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[Orientation strategy implicit in spatial attention]

By Gian Maria Galeazzi, C Mucignat, C Barbieri, G Rizzolatti and Umilt&#224


In this experiment, two rows of four boxes, one above and the other below the fixation point, were displayed on a computer monitor. A cognitive numeric cue indicated one of the four external boxes, where the attention was to be directed. Stimuli, however, could occur in any of the eight boxes. The subject was instructed to respond to the imperative stimulus as fast as possible, regardless of its location. Four time intervals between cue and stimulus presentation (SOAs) were employed in order to disclose the route along which attention is moved. With the shortest SOA (100 msec) an indication that attention movements follow the cartesian/orthogonal axes was shown

Topics: Adult, Attention, Humans, Male, Microcomputers, Models, Neurological, Reaction Time, Reference Values, Saccades, Photic Stimulation, Spatial Behavior
Year: 1991
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