Contents. List of Contributors. Introduction (J. Panksepp). Emotion and Therapeutic Change (L.M. Korman and L.S. Greenberg). Emotional and Psychiatric Disorders Associated with Brain Damage (R.G. Robinson). What Functional Imaging Has Revealed about the Brain Basis of Mood and Emotion (M.S. George, T.A. Ketter, T.A. Kimbrell, J.M. Steedman, and R.M. Post). Biological Trait Markers of Depression (L.L. Davis, G.L. Kramer, A.J. Rush, and F. Petty). Sleep Abnormalities in Major Psychiatric Illnesses: Polysomnographic and Clinical Features (A.B. Douglass). Cortico-Straital Substrates of Cognitive, Motor and Sensory Gating: Speculations and Implications for Psychological Function and Dysfunction (N.R. Swerdlow). Modern Approaches to Understanding Fear: From Laboratory to Clinical Practice (J. Panksepp). Index.