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"Visual crowding: Basic mechanisms and abnormalities associated with schizophrenia "

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If you have a question about this talk, please contact John Mollon.

Objects presented in the peripheral field are hard to recognise when they are surrounded by visual clutter, a phenomenon known as crowding. I will first describe work suggesting that this process can be understood in terms of averaging of visual features (such as orientation and position) across space, a process that serves to regularise the appearance of the periphery. Visual problems in schizophrenia have been linked to abnormal processing of visual context and I will report experiments that are consistent with this leading to both poor sensitivity to elongated contours but also to a reduction in crowding.

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