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- Brain and Mind Institute Researchers' Publications (54)
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Articles 1 - 30 of 116
Full-Text Articles in Medicine and Health Sciences
The Mouse Colony, Katerina Tsiopos
Can Animals Contract?, John Enman-Beech
Can Animals Contract?, John Enman-Beech
Animal Studies Journal
Animals are, or are like persons, and so should not be treated as mere property. But persons are not just non-property; they are contractors. They interact with property and with other persons. This article analyses the possibilities for a range of animals to fit within market liberal society as contractors from a legal disciplinary perspective. Some animals are capable of contract-like relationships of reciprocal exchange, and can consent, in a certain sense, to parts of such relationships. However, the dangers of the contractual frame, which is used to legitimate exploitation, may exceed the benefits. Some scholars have begun to explore …
No Statistical Learning Advantage In Children Over Adults: Evidence From Behaviour And Neural Entrainment., Christine N Moreau, Marc F. Joanisse, Jerrica Mulgrew, Laura J. Batterink
No Statistical Learning Advantage In Children Over Adults: Evidence From Behaviour And Neural Entrainment., Christine N Moreau, Marc F. Joanisse, Jerrica Mulgrew, Laura J. Batterink
Brain and Mind Institute Researchers' Publications
Explicit recognition measures of statistical learning (SL) suggest that children and adults have similar linguistic SL abilities. However, explicit tasks recruit additional cognitive processes that are not directly relevant for SL and may thus underestimate children's true SL capacities. In contrast, implicit tasks and neural measures of SL should be less influenced by explicit, higher-level cognitive abilities and thus may be better suited to capturing developmental differences in SL. Here, we assessed SL to six minutes of an artificial language in English-speaking children (n = 56, 24 females, M = 9.98 years) and adults (n = 44; 31 females, M …
The Earth Biogenome Project 2020: Starting The Clock., Harris A Lewin, Stephen Richards, Erez Lieberman Aiden, Miguel L Allende, John M Archibald, Miklós Bálint, Katharine B Barker, Bridget Baumgartner, Katherine Belov, Giorgio Bertorelle, Mark L Blaxter, Jing Cai, Nicolette D Caperello, Keith Carlson, Juan Carlos Castilla-Rubio, Shu-Miaw Chaw, Lei Chen, Anna K Childers, Jonathan A Coddington, Dalia A Conde, Montserrat Corominas, Keith A. Crandall, Andrew J Crawford, Federica Dipalma, Richard Durbin, Thankgod E Ebenezer, Scott V Edwards, Olivier Fedrigo, Paul Flicek, Giulio Formenti, Richard A Gibbs, M Thomas P Gilbert, Melissa M. Goldstein, Jennifer Marshall Graves, Henry T Greely, Igor V Grigoriev, Kevin J Hackett, Neil Hall, David Haussler, Kristofer M Helgen, Carolyn J Hogg, Sachiko Isobe, Kjetill Sigurd Jakobsen, Axel Janke, Erich D Jarvis, Warren E Johnson, Steven J M Jones, Elinor K Karlsson, Paul J Kersey, Jin-Hyoung Kim, W John Kress, Shigehiro Kuraku, Mara K N Lawniczak, James H Leebens-Mack, Xueyan Li, Kerstin Lindblad-Toh, Xin Liu, Jose V Lopez, Tomas Marques-Bonet, Sophie Mazard, Jonna A K Mazet, Camila J Mazzoni, Eugene W Myers, Rachel J O'Neill, Sadye Paez, Hyun Park, Gene E Robinson, Cristina Roquet, Oliver A Ryder, Jamal S M Sabir, H Bradley Shaffer, Timothy M Shank, Jacob S Sherkow, Pamela S Soltis, Boping Tang, Leho Tedersoo, Marcela Uliano-Silva, Kun Wang, Xiaofeng Wei, Regina Wetzer, Julia L Wilson, Xun Xu, Huanming Yang, Anne D Yoder, Guojie Zhang
