Biological Investigations of Adaptive Networks. Neuronal Control of Conditioned Responding.
Annual technical rept. no. 2, 30 Apr 84-20 May 85,
MASSACHUSETTS UNIV AMHERST DEPT OF PSYCHOLOGY
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Neurobiological investigations of adaptive neural networks were conducted using the classically conditioned nictitating membrane response NM CR of rabbit, a widely used model system for studies of learning. One experimental approach involved recording from single brain neurons from awake, behaving animals for the purpose of determining the loci and characteristics of neurons with activity correlated with the NM CR or its inhibition. A second approach involved the use of discrete brain lesions that selectively eliminate the NM CR while at the same time sparing the basic reflex pathway. A third approach employed fiber-tracing anatomical techniques designed to clarify the inter-connectivity among brain regions essential for the NM CR. These regions include discrete portions of the cerebellum and brain stem. Information from physiological studies has been incorporated into mathematical models of learning used by adaptive network researchers, and anatomical findings have guided the development of related neuronal models.
- Anatomy and Physiology