Tuesday, April 23, 2019

Retinal Art: Appreciating the Beauty of Sensation & Perception

Retinal Art: Appreciating the Beauty of Sensation & Perception
Maria Almoite

Image: Gregadunn.com

Eyes are so fascinating to me. They can convert environmental visual cues and create their own perception of an image. Not to mention, our own eyes can deceive us with what's shown in front of us (e.g., optical illusions) and how our visual experiences actually differ from one another (remember that blue/gold dress debacle?). My recent research also taught me how valuable the eyes are beyond sight. Dysconjugated gaze (the inability to move eyes in a single horizontal/vertical direction) tells us if the brain is healthy or not. In fact, we actually learned that we can detect the severity of brain trauma and its exact location by using sophisticated eye-tracking (Samadani et al., 2015). Another study also found that eye-tracking can detect Alzheimer's. Patients with Alzheimer's made no errors when they were asked to look towards the light, but made errors that they were unable correct when they were asked to look away. Vision is incredibly fascinating both figuratively and literally. hashtagscience hashtagneuroscience

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