The Earth Biogenome Project 2020: Starting The Clock., Harris A Lewin, Stephen Richards, Erez Lieberman Aiden, Miguel L Allende, John M Archibald, Miklós Bálint, Katharine B Barker, Bridget Baumgartner, Katherine Belov, Giorgio Bertorelle, Mark L Blaxter, Jing Cai, Nicolette D Caperello, Keith Carlson, Juan Carlos Castilla-Rubio, Shu-Miaw Chaw, Lei Chen, Anna K Childers, Jonathan A Coddington, Dalia A Conde, Montserrat Corominas, Keith A. Crandall, Andrew J Crawford, Federica Dipalma, Richard Durbin, Thankgod E Ebenezer, Scott V Edwards, Olivier Fedrigo, Paul Flicek, Giulio Formenti, Richard A Gibbs, M Thomas P Gilbert, Melissa M. Goldstein, Jennifer Marshall Graves, Henry T Greely, Igor V Grigoriev, Kevin J Hackett, Neil Hall, David Haussler, Kristofer M Helgen, Carolyn J Hogg, Sachiko Isobe, Kjetill Sigurd Jakobsen, Axel Janke, Erich D Jarvis, Warren E Johnson, Steven J M Jones, Elinor K Karlsson, Paul J Kersey, Jin-Hyoung Kim, W John Kress, Shigehiro Kuraku, Mara K N Lawniczak, James H Leebens-Mack, Xueyan Li, Kerstin Lindblad-Toh, Xin Liu, Jose V Lopez, Tomas Marques-Bonet, Sophie Mazard, Jonna A K Mazet, Camila J Mazzoni, Eugene W Myers, Rachel J O'Neill, Sadye Paez, Hyun Park, Gene E Robinson, Cristina Roquet, Oliver A Ryder, Jamal S M Sabir, H Bradley Shaffer, Timothy M Shank, Jacob S Sherkow, Pamela S Soltis, Boping Tang, Leho Tedersoo, Marcela Uliano-Silva, Kun Wang, Xiaofeng Wei, Regina Wetzer, Julia L Wilson, Xun Xu, Huanming Yang, Anne D Yoder, Guojie Zhang
Health Policy and Management Faculty Publications
No abstract provided.
Mutual Rescue: Disabled Animals And Their Caretakers, Lynda Birke, Lori Gruen
Mutual Rescue: Disabled Animals And Their Caretakers, Lynda Birke, Lori Gruen
Animal Studies Journal
In this paper, we explore how caretakers experience living with disabled companion animals. Drawing on interviews, as well as narratives on websites and other support groups, we examine ways in which caretakers describe the lives of animals they live with, and their various disabilties. The animals were mostly dogs, plus a few cats, with a range of physical disabilities; almost all had been rehomed, often from places specializing in homing disabled animals.
Three themes emerged from analysis of these texts: first, respondents drew heavily on the common narrative of disabled individuals as heroes, often noted in disability rights literature – …
Empathy, Animals, And Deadly Vices, Kathie Jenni
Empathy, Animals, And Deadly Vices, Kathie Jenni
Animal Studies Journal
In Deadly Vices, Gabriele Taylor provides a secular analysis of vices which in Christian theology were thought to bring death to the soul: sloth, envy, avarice, pride, anger, lust, and gluttony. She argues that these vices are appropriately singled out and grouped together in that ‘they are destructive of the self and prevent its flourishing’. Using a related approach, I offer a secular analysis of gluttony and cowardice, examining their roles in common failures to empathise with animals. I argue that these vices constitute serious moral failings, for they enable continuing complicity in animal abuse and undermine integrity. While Taylor …
Animals In Drama And Theatrical Performance: Anthropocentric Emotionalism, Peta Tait
Animals In Drama And Theatrical Performance: Anthropocentric Emotionalism, Peta Tait
Animal Studies Journal
This article outlines how nonhuman animals are framed by the emotions of drama, theatre and contemporary performance and considers a distinctive tradition in western culture of enacting animal characters who function as surrogate humans. It argues that, contradictorily, while animal characters confirm anthropocentric emotionalism, drama also contains pro-animal values and concern for animal welfare. Animals embodying emotions in theatrical languages are part of the way animals are used in the traditions of western culture and to think and philosophize with, but they also indicate thinking about the emotions in theatrical performance. The article considers if, however, staging living animals can …
Law Library Blog (May 2020): Legal Beagle's Blog Archive, Roger Williams University School Of Law
Law Library Blog (May 2020): Legal Beagle's Blog Archive, Roger Williams University School Of Law
Law Library Newsletters/Blog
No abstract provided.
