Learning and Memory.- Animal Models of Anxiety.- Genetic Alterations of the Murine Serotonergic Gene Pathway: The Neurodevelopmental Basis of Anxiety.- Mutagenesis and Knockout Models: Hypothalamic- Pituitary- Adrenocortical System.- Mutagenesis and Knockout Models: NK and Substance P.- Genetic Epidemiology of Anxiety Disorders.- Interactions Between Corticotropin-Releasing Hormone and Serotonin: Implications for the Aetiology and Treatment of Anxiety...