Visual hallucinations (VH) are conscious visual perceptions that occur in the absence of an external physical stimulus. Some patients may have VH that are so frequent or disturbing that they seek treatment for these. In this paper in the journal … Continued
In the ophthalmic disease glaucoma, the visual pathways from the eye to the brain get damaged, but why this happens is still debated. In a paper in the scientific journal “Investigative Ophthalmology and Vision Science (IOVS)”, Shereif Haykal and colleagues … Continued
Visual hallucinations are perceptions without a physical stimulus to relate the percept too. People who suffer from psychosis often experience visual hallucinations, but the properties of these hallucinations are not well known yet. Marouska van Ommen and co-authors published a … Continued
In games, hints can help you play a game faster or better. Also perception can use hints – often referred to as cues or “previews” – such that it becomes better. But what aspect of these visual hints does our visual … Continued
On August 21st, Frans Cornelissen gave a presentation at the Noorderzon Festival in Groningen about “The Art of Vision”. The presentation was part of a trio of presentations together with Iris Sommer and Barend van Heusden under the title “Art … Continued
The Belgian newspaper “De Standaard” has a section called “Wetenschapswinkel” (science shop) in which its readers can ask questions, which the newspaper attempts to answer with the help of scientists. In the edition of July 15th, Frans helped answer the … Continued
Our eyes capture way more information than our brains can possibly process. To reduce this information stream, the visual brain performs two tricks: it can either summarize the information, or it can single out a small piece of it. But … Continued
On Friday June 7th, Alessandro won the 2019 Falling Walls competition held at the University of Groningen with his pitch about his ideas for a new neuro-ophthalmic assessment. The prize: a trip to Berlin, to attend the Falling Walls Conference, … Continued
Some visual tasks you can do better in your left compared to in your right visual field. But are all reported effects as robust as previously claimed? In a paper published in the journal “Cortex”, Sanne Brederoo and co-authors report … Continued