Neurobiology Volume Contents Vol. 55, No. 1, April 2003 Taste, Movement, and Death: Varying Effects of New prospero Mutants during Drosophila Development / 1 Yaél Grosjean, Fabien Lacaille, Angel Acebes, Johanna Clemencet, and Jean-Francois Ferveur Published online 23 January 2003 MAPK Signal Transduction Pathway Mediates Agrin Effects on Neurite Elongation in Cultured Hippocampal Neurons / 14 Lisa Karasewski and Adriana Ferreira Published online 23 January 2003 Differential Physiologic Responses of a7 Nicotinic Acetylcholine Receptors to B-Amyloid,_4) and B-Amyloid,_4, / 25 Daniel H.S. Lee and Hoau-Yan Wang Published online 3 February 2003 Myopodia (Postsynaptic Filopodia) Participate in Synaptic Target Recognition / 31 Sarah Ritzenthaler and Akira Chiba Published online 31 January 2003 Dendritic Morphology Is Altered in Hippocampal Neurons following Prenatal Compromise / 41 Sandra Dieni and Sandra Rees Published online 3 February 2003 A Gene Necessary for Normal Male Courtship, yellow, Acts Downstream of fruitless in the Drosophila melanogaster Larval Brain / 53 Mark David Drapeau, Anna Radovic, Patricia J. Wittkopp, and Anthony D. Long Published online 31 January 2003 Molecular Characterization, Functional Expression, and Developmental Profile of an Ether a-go-go K+ Channel in the Tobacco Hornworm Manduca sexta / 73 Matthew R. Keyser, Blake D. Anson, Steven A. Titus, Barry Ganetzky, and Jane L. Witten Published online 5 February 2003 The Expression of Methyl CpG Binding Factor MeCP2 Correlates with Cellular Differentiation in the Developing Rat Brain and in Cultured Cells / 86 Benjamin P. Jung, Denis G.M. Jugloff, Guangming Zhang, Richard Logan, Stephanie Brown, and James H. Eubanks Published online 5 February 2003 Amputation-Induced Activity of Progenitor Cells Leads to Rapid Regeneration of Olfactory Tissue in Lobsters / 97 Paul J. H. Harrison, Holly S. Cate, Pascal Steullet, and Charles D. Derby Published online 5 February 2003 Cover: A triple label fluorescence micrograph of a coronal section of adult rat hippocampus stained with anti-glial cell fibrillary protein (green), anti-MeCP2 (red), and the nuclear dye hoechst (blue). See the article by Jung et al. on page 86. Vol. 55, No. 2, May 2003 fruitless Gene Is Required to Maintain Neuronal Identity in evenskipped- Expressing Neurons in the Embryonic CNS of Drosophila / 115 Ho-Juhn Song and Barbara J. Taylor Published online 19 February 2003 Drosophila Neuromuscular Synapse Assembly and Function Require the TGF-6 Type I Receptor Saxophone and the Transcription Factor Mad / 134 Joel M. Rawson, Michael Lee, Eric L. Kennedy, and Scott B. Selleck Published online 19 February 2003 GDNF and Insulin Cooperate to Enhance the Proliferation and Differentiation of Enteric Crest-Derived Cells / 151 Paul J. Focke, Andrew R. Swetlik, Justin L. Schilz, and Miles L. Epstein Published online 24 February 2003 Localization of KCNC1 (Kv3.1) Potassium Channel Subunits in the Avian Auditory Nucleus Magnocellularis and Nucleus Laminaris during Development / 165 Suchitra Parameshwaran-lyer, Catherine E. Carr, and Teresa M. Perney Published online 19 February 2003 Effects of Neonatal Gonadal Steroids on Adult CA3 Pyramidal Neuron Dendritic Morphology and Spatial Memory in Rats / 179 Ceylan Isgor and Dale R. Sengelaub Published online 24 February 2003 P75 Neurotrophin Receptor Mediates Neurotrophin Activation of NF-kappa B and Induction of iNOS Expression in P19 Neurons / 191 Melanie A. Burke and Mark Bothwell Published online 4 March 2003 Expression of Estrogen Receptor and Aromatase mRNAs in Embryonic and Posthatch Zebra Finch Brain / 204 William R. Perlman and Arthur P. Arnold