Our ability to pick out objects from their backgrounds based on differences in luminance has traditionally been thought to remain constant across different light intensities.
This assumption has been based largely on previous studies using relatively dim stimuli (Geisler et al, 2007). But researchers at the State University of New York set out to investigate how contrast sensitivity is affected in a greater range of light intensities.
In tests on cats and humans, the group measured the responses of neurons to different combinations of contrast and light intensities.
Sign in to continue
Not already a member of the College?
Start enjoying the benefits of College membership today. Take a look at what the College can offer you and view our membership categories and rates.
The College of Optometrists and The Association of Optometrists (AOP) warn the current self-declaration system puts more lives at risk of death or injury.
The UK Eye Care Data Hub, the most up-to-date and comprehensive model of the UK’s eye care workforce and eye diseases in one place, has been expanded to almost double the number of eye conditions and update aspects of the sector workforce data.
