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Neuroscience and Neurobiology Commons™
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Articles 31 - 46 of 46
Full-Text Articles in Neuroscience and Neurobiology
Effects Of Lesions Of The Bed Nucleus Of The Stria Terminalis, Laterual Hypothalamus, Or Insular Cortex On Conditioned Taste Aversion And Conditioned Odor Aversion, Christopher T. Roman, Nino Nebieridze, Aristides Sastre, Steve Reilly
Effects Of Lesions Of The Bed Nucleus Of The Stria Terminalis, Laterual Hypothalamus, Or Insular Cortex On Conditioned Taste Aversion And Conditioned Odor Aversion, Christopher T. Roman, Nino Nebieridze, Aristides Sastre, Steve Reilly
Scholarship and Professional Work – COPHS
The effects of permanent forebrain lesions on conditioned taste aversions (CTAs) and conditioned odor aversions (COAs) were examined in 3 experiments. In Experiment 1, lesions of the bed nucleus of the stria terminalis had no influence on CTA or COA acquisition. Although lesions of the lateral hypothalamus induced severe hypodipsia in Experiment 2, they did not prevent the acquisition of CTAs or COAs. Finally, in Experiment 3, lesions of the insular cortex retarded CTA acquisition but had no influence on COA acquisition. The implications of these findings are discussed with regard to the forebrain influence on parabrachial nucleus function during …
Behavioral And Neurochemical Responses To Cocaine In Periadolescent And Adult Rats, Laura O'Dell
Behavioral And Neurochemical Responses To Cocaine In Periadolescent And Adult Rats, Laura O'Dell
Departmental Papers (Psych)
No abstract provided.
Corticotropin-Releasing Factor Within The Central Nucleus Of The Amygdala Mediates Enhanced Ethanol Self-Administration In Ethanol-Dependent Rats During Withdrawal., Laura O'Dell
Departmental Papers (Psych)
No abstract provided.
Biphasic Alterations In Serotonin1b (5-Ht1b) Receptor Function During Abstinence From Extended Cocaine Self-Administration, Laura O'Dell
Biphasic Alterations In Serotonin1b (5-Ht1b) Receptor Function During Abstinence From Extended Cocaine Self-Administration, Laura O'Dell
Departmental Papers (Psych)
No abstract provided.
Extended Access To Nicotine Self-Administration Leads To Dependence: Circadian Measures, Withdrawal Measures, And Extinction Behavior In Rats, Laura O'Dell
Departmental Papers (Psych)
No abstract provided.
Unlimited Access To Heroin Self-Administration: Independent Motivational Markers Of Opiate Dependence, Laura O'Dell
Unlimited Access To Heroin Self-Administration: Independent Motivational Markers Of Opiate Dependence, Laura O'Dell
Departmental Papers (Psych)
No abstract provided.
Neuroscholar’S Electronic Laboratory Notebook And Its Application To Neuroendocrinology, Khan, Joel Hahn, We-Cheng Cheng, Alan Watts, Gully Burns
Neuroscholar’S Electronic Laboratory Notebook And Its Application To Neuroendocrinology, Khan, Joel Hahn, We-Cheng Cheng, Alan Watts, Gully Burns
Departmental Papers (Biology)
No abstract provided.
