The Speed of Optic Flow Stimuli Influences Body Sway
Bibliographic Data
| ID | 15468494 |
|---|---|
| Authors | Milena Raffi (0000-0002-7467-5591, University of Bologna, corresponding author), Aurelio Trofè (0000-0002-5245-9118, University of Bologna), Andrea Meoni (0000-0002-5518-9096, University of Bologna), Alessandro Piras (0000-0001-5974-0116, University of Bologna) |
| Year | 2022 |
| Volume | 19 |
| Issue | 17 |
| Pages | 10796-10796 |
| Publication date | 2022-08-30 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph191710796 |
| PMID | 36078516 |
| OpenAlex | W4293776769 |
| Language | EN |
| References cited | 49 |
Optic flow is a perceptual cue processed for self-motion control. The aim of this study was to investigate whether postural control is modulated by the speed of radial optic flow stimuli. The experiments were performed on 20 healthy volunteers using stabilometry and surface electromyography (EMG). The subjects were instructed to fixate a central fixation point while radial optic flow stimuli were presented full field, in the foveal and in the peripheral visual field at different dots speed (8, 11, 14, 17 and 20°/s). Fixation in the dark was used as control stimulus. The EMG analysis showed that male and female subjects reacted to the stimuli with different muscle activity (main effects for gender, muscle and laterality: p p p < 0.016). The low speed of optic flow stimuli (8 and 11°/s) evoked non-uniform directions of oscillations especially in peripheral stimulation in all subjects, meaning that optic flow simulating slow self-motion stabilizes body sway
Flow (mathematics · Mechanics · Physics · Balance, Gait, and Falls Prevention · Heart Rate Variability and Autonomic Control · Motor Control and Adaptation · Psychology
| Highly cited | No |
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