Evaluation of Critical Flicker-Fusion Frequency Measurement Methods for the Investigation of Visual Temporal Resolution
Autor: | Uri Polat, Zvia Burgansky-Eliash, Nairouz Farah, Auria Eisen-Enosh, Yossi Mandel |
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Rok vydání: | 2017 |
Předmět: |
genetic structures
lcsh:Medicine Flicker fusion threshold Article 050105 experimental psychology Visual processing 03 medical and health sciences 0302 clinical medicine Psychophysics 0501 psychology and cognitive sciences Computer vision Bland–Altman plot lcsh:Science Mathematics Measurement method Multidisciplinary business.industry lcsh:R 05 social sciences Repeatability Temporal resolution lcsh:Q Artificial intelligence Constant (mathematics) business 030217 neurology & neurosurgery |
Zdroj: | Scientific Reports Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017) |
ISSN: | 2045-2322 |
DOI: | 10.1038/s41598-017-15034-z |
Popis: | Recent studies highlight the importance of the temporal domain in visual processing. Critical Flicker-Fusion Frequency (CFF), the frequency at which a flickering light is perceived as continuous, is widely used for evaluating visual temporal processing. However, substantial variability in the psychophysical paradigms, used for measuring CFF, leads to substantial variability in the reported results. Here, we report on a comprehensive comparison of CFF measurements through three different psychophysical paradigms: methods of limits; method of constant stimuli, and staircase method. Our results demonstrate that the CFF can be reliably measured with high repeatability by all three psychophysics methods. However, correlations (r = 0.92, p≪0.001) and agreement (Bland Altman test indicated 95% confidence limit variation of ±3.6 Hz), were highest between the staircase and the constant stimuli methods. The time required to complete the test was significantly longer for the constant stimuli method as compared to other methods (p |
Databáze: | OpenAIRE |
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