The Effect Of Handling Time On Temporal Discounting In Two New World Primates, Alexandra G. Rosati, Jeffrey R. Stevens, Marc D. Hauser
The Effect Of Handling Time On Temporal Discounting In Two New World Primates, Alexandra G. Rosati, Jeffrey R. Stevens, Marc D. Hauser
Center for Brain, Biology, and Behavior: Faculty Publications
Foraging decisions in nonhuman animals often require choosing between small, immediate food rewards and larger, more delayed rewards. Faced with such choices, animals typically discount or devalue the future quite strongly. Although discounting studies often focus on delays to reward access, other temporal intervals contribute to foraging rate, and thus may potentially influence discounting levels. Here, we examine the effect of handling time, the time required to process and consume food, on discounting in cottontop tamarins, Saguinus oedipus, and common marmosets, Callithrix jacchus, two species that differ in levels of temporal discounting. We presented subjects with a discounting task under …
Neuronal Pentraxins Mediate Synaptic Refinement In The Developing Visual System, Lisa Bjartmar, Andrew Huberman, Erik Ullian, Rene Renterıa, Xiaoqin Liu, Weifeng Xu, Jennifer Prezioso, Michael Susman, David Stellwagen, Caleb Stokes, Richard Cho, Paul Worley, Robert Malenka, Sherry Ball, Neal Peachey, David Copenhagen, Barbara Chapman, Masaru Nakamoto, Ben Barres, Mark Perin
Neuronal Pentraxins Mediate Synaptic Refinement In The Developing Visual System, Lisa Bjartmar, Andrew Huberman, Erik Ullian, Rene Renterıa, Xiaoqin Liu, Weifeng Xu, Jennifer Prezioso, Michael Susman, David Stellwagen, Caleb Stokes, Richard Cho, Paul Worley, Robert Malenka, Sherry Ball, Neal Peachey, David Copenhagen, Barbara Chapman, Masaru Nakamoto, Ben Barres, Mark Perin
Biology Faculty Publications
Neuronal pentraxins (NPs) define a family of proteins that are homologous to C-reactive and acute-phase proteins in the immune system and have been hypothesized to be involved in activity-dependent synaptic plasticity. To investigate the role of NPs in vivo , we generated mice that lack one, two, or all three NPs. NP1/2 knock-out mice exhibited defects in the segregation of eye-specific retinal ganglion cell (RGC) projections to the dorsal lateral geniculate nucleus, a process that involves activity-dependent synapse formation and elimination. Retinas from mice lacking NP1 and NP2 had cholinergically driven waves of activity that occurred at a frequency similar …
Behavioural Genetics In Criminal Cases: Past, Present And Future, Nita A. Farahany, William Bernet
Behavioural Genetics In Criminal Cases: Past, Present And Future, Nita A. Farahany, William Bernet
Faculty Scholarship
Researchers studying human behavioral genetics have made significant scientific progress in enhancing our understanding of the relative contributions of genetics and the environment in observed variations in human behavior. Quickly outpacing the advances in the science are its applications in the criminal justice system. Already, human behavioral genetics research has been introduced in the U.S. criminal justice system, and its use will only become more prevalent. This essay discusses the recent historical use of behavioral genetics in criminal cases, recent advances in two gene variants of particular interest in the criminal law, MAOA and SLC6A4, the recent expert testimony on …
Axon Guidance Autonomy And Tensional Requirement For Synaptic Function: Is Learning A Forced Response?, Scott Siechen
Axon Guidance Autonomy And Tensional Requirement For Synaptic Function: Is Learning A Forced Response?, Scott Siechen
Natural Science Faculty
Individual neurons extend multiple processes whose growth cones exhibit different responses to their environment. In culture, detached growth cones display guidance autonomy, contain mRNA for cytoskeletal and other axonal components, and are capable of synthesizing protein locally. However, the extent to which growth cone's autonomy contributes to its pathfinding function within the complex in vivo environment is unknown. Here, we show that detached axonal growth cones from identified Drosophila motoneurons maintain balanced filopodial activities as they extend, navigate and target postsynaptic partner cells normally. After detachment, the growth cones continue to synthesize the synaptic vesicle protein Synaptotagmin but, upon contacting …
Diminished Nicotine Withdrawal In Adolescent Rats: Implications For Vulnerability To Addiction, Laura O'Dell
Diminished Nicotine Withdrawal In Adolescent Rats: Implications For Vulnerability To Addiction, Laura O'Dell
Departmental Papers (Psych)
No abstract provided.
