LUTTON, B.L.*; CALLARD, I.P.; Boston University: Endocrine-Immune Interactions In The Little Skate, Leucoraja erinacea The cartilaginous fish offer a novel approach to the study of endocrine-immune interactions. In these species the gonads are directly associated with a unique lymphomyeloid tissue, the epigonal organ. It is known that steroid hormones affect both the innate and acquired […]

ROBERTS, L. F.*; O’REILLY, J. C.; WASSERSUG, R. J.; Dalhousie University, NS; University of Miami, FL; Dalhousie University, NS: The Behavioral Responses of Serpentine and Fossorial Amphibians and Reptiles to Microgravity in Parabolic Flight Although few vertebrate species have been observed in microgravity, certain behaviors are common. Most tetrapods interpret weightlessness as if they are […]

KABELIK, D.*; WEISS, S.L.; MOORE, M.C.; Arizona State University; Arizona State University; Arizona State University: Testosterone, aggression, and amygdala morphology in the tree lizard, Urosaurus ornatus How steroid hormones affect aggression is not well understood. Recent years have seen increased attention paid to the effect of steroids on plasticity of gross neural morphology, both during […]

BOORSE, GC; CRESPI, EJ; DAUTZENBERG, FM; DENVER, RJ; Univ of Michigan; Univ of Michigan; Johnson & Johnson, R&D; Univ of Michigan: Molecular cloning and analysis of Xenopus laevis urocortin 1 and urocortin 3 Vertebrates have several corticotropin-releasing factor (CRF)-like peptides that bind to and activate two G protein-coupled receptors (CRF1 and CRF2) to modulate endocrine, […]

CODDINGTON, EJ; ROSE, JD; MOORE, FL; Univ. Wyoming, Laramie; Univ. Wyoming, Laramie; Oregon State Univ., Corvallis: Endogenous Cannabinoid Signaling System Regulates Neuroendocrine Control of Behavior in an Amphibian, Taricha granulosa. Prior research has established endocannabinoid signaling as an important basic neural process, but, the physiological mechanism by which endocannabinoids regulate vertebrate behavior remains unknown. Truncated […]

CRESPI, E.J.*; VAUDRY, H.; DENVER, R.J.; Univ. of Michigan, Ann Arbor; Univ. of Rouen, France; Univ. of Michigan, Ann Arbor: Development of neuroendocrine controls of food intake in amphibians Almost all studies on the neuroendocrine controls of food intake have been conducted on juvenile or adult animals; thus, little is known about the roles of […]

JACKLET, J W; GRIZZAFFI, J; TIEMAN, D G; University at Albany; University at Albany; University at Albany: Serotonin Induces Tonic and Spike-burst Activity in Metacerebral Neurons of Aplysia. Serotonin is an important neuromodulator of Aplysia neurons. It increases excitability and broadens action potentials resulting in enhanced transmitter release from sensory neurons. Its release from serotonergic […]

DICKINSON, M; GORDON, S; IRVING, T; MAUGHAN, D; FARMAN, G; FRYE, M; BEKYAROVA, T; Caltech; UC, Berkeley; Illinois Inst. of Tech.; Univ. of Vermont; Illinois Inst. of Tech.; Caltech; Illinois Inst. of Tech.; : Regulation and Molecular Mechanics of Asynchronous Flight Muscle The extraordinary success of many insect is due in large part to the […]

HOFMANN, MH; WILKENS, LA; Univ. of Bonn, Germany; Univ. of Missouri, St. Louis: Physiology of the electrosensory system of the paddlefish Many aquatic animals use the passive electrosense to detect the weak electric fields from other animals or from geoelectric sources. Paddlefish have greatly enlarged their electrosensory system compared to other animals, with up to […]

SATTERLIE, R.A.; Univ. of North Carolina, Wilmington: In the Mood: Neurobiological Characteristics of Motivational State and Arousal in a Pteropod Mollusk Complex behavioral responses frequently depend on a combination of internal variables and external incentives that collectively contribute to modulatory influences that are referred to by many names: motivational state, drive, arousal, urge, impulse, mood, […]