Part I: Basic Research Issues. Long-Term Habituation of q-Related Activity Components of Albino Rats in the Lat Maze, Adolfo Gustavo Sadile. Tonic Immobility as a Model of Extreme States of Behavioral Inhibition: Issues of Methodology and Measurement, Gordon G. Gallup, Jr. and Dawn R. Rager. Circadian Organization of Locomotor Activity in Mammals, Ralph E. Mistlberger. Sex Differences in Rodent Spontaneous Activity Levels, Larissa A. Mead, Eric L. Hargreaves, and Liisa A. M. Galea. Automated Video-Image Analysis of Behavioral Asymmetries, R. K. W. Schwarting, J. Fornaguera, and J. P. Huston. Automated Methods of Measuring Gnawing Behaviors, Donald E. Moss and Edward Castaneda. Part II: Preclinical Research. The Catalepsy Test: Is a Standardized Method Possible? Paul R. Sanberg, Rodrigo Martinez, R. Douglas Shytle, and David W. Cahill. Computer-Assisted Video Assessment of Dyskinetic Movements, Gaylord Ellison and Alan Keys. The Computer Pattern Recognition System for Study of Spontaneous Behavior of Rats: A Diagnostic Tool for Damage in the Central Nervous System? Phyllis J. Mullenix. Circling Behavior in Rodents: Methodology, Biology, and Functional Implications, Jeffrey N. Carlson and Stanley D. Glick. Asymmetrical Motor Behavior in Animal Models of Human Diseases: The Elevated Body Swing Test, Cesario V. Borlongan and Paul R. Sanberg. Measuring Spontaneous Turning Behaviors in Children and Adults, H. Stefan Bracha and Jeffrey W. Gilger. Clinical Assessment of Motor Abnormalities in Tourette's Syndrome, R. D. Shytle, A. A. Silver, and Paul R. Sanberg. Index.