Alliesthesia.- Auditory Prosthesis.- Auditory System.- Barrels, Vibrissae, and Topographic Representations.- Bird Navigation.- Chemotaxis, Bacterial: A Model for Sensory Receptor Systems.- Cutaneous Sensory System.- Echolocation.- Electric Organs, Fishes.- Electroreceptors and Electrosensing.- The Genital Sensory System.- Gravitational Effects on Brain and Behavior.- Hair Cells, Sensory Transduction.- Headache.- Infrared Sense.- Insect Communication,...