Associative Memory In Three Aplysiids: Correlation With Heterosynaptic Modulation, Brian A. Hoover, Hoang Nguyen, Laura Thompson, William G. Wright
Associative Memory In Three Aplysiids: Correlation With Heterosynaptic Modulation, Brian A. Hoover, Hoang Nguyen, Laura Thompson, William G. Wright
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Much recent research on mechanisms of learning and memory focuses on the role of heterosynaptic neuromodulatory signaling. Such neuromodulation appears to stabilize Hebbian synaptic changes underlying associative learning, thereby extending memory. Previous comparisons of three related sea-hares ( Mollusca, Opisthobranchia) uncovered interspecific variation in neuromodulatory signaling: strong in Aplysia californica, immeasureable in Dolabrifera dolabrifera, and intermediate in Phyllaplysia taylori. The present study addressed whether this interspecific variation in neuromodulation is correlated with memory of associative ( classical conditioning) learning. We differentially conditioned the tail-mantle withdrawal reflex of each of the three species: Mild touch to one side of the tail …
The Effect Of Tgf-B And Egf On Mmp-2 Activation And Mt1-Mmp Phosphorylation In U87mg And T98g Human Glioma Cells, Jacquelyn B. Knupp
The Effect Of Tgf-B And Egf On Mmp-2 Activation And Mt1-Mmp Phosphorylation In U87mg And T98g Human Glioma Cells, Jacquelyn B. Knupp
Honors Theses
Glioblastoma multiforme (GBM), a high-grade, malignant brain tumor of astrocyte origin, invades normal brain tissue and most often results in death ofthe patient withinayearofdiagnosis. In order to invade the surrounding tissue and thereby metastasize, these tumor cells must migrate through the extracellular matrix. The pmpose ofthis research project is to investigate the family ofmatrix metalloproteinases responsible for extracellular degradation. Specifically, this investigation looks at MMP-2 activation via MT 1-MMP and the possible importance of phosphorylation of the tyrosine residue on the cytoplasmic tail of MTl-MMP. U87wildtypegliomacellsaswellasT98 p53 mutant glioma cells were treated with transforming growth factor beta (TGF-P). Preliminary results …
Effects Of Gesture+Verbal Treatment For Noun And Verb Retrieval In Aphasia, Anastasia M. Raymer, Floris Singletary, Amy Rodriguez, Maribel Ciampitti, Kenneth M. Heilman, Leslie J. Gonzalez Rothi
Effects Of Gesture+Verbal Treatment For Noun And Verb Retrieval In Aphasia, Anastasia M. Raymer, Floris Singletary, Amy Rodriguez, Maribel Ciampitti, Kenneth M. Heilman, Leslie J. Gonzalez Rothi
Communication Disorders & Special Education Faculty Publications
Links between verbs and gesture knowledge suggest that verb retrieval may be particularly amenable to gesture+verbal training (GVT) in aphasia compared to noun retrieval. This study examines effects of GVT for noun and verb retrieval in nine individuals with aphasia subsequent to left hemisphere stroke. Participants presented an array of noun and verb retrieval deficits, including impairments of semantic and/or phonologic processing. In a single-participant experimental design, we investigated effects of GVT for noun and verb retrieval in two counterbalanced treatment phases. Effects were evaluated in spoken naming and gesture production to pictured objects and actions. Spoken naming improvements associated …
Glucocorticoid Hormone Levels Increase With Group Size And Parasite Load In Cliff Swallows, Samrrah A. Raouf, Linda C. Smith, Mary Bomberger Brown, John C. Wingfield, Charles R. Brown
Glucocorticoid Hormone Levels Increase With Group Size And Parasite Load In Cliff Swallows, Samrrah A. Raouf, Linda C. Smith, Mary Bomberger Brown, John C. Wingfield, Charles R. Brown
School of Biological Sciences: Faculty Publications
Animals often cope with adverse events by releasing glucocorticoid hormones, which in turn promote increased energy assimilation. In captive animals, crowding also leads to increased glucocorticoid activity, probably because of increased levels of social competition. We investigated how group size and ectoparasite infestations affected endogenous levels of the glucocorticoid hormone, corticosterone, in colonial cliff swallows, Petrochelidon pyrrhonota, in southwestern Nebraska, USA. Parasites were removed from some colonies by fumigating nests. Baseline levels of corticosterone in breeding adults varied significantly with whether parasites were present, colony size (measured by total number of active nests at a site), and nesting stage. …