Visual sensation begins at the retina, which is the neural tissue located at the back of eyeballs. It has been known that the retina detects light using photoreceptors which are light-sensitive nerve cells.In case of retinal degenerative diseases such as retinitis pigmentosa and age-related macular degeneration, those light sensing neurons are gradually damaged, leading to […]
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Evidence shows how the human brain may tap into visual cues when lacking a sense of touch
Researchers at the University of Chicago, the University of Birmingham, and Bournemouth University have uncovered evidence that physical embodiment can occur without the sense of touch, thanks to a study involving two participants who lack the ability to feel touch. The research was published on Feb. 12 in Experimental Brain Research. The transatlantic collaboration emerged […]
Visual impairment may up risk for dementia in older women
(HealthDay)—In older women, objectively measured visual impairment is associated with a twofold to more than fivefold increased risk for dementia, according to a study published online April 16 in JAMA Ophthalmology. Elaine M. Tran, of the Stanford University School of Medicine in Palo Alto, California, and colleagues compared the likelihood of dementia or mild cognitive […]
Eliminating visual stimulation may help counter symptoms of spatial neglect after stroke
A recent report by Kessler researchers and clinicians described the effects of binocular occlusion in a patient with spatial neglect and severe posture impairment. The article, “Impact of eliminating visual input on sitting posture and head position in a patient with spatial neglect following cerebral hemorrhage: a case report,” was epublished on July 18, 2019 […]
Visual illusion proves effective in relieving knee pain for people with osteoarthritis
In a new study published in the journal Peer J this week, researchers at UniSA’s Body in Mind Research Group have found people suffering osteoarthritis in the knees reported reduced pain when exposed to visual illusions that altered the size of their knees. UniSA researcher and NHMRC Career Development Fellow, Dr. Tasha Stanton says the […]
Visual perceptual skills are updated by process similar to memory reconsolidation, study finds
A new study shows that updating visual perceptual skills—which humans rely on to recognize what they see, including potential threats, and ignore unimportant background—is an active process with many similarities to the way they stabilize memories. Published in Nature Human Behavior, the study led by Brown University researchers tested whether memory reconsolidation, observed in animals, […]