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Cover picture: Single nucleus laminaris (NL) neurons filled with fluorescent dye using a method of single-cell electroporation and then imaged live using a multiphoton microscope. NL neurons have relatively symmetrical, bitufted dendrites, which each receive segregated excitatory inputs from the two ears via nucleus magnocellularis. As described in the paper by Sorensen and Rubel, these inputs were differentially manipulated using either deafferentation or electrophysiological stimulation while NL neurons were imaged for up to 7 h. These studies demonstrated that NL dendrites are regulated in an input-dependent manner, growing when stimulated and retracting when deprived. Additionally, balanced activation of the two sets of dendrites appeared to be required to maintain their relative sizes. For details, see the article by Sorensen and Rubel in this issue (pages 1539-1550).

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