Cell Rep: Study reveals the benefits of outdoor reading

February 3, 2021 /--- contrast is a feeling that emphasizes stimulation.
writers, designers and musicians use contrasts to highlight the significant differences between text, visual display and melody.
, the brightness contrast describes the difference in light intensity between the stimulus and its surroundings.
that's why dark letters are easier to read than gray letters on white pages.
field of visual research has a decades-long assumption that brightness contrast does not vary with light intensity.
, the dark letters in the white page have the same contrast outside (in the brightest light) as indoors (in the darkest light).
this constant contrast is obviously important.
Dr. Hamed Rahimi.com-Nasrabadi, a researcher at the State University of New York's School of Visual And Optical Sciences, et al., have demonstrated that this decades-old hypothesis is incorrect and could lead to important measurement errors that are common to basic research, ophthalmology clinics, and multiple disciplines that rely on accurate visual comparison estimates.
, for example, can lead to visual sensitivity to people with eye diseases, contrast rendering in medical images, or inaccurate measurements of architectural designs in spaces for the visually impaired and the elderly.
new findings suggest that, as a visual sensitivity, contrast sensitivity depends to a large extent on the amount of light.
increase in light changes the contrast sensitivity to dark and bright stimuli (i.e., the stimuli are darker or brighter than the surrounding environment) in the opposite direction.
It improves the ability to distinguish between the darkest contrasts (for example, it's easier to see nuances in eye shadow) and seriously impairs the ability to distinguish between the brightest contrasts (for example, making it harder to distinguish the brightness difference between the brightest mirror reflections of shiny cars).
in the visual cortical layer, neurons in natural scenes, it can be shown that darkness and light intensity vary in opposite directions and appear to be well preserved in different species of mammals.
new findings can also be used to improve current image processing algorithms and visual contrast measurements.
survey results show that outdoor reading feels good.
can be said that science has shown that outdoor visual contrast is enhanced, so reading in bright light stimulates the visual brain more effectively, thus better seeing the text and helping to improve vision.
the study was published in the journal Cell Reports.
(Bioon.com) Source: The benefits of reading outdoors Original source: Image Luminance changes contrasting in visual cortex. Cell reports (2021)DOI: