Dear Users This afternoon (4.15 pm in YNiC open plan) there will be an internal project proposal presentation given by Karla Evans. The title of Karla's talk is "Global image processing". Abstract: Experiments have shown that people can rapidly determine if categories such as “animal” or “beach” are present in scenes that are presented for only a few milliseconds. Typically, observers in these experiments report on one pre-specified category. My work shows that observers can rapidly extract information about multiple categories. Moreover, the findings demonstrate task-dependent interactions between accumulating information about different categories in a scene that are in some cases destructive. I believe that the explanation for this destructive interference is that subjects have learned the spatiotemporal statistics of the trials, which indicate that single targets are the norm: the presence of a beach would almost always correlate with the absence of an animal. My goal is to probe the neuronal correlates of this process to better understand the mechanism of non-selective gist categorization. In order to do this I will present a project plan that exploits repetition attenuation in order study the task-dependent interaction during scene categorisation. Everyone is welcome to attend and refreshments will be served afterwards. Best wishes Rebecca -- ************************************************************************ Dr. Rebecca E. Millman Science Liaison Officer York Neuroimaging Centre The Biocentre York Science Park Heslington YO10 5DG Tel: +44 (0) 1904 567614 Fax: +44 (0) 1904 435356