This resource describes the following topics: The Auditory System, The Human Ear, Cochlear mechanics: Frequency Analysis, Hair Cells: Mechano-electric Transduction, Auditory Nerve: Frequency Selectivity, Auditory Nerve: Frequency map (tonotopy), Auditory Nerve: Phase locking, The ascending auditory pathway, Cochlear Nucleus: Parallel processing paths, Superior olivary complex: Binaural processing of time and level differences, Inferior Colliculus: Convergence and reorganization, Auditory cortex: Subdivisions and processing streams, fMRI activation of the human auditory system, Auditory Cortex: Plasticity, Functions of Hearing, Subjective and objective variables, Frequency Selectivity in Hearing, Masking, Issues of Masking and Nonlinearity, Binaural and Spatial Hearing, Pitch and Temporal Coding, Auditory Object and Stream Formation, and References.