Contracts Management Branch, National Institute of Neurological Disorders and Stroke, NIH, Federal Building, Room 901, 7550 Wisconsin Ave., MSC 9190, Bethesda, MD 20892-9190

A -- COMPUTATIONAL NEURONAL MODELING POC Kirkland L. Davis, Contracting Officer, (301) 496-9203. The National Institute of Neurological Disorders and Stroke (NINDS), NIH, intends to negotiate with the Environmental Research Institute of Michigan (ERIM), Ann Arbor, Michigan, a one-year extension, with additional labor effort, of Contract No. NO1-NS-3-2304. The time extension, with additional effort, is needed to permit the Contractor to accomplish the technical objectives currently required under the contract. The current contract effort requires the continued development and expansion of a previously developed neural network model (Dystal) of associative learning in Hermissenda crassicornis, rat, and rabbit, as elucidated by the ongoing research of the staff of the Neural Systems Section, NINDS, and; to improve, expand, revise and develop new algorithms based thereon, in order to achieve a level of pattern recognition performance that approaches more closely the pattern learning, storage, recall and recognition performance achieved by primates. To achieve these objectives, research efforts have been geared to: (a) modeling of attentional/intentional mechanisms; (b) reverse engineering of the information processing occurring in the visual cortex (feature extraction); and (c) elucidation of the interactions of neuronal dendritic membrane patches that refine the specificity of learning, storage, and recall processes in biological systems. The existence of proprietary information and patent rights, as well as inherent duplication of cost to the Government and delays in completing the project, make competition for the additional time and effort not feasible. Authority: 41 U.S.C. 254(c)(1), as set forth in FAR 6.302-1. See Numbered Note 22. (103)

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