Law Library Blog (December 2019): Legal Beagle's Blog Archive, Roger Williams University School Of Law
Law Library Blog (December 2019): Legal Beagle's Blog Archive, Roger Williams University School Of Law
Law Library Newsletters/Blog
No abstract provided.
A Consensus Guide To Capturing The Ability To Inhibit Actions And Impulsive Behaviors In The Stop-Signal Task., Frederick Verbruggen, Adam R Aron, Guido Ph Band, Christian Beste, Patrick G Bissett, Adam T Brockett, Joshua W Brown, Samuel R Chamberlain, Christopher D Chambers, Hans Colonius, Lorenza S Colzato, Brian D Corneil, James P Coxon, Annie Dupuis, Dawn M Eagle, Hugh Garavan, Ian Greenhouse, Andrew Heathcote, René J Huster, Sara Jahfari, J Leon Kenemans, Inge Leunissen, Chiang-Shan R Li, Gordon D Logan, Dora Matzke, Sharon Morein-Zamir, Aditya Murthy, Martin Paré, Russell A Poldrack, K Richard Ridderinkhof, Trevor W Robbins, Matthew Roesch, Katya Rubia, Russell J Schachar, Jeffrey D Schall, Ann-Kathrin Stock, Nicole C Swann, Katharine N Thakkar, Maurits W Van Der Molen, Luc Vermeylen, Matthijs Vink, Jan R Wessel, Robert Whelan, Bram B Zandbelt, C Nico Boehler
A Consensus Guide To Capturing The Ability To Inhibit Actions And Impulsive Behaviors In The Stop-Signal Task., Frederick Verbruggen, Adam R Aron, Guido Ph Band, Christian Beste, Patrick G Bissett, Adam T Brockett, Joshua W Brown, Samuel R Chamberlain, Christopher D Chambers, Hans Colonius, Lorenza S Colzato, Brian D Corneil, James P Coxon, Annie Dupuis, Dawn M Eagle, Hugh Garavan, Ian Greenhouse, Andrew Heathcote, René J Huster, Sara Jahfari, J Leon Kenemans, Inge Leunissen, Chiang-Shan R Li, Gordon D Logan, Dora Matzke, Sharon Morein-Zamir, Aditya Murthy, Martin Paré, Russell A Poldrack, K Richard Ridderinkhof, Trevor W Robbins, Matthew Roesch, Katya Rubia, Russell J Schachar, Jeffrey D Schall, Ann-Kathrin Stock, Nicole C Swann, Katharine N Thakkar, Maurits W Van Der Molen, Luc Vermeylen, Matthijs Vink, Jan R Wessel, Robert Whelan, Bram B Zandbelt, C Nico Boehler
Brain and Mind Institute Researchers' Publications
Response inhibition is essential for navigating everyday life. Its derailment is considered integral to numerous neurological and psychiatric disorders, and more generally, to a wide range of behavioral and health problems. Response-inhibition efficiency furthermore correlates with treatment outcome in some of these conditions. The stop-signal task is an essential tool to determine how quickly response inhibition is implemented. Despite its apparent simplicity, there are many features (ranging from task design to data analysis) that vary across studies in ways that can easily compromise the validity of the obtained results. Our goal is to facilitate a more accurate use of the …
Modified Origins Of Cortical Projections To The Superior Colliculus In The Deaf: Dispersion Of Auditory Efferents., Blake E Butler, Julia K Sunstrum, Stephen G Lomber
Modified Origins Of Cortical Projections To The Superior Colliculus In The Deaf: Dispersion Of Auditory Efferents., Blake E Butler, Julia K Sunstrum, Stephen G Lomber
Brain and Mind Institute Researchers' Publications
Following the loss of a sensory modality, such as deafness or blindness, crossmodal plasticity is commonly identified in regions of the cerebrum that normally process the deprived modality. It has been hypothesized that significant changes in the patterns of cortical afferent and efferent projections may underlie these functional crossmodal changes. However, studies of thalamocortical and corticocortical connections have refuted this hypothesis, instead revealing a profound resilience of cortical afferent projections following deafness and blindness. This report is the first study of cortical outputs following sensory deprivation, characterizing cortical projections to the superior colliculus in mature cats (
