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9.2: Invited Paper: Eye movement study on the effects of long term continuous use of circularly and linearly polarized liquid crystal displays on response inhibition
Author(s) -
Zhang Yunhong,
Din Jinhong
Publication year - 2019
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.13397
Subject(s) - saccade , linear polarization , physics , optics , polarized light microscopy , circular polarization , elliptical polarization , amplitude , eye movement , ophthalmology , medicine , laser , microstrip
Evaluate the effects of long term continuous use of circularly and linearly polarized liquid crystal display (LCD) on the inhibition of human response by eye tracking technique. 47 subjects were randomly divided into two groups, one group was circularly polarized (experimental group) and the other group was linearly polarized (control group). The experiment used 2 (test times) *2 (display devices) design. The interval between the two tests was 1 month. The dependent variables were the saccade accuracy, saccade amplitude and saccade latency in completing the saccade task. The research results showed that the antisaccadic accuracy of circularly polarized group was significantly higher than that of the linearly polarized group (F (1,72) =4.94, p<0.05); The antisaccade distance of the circularly polarized group was significantly greater than that of linearly polarized group (F(1,72) =3.98, p<0.05). Antisaccade accuracy and antisaccade amplitude indexes can well reflect the effects of experimental conditions. The extent of reponse inhibition decrease of circularly polarized group (experimental group) was lower than that of linearly polarized group (control group). Therefore, the results showed that the effect of reponse inhibition of the long‐term use of circularly polarized light displays was ligther than that of the long‐term use of linearly polarized displays.