Cognitive brain potentials and regional cerebral blood flow equivalents during two- and three-sound auditory “oddball tasks”

Ten healthy volunteers were examined with single photon emission tomography and 99mTc-exametazime. They were studied on 2 occasions, during a 2- and a 3-sound auditory discrimination (oddball) task. Twenty healthy volunteers were used as controls, studied once at rest. During the 2-tone task there w...

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