Cortical And Thalamic Connectivity To The Second Auditory Cortex Of The Cat Is Resilient To The Onset Of Deafness., Blake E Butler, Alexandra De La Rua, Taylor Ward-Able, Stephen G Lomber
Cortical And Thalamic Connectivity To The Second Auditory Cortex Of The Cat Is Resilient To The Onset Of Deafness., Blake E Butler, Alexandra De La Rua, Taylor Ward-Able, Stephen G Lomber
Brain and Mind Institute Researchers' Publications
It has been well established that following sensory loss, cortical areas that would normally be involved in perceiving stimuli in the absent modality are recruited to subserve the remaining senses. Despite this compensatory functional reorganization, there is little evidence to date for any substantial change in the patterns of anatomical connectivity between sensory cortices. However, while many auditory areas are contracted in the deaf, the second auditory cortex (A2) of the cat undergoes a volumetric expansion following hearing loss, suggesting this cortical area may demonstrate a region-specific pattern of structural reorganization. To address this hypothesis, and to complement existing literature …
Modified Single Prolonged Stress Reduces Cocaine Self-Administration During Acquisition Regardless Of Rearing Environment, Rebecca S. Hofford, Mark A. Prendergast, Michael T. Bardo
Modified Single Prolonged Stress Reduces Cocaine Self-Administration During Acquisition Regardless Of Rearing Environment, Rebecca S. Hofford, Mark A. Prendergast, Michael T. Bardo
Psychology Faculty Publications
Until recently, there were few rodent models available to study the interaction of post-traumatic stress disorder (PTSD) and drug taking. Like PTSD, single prolonged stress (SPS) produces hypothalamic-pituitary-adrenal (HPA) axis dysfunction and alters psychostimulant self-administration. Other stressors, such as isolation stress, also alter psychostimulant self-administration. However, it is currently unknown if isolation housing combined with SPS can alter the acquisition or maintenance of cocaine self-administration. The current study applied modified SPS (modSPS; two hours restraint immediately followed by cold swim stress) to rats raised in an isolation condition (Iso), enrichment condition (Enr), or standard condition (Std) to measure changes in …
Effects Of Environmental Enrichment On Self-Administration Of The Short-Acting Opioid Remifentanil In Male Rats, Rebecca S. Hofford, Jonathan J. Chow, Joshua S. Beckmann, Michael T. Bardo
Effects Of Environmental Enrichment On Self-Administration Of The Short-Acting Opioid Remifentanil In Male Rats, Rebecca S. Hofford, Jonathan J. Chow, Joshua S. Beckmann, Michael T. Bardo
Psychology Faculty Publications
Background
Opioid abuse is a major problem around the world. Identifying environmental factors that contribute to opioid abuse and addiction is necessary for decreasing this epidemic. In rodents, environmental enrichment protects against the development of low dose stimulant self-administration, but studies examining the effect of enrichment and isolation (compared to standard housing) on the development of intravenous opioid self-administration have not been conducted. The present study investigated the role of environmental enrichment on self-administration of the short-acting μ-opioid remifentanil.
