Associations between accommodative dynamics, heart rate variability and behavioural performance during sustained attention: A test-retest study

Vision Research
Beatriz RedondoRaimundo Jiménez

Abstract

This study evaluated the time-on-task effect of a sustained attention task on the accommodative response, explored the link between ocular accommodation, cardiac autonomic regulation and behavioral performance, and tested the inter-session repeatability of these results by performing the same experimental procedure on different days. The accommodative response was measured in 25 university students using a WAM-5500 autorefractor, while participants performed a 10-minute psychomotor vigilance task at 50 cm. There were no time-on-task effects for the lag of accommodation, whereas the microfluctuations of accommodation and reaction time were modulated as a function of time-on-task, observing a progressive increment of both variables over time. Multiple regression analysis revealed that the microfluctuations of accommodation were a reasonably good predictor of behavioral performance. Analysis of inter-session repeatability showed that ocular accommodation, heart rate variability and reaction time had a low to moderate level of repeatability between two measurements. The microfluctuations of accommodation were sensitive to time-on-task effects during sustained attention, with a lower stability of accommodation being linked to reduce...Continue Reading

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Citations

Oct 2, 2020·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Beatriz RedondoRaimundo Jiménez
May 6, 2020·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Beatriz RedondoRaimundo Jiménez
Oct 17, 2020·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Miriam Casares-LópezRosario G Anera
Jul 31, 2021·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Jennifer Swingle FogtNick Fogt
Nov 30, 2021·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Beatríz RedondoRaimundo Jiménez

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