A small group of retinal cells, known as OFF ganglion cells, can detect small dips in light levels and appear to be responsible for shadow detection.
A novel, custom-built microscope allowed researchers to track the activity of a single neuron across the entire visual cortex.
A specific set of socially tuned neurons fire across multiple regions across the prefrontal cortex and the amygdala at different times during mutual eye contact. The brain regions are recruited to compute selective aspects of interactive social gaze, suggesting the importance of a more contemplative role during social gaze interactions.
Cognitive tests that rely on vision-dependent tasks may skew results for up to 25% of adults over 50 with undiagnosed visual problems such as AMD and cataracts. This may lead to a misdiagnosis of mild cognitive impairment in older adults.
Researchers have identified a neural network that connects the legs to the visual system in order to shape walking.
By the time most of us hit our 40s, our close-up vision starts to decline and we develop presbyopia. A new eye drop called Vuity claims to alleviate the symptoms of presbyopia, allowing people to gain clearer vision without the need for glasses or surgery. Researchers examine the potential benefits of using Vuity for people with presbyopia.
Transplanting fecal microbiota from young mice to older mice reversed hallmark signs of aging in the gut, brains, and eyes. Transplanting the fecal microbiota from old to young mice had the reverse effect, inducing inflammation in the brain and depleting a key protein associated with healthy vision.
The upper visual field bias for faces emerges at around 7 months of age. Babies over 7 months developed a preference for memorizing the upper portions of a face.
A new study reveals blind people remember speech and language better than sighted people. Researchers say blind people use language as a mental tool to remember information.
Study sheds new light on the neurobiological mechanisms that occur, allowing the ADHD drug Ritalin to improve attention and report the drug could have benefits for a range of cognitive changes associated with aging.
When reaching for a target object, we anchor our gaze to the target of the reach moment, thereby looking at the target for longer periods. This helps make our reach more accurate.
People who experience visual imagination have pupillary responses that optimize the amount of light hitting the retina and change in response to imagined items. This pupillary response does not occur in those with aphantasia.