Methods
Rats were raised in an enriched condition (Enr), standard condition (Std), or isolated condition (Iso) beginning at 21 days of …
The Effects Of Nicotine In The Neonatal Quinpirole Rodent Model Of Psychosis: Neural Plasticity Mechanisms And Nicotinic Receptor Changes, Daniel J. Peterson, W. Drew Gill, John M. Dose, Donald B. Hoover, James R. Pauly, Elizabeth D. Cummins, Katherine C. Burgess, Russell W. Brown
The Effects Of Nicotine In The Neonatal Quinpirole Rodent Model Of Psychosis: Neural Plasticity Mechanisms And Nicotinic Receptor Changes, Daniel J. Peterson, W. Drew Gill, John M. Dose, Donald B. Hoover, James R. Pauly, Elizabeth D. Cummins, Katherine C. Burgess, Russell W. Brown
Pharmaceutical Sciences Faculty Publications
Neonatal quinpirole (NQ) treatment to rats increases dopamine D2 receptor sensitivity persistent throughout the animal’s lifetime. In Experiment 1, we analyzed the role of α7 and α4β2 nicotinic receptors (nAChRs) in nicotine behavioral sensitization and on the brain-derived neurotrophic factor (BDNF) response to nicotine in NQ- and neonatally saline (NS)-treated rats. In Experiment 2, we analyzed changes in α7 and α4β2 nAChR density in the nucleus accumbens (NAcc) and dorsal striatum in NQ and NS animals sensitized to nicotine. Male and female Sprague-Dawley rats were neonatally treated with quinpirole (1 mg/kg) or saline from postnatal days (P)1–21. Animals were given …
Single-Trait And Multi-Trait Genome-Wide Association Analyses Identify Novel Loci For Blood Pressure In African-Ancestry Populations, Jingjing Liang, Thu H. Le, Digna R. Velez Edwards, Bamidele O. Tayo, Kyle J. Gaulton, Jennifer A. Smith, Yingchang Lu, Richard A. Jensen, Guanjie Chen, Lisa R. Yanek, Karen Schwander, Salman M. Tajuddin, Tamar Sofer, Wonji Kim, James Kayima, Colin A. Mckenzie, Ervin Fox, Michael A. Nalls, J. Hunter Young, Yan V. Sun, Jacqueline M. Lane, Sylvia Cechova, Jie Zhou, Hua Tang, Myriam Fornage, Solomon K. Musani, Heming Wang, Juyoung Lee, Adebowale Adeyemo, Albert W. Dreisbach, Donna K. Arnett
Single-Trait And Multi-Trait Genome-Wide Association Analyses Identify Novel Loci For Blood Pressure In African-Ancestry Populations, Jingjing Liang, Thu H. Le, Digna R. Velez Edwards, Bamidele O. Tayo, Kyle J. Gaulton, Jennifer A. Smith, Yingchang Lu, Richard A. Jensen, Guanjie Chen, Lisa R. Yanek, Karen Schwander, Salman M. Tajuddin, Tamar Sofer, Wonji Kim, James Kayima, Colin A. Mckenzie, Ervin Fox, Michael A. Nalls, J. Hunter Young, Yan V. Sun, Jacqueline M. Lane, Sylvia Cechova, Jie Zhou, Hua Tang, Myriam Fornage, Solomon K. Musani, Heming Wang, Juyoung Lee, Adebowale Adeyemo, Albert W. Dreisbach, Donna K. Arnett
Epidemiology and Environmental Health Faculty Publications
Hypertension is a leading cause of global disease, mortality, and disability. While individuals of African descent suffer a disproportionate burden of hypertension and its complications, they have been underrepresented in genetic studies. To identify novel susceptibility loci for blood pressure and hypertension in people of African ancestry, we performed both single and multiple-trait genome-wide association analyses. We analyzed 21 genome-wide association studies comprised of 31,968 individuals of African ancestry, and validated our results with additional 54,395 individuals from multi-ethnic studies. These analyses identified nine loci with eleven independent variants which reached genome-wide significance (P < 1.25×10−8) for either systolic and …