Published online 25 February 2003 Differential Expression of Methyl CpG-Binding Domain Containing Factor MBD3 in the Developing and Adult Rat Brain / 220 Benjamin P. Jung, Guangming Zhang, Romy Nitsch, Judy Trogadis, Sukriti Nag, and James H. Eubanks Published online 25 February 2003 Targeted Expression of Tetanus Toxin Reveals Sets of Neurons Involved in Larval Locomotion in Drosophila / 233 Maximiliano L. Suster, Jean-Rene Martin, Carl Sung, and Steven Robinow Published online 3 March 2003 Estradiol Initially Enhances but Subsequently Suppresses (via Adrenal Steroids) Granule Cell Proliferation in the Dentate Gyrus of Adult Female Rats / 247 B. K. Ormerod, T. T-Y. Lee, and L. A. M. Galea Published online 4 March 2003 Cover: Photomicrograph of Golgi-stained CA3 pyramidal neuron from a female rat treated with testosterone postnatally. Dendritic morphology of hippocampal CA3 pyramidal neurons is sexually dimorphic, and exposure to androgens postnatally masculinizes dendritic length and branch number. See the article by Isgor and Sengelaub, pages 179-190, this issue. Vol. 55, No. 3, June 2003 The Heparan Sulfate Proteoglycan Agrin Modulates Neurite Outgrowth Mediated by FGF-2 / 261 Min Jung Kim, Susan L. Cotman, Willi Halfter, and Gregory J. Cole Published online 12 March 2003 Developmental Changes in the Modulation of Respiratory Rhythm Generation by Extracellular K* in the Isolated Bullfrog Brainstem / 278 Rachel E. Winmill and Michael S. Hedrick Published online 13 March 2003 Cortical Radial Glial Cells in Human Fetuses: Depth-Correlated Transformation into Astrocytes / 288 Leonardo C. deAzevedo, Cathérine Fallet, Vivaldo Moura-Neto, Cathérine Daumas-Duport, Cecilia Hedin-Pereira, and Roberto Lent Published online 13 March 2003 Search for Cerebral G Cluster Neurons Responding to Taste Stimulation with Seaweed in Aplysia kurodai by the Use of Calcium Imaging / 299 Ryusuke Yoshida and Tatsumi Nagahama Published online 17 March 2003 Invertebrate D2 Type Dopamine Receptor Exhibits Age-Based Plasticity of Expression in the Mushroom Bodies of the Honeybee Brain / 315 Merideth A. Humphries, Julie A. Mustard, Stacey J. Hunter, Alison Mercer, Vernon Ward, and Paul R. Ebert Published online 24 March 2003 Sex Differences in Rabbit Masseter Motoneuron Firing Behavior / 331 Arthur W. English and Charles G. Widmer Published online 19 March 2003 Hygienic Behavior in the Honey Bee (Apis mellifera L.) and the Modulatory Role of Octopamine / 341 Marla Spivak, Rebecca Masterman, Rocco Ross, and Karen A. Mesce Published online 27 March 2003 Single-Cell Analysis Reveals Cell-Specific Patterns of Expression of a Family of Putative Voltage-Gated Sodium Channel Genes in the Leech / 355 Susanna E. Blackshaw, Leslie P. Henderson, Julie Malek, Donna M. Porter, Robert H. Gross, James D. Angstadt, Sarah M. Levasseur, and Robert A. Maue Published online 27 March 2003 Sex-Peptides Bind to Two Molecularly Different Targets in Drosophila melanogaster Females / 372 Zhaobing Ding, Irmgard Haussmann, Michael Ottiger, and Eric Kubli Published online 27 March 2003 Author Index to Volume 55 / 387 Subject Index to Volume 55 / 389 Volume Contents / I Cover: The establishment of the binding of Drosophila Sex-Peptides at specific sites in the central and peripheral nervous system of females parallels the development of sexual maturity in the adult fly. The cover shows a frontal cryostat section through a 2 d old female head incubated with alkaline phosphatase-Sex-Peptide fusion protein. The cross-sections of the antennal nerves (triangles) are labeled. The labeling of the compound eyes is due to unspecific background. See article by Ding et al. on page 372.