These data, in turn, showed principal similarities and differences in organisation of these cell groups across species. This study provides a basis for comparing the structural organisation of the human hypothalamic nuclei to the hypothalamic autonomic control centers described in experimental animals. The expression of circadian rhythmicity in the vertebrate brain is manifest in many diverse neurobiological functions, from electrical activity and metabolic states to neurosecretory rhythms. Our interest has been the identification and characterization at the cellular and molecular level of key elements of this circadian oscillator. These studies offer new avenues for understanding the basis for circadian rhythmicity in the vertebrate brain.
Visual information is processed in a number of distinct cortical areas.
One of the challenges facing neuroscience is to understand what these regions do and how they work together to produce visual perception. I will present results from my studies of an area of visual cortex, called 21a, that is located in extrastriate cortex in the cat. I am particularly interested in the integration of binocular information, studied mainly with the technique of single neuron recordings. Migraine is common and causes great suffering, loss of productivity and social disruption. It is a mysterious condition in which the cranial vasculature, the trigeminal sensory system and the CNS are all involved.