Sensory Processing In Autism Spectrum Disorders And Fragile X Syndrome-From The Clinic To Animal Models., D Sinclair, B Oranje, K A Razak, S J Siegel, S Schmid
Sensory Processing In Autism Spectrum Disorders And Fragile X Syndrome-From The Clinic To Animal Models., D Sinclair, B Oranje, K A Razak, S J Siegel, S Schmid
Brain and Mind Institute Researchers' Publications
Brains are constantly flooded with sensory information that needs to be filtered at the pre-attentional level and integrated into endogenous activity in order to allow for detection of salient information and an appropriate behavioral response. People with Autism Spectrum Disorder (ASD) or Fragile X Syndrome (FXS) are often over- or under-reactive to stimulation, leading to a wide range of behavioral symptoms. This altered sensitivity may be caused by disrupted sensory processing, signal integration and/or gating, and is often being neglected. Here, we review translational experimental approaches that are used to investigate sensory processing in humans with ASD and FXS, and …
Bk Channels Mediate Synaptic Plasticity Underlying Habituation In Rats., Tariq Zaman, Cleusa De Oliveira, Mahabba Smoka, Chakravarthi Narla, Michael O Poulter, Susanne Schmid
Bk Channels Mediate Synaptic Plasticity Underlying Habituation In Rats., Tariq Zaman, Cleusa De Oliveira, Mahabba Smoka, Chakravarthi Narla, Michael O Poulter, Susanne Schmid
Brain and Mind Institute Researchers' Publications
Habituation is a basic form of implicit learning and represents a sensory filter that is disrupted in autism, schizophrenia, and several other mental disorders. Despite extensive research in the past decades on habituation of startle and other escape responses, the underlying neural mechanisms are still not fully understood. There is evidence from previous studies indicating that BK channels might play a critical role in habituation. We here used a wide array of approaches to test this hypothesis. We show that BK channel activation and subsequent phosphorylation of these channels are essential for synaptic depression presumably underlying startle habituation in rats, …
Retention Of Normal Glia Function By An Isoform-Selective Protein Kinase Inhibitor Drug Candidate That Modulates Cytokine Production And Cognitive Outcomes, Zhengqiu Zhou, Adam D. Bachstetter, Claudia B. Späni, Saktimayee M. Roy, D. Martin Watterson, Linda J. Van Eldik
Retention Of Normal Glia Function By An Isoform-Selective Protein Kinase Inhibitor Drug Candidate That Modulates Cytokine Production And Cognitive Outcomes, Zhengqiu Zhou, Adam D. Bachstetter, Claudia B. Späni, Saktimayee M. Roy, D. Martin Watterson, Linda J. Van Eldik
Sanders-Brown Center on Aging Faculty Publications
Background: Brain p38α mitogen-activated protein kinase (MAPK), a potential therapeutic target for cognitive dysfunction based on the neuroinflammation-synaptic dysfunction cycle of pathophysiology progression, offers an innovative pharmacological strategy via inhibiting the same activated target in both glia and neurons, thereby enhancing the possibility for efficacy. The highly selective, brain-penetrant p38αMAPK inhibitor MW150 attenuates cognitive dysfunction in two distinct Alzheimer's disease (AD)-relevant models and avoids the problems encountered with previous mixed-kinase inhibitor drug candidates. Therefore, it is essential that the glial effects of this CNS-active kinase inhibitor be addressed in order to anticipate future use in clinical investigations.
