The following guest lecture will be held at Helsinki University of Technology, Department of Technical Physics, Lecture Hall F1 (Street address: Otakaari 3 A), on Tuesday April 21 starting at 16.15 All those interested in brain theory and artificial neural networks are cordially invited to attend. Erkki Oja, professor --------------------------------------------------------------- A Theory of the Cerebral Cortex Robert Hecht-Nielsen HNC Software Inc. and University of California, San Diego Abstract This talk will describe a comprehensive new theory of the cerebral cortex. What do different types of cortical cells do? How is sensory data processed? How are motor commands generated? What does frontal cortex do? What is thinking? In what representational system is information stored? How do learning and memory work? What, exactly, happens - step by step - during examination of visual scene? What is sleep? In short, this theory explains - in specific clear detail, the first-order picture of how the entire cerebral cortex works.