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Human event-related potentials (ERPs) were recorded from 10 subjects presented with visual target and nontarget stimuli at five screen locations and responding to targets presented at one of the locations. The late positive response complexes of 25-75 ERP average waveforms from the two task conditions were simultaneously analyzed with Independent Component… (More)
Recent imaging and clinical studies have challenged the concept that the functional role of the cerebellum is exclusively in the motor domain. We present evidence of slowed covert orienting of visuospatial attention in patients with developmental cerebellar abnormality (patients with autism, a disorder in which at least 90% of all postmortem cases reported… (More)
We describe the automorphism group of the quotient of the symmetric group on a countably innnite set by the group of nitary permutations. We show that the outer automorphism group is innnite cyclic. In the proof, we examine the structure of centralizers in this quotient.
0. Introduction Countable homogeneous graphs have been classified by Alistair Lachlan and Robert Woodrow [5,11]. There is a countable bipartite graph called the universal 'homogeneous' bipartite graph. However, this graph does not occur in Lachlan and Woodrow's list, because it is not homogeneous as a graph but only as a graph with a fixed bipartition… (More)