This volume is based on the proceedings of a NATO Advanced Research Workshop on Slow Potential Changes in the Human Brain that was held at II Ciocco, Tuscany, Italy over the period 13-16th May, 1990. The Workshop Director was Dr. W. C. McCallum of the Burden Neurological Institute, Bristol, England. The meeting was superbly organised and proved to be both stimulating and productive. On behalf of everyone who attended the meeting, I would like to II Ciocco for express my appreciation to NATO for the provision of funding and to providing such a marvellous conference venue. I must apologise to everyone who has contributed to this volume for the length of time it has taken to produce a finished book. As you are all aware, the untimely death of Cheyne McCallum, who was to have been the sole editor of this volume, was very disruptive to both the book and myself. Following Cheyne's death I assumed the responsibility for completing the book as was his wish. I would like to thank you all for your patience and understanding. I would like to acknowledge my indebtedness to the Burden Neurological Institute in general and very specifically to Mrs. Chris Gough who has laboured extensively in the production of this volume.

Zusammenfassung
Proceedings of a NATO ARW held in Il Ciocco, Italy, May 13-16, 1990

Inhalt
Human Slow Potential Research: A Review.- Cerebral Origins of Slow Potential Shifts.- Possible glial contribution in the electrogenesis of SPs.- Slow potential shifts as indicants of glial activation and possible neuromodulation.- Functional topography of the cortex by DC EEG.- DC Recording Methods.- Methodological issues in the measurement of DC biopotentials.- Classification of benign rolandic epilepsy of childhood using correlation dimension.- AC-to-DC inverse filtering of event-related potentials.- Motor and Cognitive Aspects of Slow Potentials.- Beyond reaction time and error rate: Monitoring mental processes by means of slow event-related brain potentials.- An examination of the relationships between CNV amplitude and the preceding steady potential level.- Stimulus preceding negativity: Arguments in favour of non motoric slow waves.- Implications and Applications of SPs.- Brain slow potential changes associated with visual monitoring tasks.- Spatial and temporal organisation of movement related brain macropotentials in children.- Regulation of cortical excitability in patients with epilepsy and its measurement by means of slow cortical potentials.- Contingent Negative Variation and its relationships to arousal and stress in psychopathology.- Theories and Significance of SPs.- Slow cortical potentials reflect the regulation of cortical excitability.- Neurochemical interpretation of cortical slow potentials as they relate to cognitive processes and a parsimonious model of mammalian brain.- The distribution and detection of brain slow potentials and their relationship to neuroglial activities and higher mental functions.- Participants.- Author Index.