We have discovered a previously unknown perceptual deficit that selectively affects the ability to see letters and numbers. Two cases of the impairment (which we are calling Alphanumeric Visual Awareness Disorder, or AVAD) have been identified, and we are actively searching for additional cases, probing the causes and consequences of the disorder, and working to […]
[Video] In an effort to unlock the secrets of the brain and creativity, Johns Hopkins cognitive scientists are studying Lonni Sue Johnson, an artist who contracted viral encephalitis in 2007.
This project uses cognitive neuropsychological methods and studies of normal adults and children to explore how the brain represents two very basic properties of visual stimuli: location and orientation.
In this project cognitive neuropsychological studies of brain-damaged patients reveal properties of the computational architecture and orthographic representations that underlie reading and spelling performance.
How much can we learn about normal visual perception and cognition from a malfunctioning visual system? Quite a lot, as Michael McCloskey makes abundantly clear in this book.