CAIN, S.D.; WOODWARD, O.H.; Friday Harbor Labs, Univ of Washington; Friday Harbor Labs, Univ of Washington: The use of multiple transmitters controlling ciliary beating on the foot on the sea slug, Tritonia diomedea The use of cilia in locomotion is limited to a few large, marine animals, most of which are nudibranchs. However, unlike muscular […]

FORSTER*, G.L.; WATT, M.J.; BLAHA, C.D.; JOSS, J.M.P.; SUMMERS, C.H.; University of South Dakota; University of South Dakota; Macquarie University, Sydney, Australia; Macquarie University, Sydney, Australia; University of South Dakota: Testosterone Increases Striatal Dopamine Release in an Australian Agamid Lizard Male Jacky Dragons (Amphibolurus muricatus) produce specific stereotyped motor displays to indicate aggression and territoriality, […]

PALMER, L. M.; MENSINGER, A. F.; University of Minnesota, Duluth; University of Minnesota, Duluth: Sensitivity of the anterior lateral line to complex stimuli in free swimming Oyster Toadfish, Opsanus tau The lateral line of fishes consists of mechanoreceptive hair cells that function in schooling behavior, localization of underwater objects, rheotaxis and prey detection. Hair cells […]

IWANIUK, A.N.; DEAN, K.M.; NELSON, J.E.; Monash University, Clayton, Australia: Comparative neuroanatomy and evolution of parrot brains (Aves: Psittaciformes). The advanced cognitive abilities of parrots have been recognized for several decades. Little is known, however, regarding the neural substrate responsible for these advanced abilities. Given that they appear to be cognitively convergent and share a […]

WINSLOW, JL; COOPER, RL; ATWOOD, HL; Univ. of Toronto; Univ. of Kentucky; Univ. of Toronto: Variations of Presynaptic Active Zones and Ca2+ Induced Transmitter Release Presynaptic terminals have synapses which contain multiple active zones (AZs) at which neurotransmitter is released. Freeze fracture micrographs of lobster neuromuscular junction show AZs within growth plateaus and containing intramembraneous […]

CRESPI, EJ; DENVER, RJ; Univ. of Michigan, Ann Arbor: Role of corticotropin-releasing hormone (CRH) in the regulation of food intake in Xenopus laevis In mammals CRH is known to be a regulator of food intake and energy balance. We tested the hypothesis that CRH is involved in the regulation of food intake in amphibians by […]

GREENWOOD, AK; FERNALD, RD; Stanford University: Electrical Properties of Gonadotropin-Releasing Hormone Neurons as a Funtion of Reproductive Status Reproductive capacity is plastic throughout the life of vertebrates on a daily, monthly and yearly basis. In the African cichlid fish Haplochromis burtoni, reproductive ability and the Hypothalamic-Pituitary-Gonadal (HPG) axis are controlled by the social environment. Adult […]

ASAY, M.J.*; BOYD, S.K.; University of Notre Dame; University of Notre Dame: Characterization of the GABAB receptor in Xenopus laevis Gamma-aminobutyric acid (GABA) is a ubiquitous inhibitory neurotransmitter. The metabotropic GABAB receptor acts via K+ and Ca2+ channels as well as adenylate cyclase to inhibit pre- and post-synaptic potentials. Although much information about the GABAB […]

LEMA, S.C.*; NEVITT, G.A.; Univ. of California, Davis: Arginine Vasotocin Modulates Social Behaviors in a Death Valley Pupfish Pupfishes in the Death Valley region inhabit remote pools and streams that have become isolated by the surrounding desert over the past 20,000 years. These aquatic habitats are ecologically diverse, and populations show considerable variation in social […]

LARSON, ET; SCHJOLDEN, J; SCHI�TH, H; LARHAMMAR, D; WINBERG, S; Uppsala University: Melanocortin peptides influence appetite in rainbow trout. Melanocortin peptides (α-MSH, β-MSH, γ-MSH, ACTH) are a series of peptides cleaved from the precursor proopiomelanocortin (POMC). In mammals, melanocortins influence appetite, learning, sexual and social behavior. Food intake in mammals is influenced via both the […]