Abstract
Background
To determine the blink patterns of newscasters.
Methods
The blink patterns of 39 professional newscasters (24 Japanese and 19 non-Japanese, 19 men and 20 women, mean age: 34.5 ± 6.5 years) were analyzed by a blink analyzer in this observational case series. Sixty-four normal Japanese volunteers (35 men and 29 women, mean age: 31.2 ± 7.6 years) were used as lay normal controls.
Results
The maximum, mean, and coefficient of variation (CV) of interblinking time (IBT: the time between one blink and the next) in newscasters were 2.36 ± 0.90 s (P < 0.0005), 0.95 ± 0.27 s (P < 0.0005), and 0.76 ± 0.25 (P < 0.0005), respectively, while those of the controls were 8.87 ± 3.96 s, 4.01 ± 2.05 s, and 0.55 ± 0.21, respectively. The maximum, mean, and CV of the blinking time (BT: the length of time for each blink) of newscasters were 0.71 ± 0.43 s (P < 0.0005), 0.29 ± 0.11 s (P < 0.0005), and 0.55 ± 0.25 (P < 0.0005), respectively. The values were longer when compared with normal controls, which were also significantly different, 0.35 ± 0.12 s, 0.20 ± 0.04 s and 0.23 ± 0.09, respectively.
Conclusions
The six blink-related factors varied between newscasters and normal controls. Newscasters blink more often with greater irregularity.
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Mori, A., Egami, F., Nakamori, K. et al. Quantitative videographic analysis of blink patterns of newscasters. Graefes Arch Clin Exp Ophthalmol 246, 1449–1453 (2008). https://doi.org/10.1007/s00417-008-0887-3
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DOI: https://doi.org/10.1007/s00417-008-0887-3