISSN: 0001-6918 • E-ISSN: 1873-6297 |
| Publisher | Elsevier BV (PUBLISHER) |
| DOI | 10.1016/j.actpsy.2021.103364 |
| PMID | 34245980 |
| OpenAlex | W3181416273 |
| Language | EN |
| References cited | 80 |
When we follow a slowly moving target with our eyes, we perform smooth pursuit eye movements (SPEM). Previous investigations point to significantly and robustly reduced SPEM performance in the presence of a stationary background and at higher compared to lower target velocities. However, the reliability of these background and target velocity effects has not yet been investigated systematically. To address this issue, 45 healthy participants (17 m, 28 f) took part in two experimental sessions 7 days apart. In each session, participants were instructed to follow a horizontal SPEM target moving sinusoidally between ±7.89° at three different target velocities, corresponding to frequencies of 0.2, 0.4 and 0.6 Hz. Each target velocity was presented once with and once without a stationary background, resulting in six blocks. The blocks were presented twice per session in order to additionally explore potential task length effects. To assess SPEM performance, velocity gain was calculated as the ratio of eye to target velocity. In line with previous research, detrimental background and target velocity effects were replicated robustly in both sessions with large effect sizes. Good to excellent test-retest reliabilities were obtained at higher target velocities and in the presence of a stationary background, whereas lower reliabilities occurred with slower targets and in the absence of background stimuli. Target velocity and background effects resulted in largely good to excellent reliabilities. These findings not only replicated robust experimental effects of background and target velocity at group level, but also revealed that these effects can be translated into reliable individual difference measures
Audiology · Eye movement · Physics · Reliability (semiconductor) · Smooth pursuit · Glaucoma and retinal disorders · Medicine · Neuroscience · Psychology · Vestibular and auditory disorders · Visual perception and processing mechanisms
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| Highly cited | No |
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