Methods: …
Adolescent Cannabinoid Exposure Induces A Persistent Sub-Cortical Hyper-Dopaminergic State And Associated Molecular Adaptations In The Prefrontal Cortex., Justine Renard, Laura G Rosen, Michael Loureiro, Cleusa De Oliveira, Susanne Schmid, Walter J Rushlow, Steven R Laviolette
Adolescent Cannabinoid Exposure Induces A Persistent Sub-Cortical Hyper-Dopaminergic State And Associated Molecular Adaptations In The Prefrontal Cortex., Justine Renard, Laura G Rosen, Michael Loureiro, Cleusa De Oliveira, Susanne Schmid, Walter J Rushlow, Steven R Laviolette
Brain and Mind Institute Researchers' Publications
Considerable evidence suggests that adolescent exposure to delta-9-tetrahydrocanabinol (THC), the psychoactive component in marijuana, increases the risk of developing schizophrenia-related symptoms in early adulthood. In the present study, we used a combination of behavioral and molecular analyses with in vivo neuronal electrophysiology to compare the long-term effects of adolescent versus adulthood THC exposure in rats. We report that adolescent, but not adult, THC exposure induces long-term neuropsychiatric-like phenotypes similar to those observed in clinical populations. Thus, adolescent THC exposure induced behavioral abnormalities resembling positive and negative schizophrenia-related endophenotypes and a state of neuronal hyperactivity in the mesocorticolimbic dopamine (DA) pathway. …
Hippocampal Neurogenesis And Volume In Migrating And Wintering Semipalmated Sandpipers (Calidris Pusilla)., Nara Gyzely De Morais Magalhães, Cristovam Guerreiro Diniz, Daniel Guerreiro Diniz, Ediely Pereira Henrique, Patrick Douglas Corrêa Pereira, Isis Ananda Matos Moraes, Mauro André Damasceno De Melo, David Francis Sherry, Cristovam Wanderley Picanço Diniz
Hippocampal Neurogenesis And Volume In Migrating And Wintering Semipalmated Sandpipers (Calidris Pusilla)., Nara Gyzely De Morais Magalhães, Cristovam Guerreiro Diniz, Daniel Guerreiro Diniz, Ediely Pereira Henrique, Patrick Douglas Corrêa Pereira, Isis Ananda Matos Moraes, Mauro André Damasceno De Melo, David Francis Sherry, Cristovam Wanderley Picanço Diniz
Brain and Mind Institute Researchers' Publications
Long distance migratory birds find their way by sensing and integrating information from a large number of cues in their environment. These cues are essential to navigate over thousands of kilometers and reach the same breeding, stopover, and wintering sites every year. The semipalmated sandpiper (Calidris pusilla) is a long-distance migrant that breeds in the arctic tundra of Canada and Alaska and winters on the northeast coast of South America. Its fall migration includes a 5,300-kilometer nonstop flight over the Atlantic Ocean. The avian hippocampus has been proposed to play a central role in the integration of multisensory spatial information …
Are There Place Cells In The Avian Hippocampus?, David F Sherry, Stephanie L Grella, Mélanie F Guigueno, David J White, Diano F Marrone
Are There Place Cells In The Avian Hippocampus?, David F Sherry, Stephanie L Grella, Mélanie F Guigueno, David J White, Diano F Marrone
Brain and Mind Institute Researchers' Publications
Birds possess a hippocampus that serves many of the same spatial and mnemonic functions as the mammalian hippocampus but achieves these outcomes with a dramatically different neuroanatomical organization. The properties of spatially responsive neurons in birds and mammals are also different. Much of the contemporary interest in the role of the mammalian hippocampus in spatial representation dates to the discovery of place cells in the rat hippocampus. Since that time, cells that respond to head direction and cells that encode a grid-like representation of space have been described in the rat brain. Research with homing pigeons has discovered hippocampal cells, …
Selective Suppression Of The Α Isoform Of P38 Mapk Rescues Late-Stage Tau Pathology, Nicole Maphis, Shanya Jiang, Guixiang Xu, Olga N. Kokiko-Cochran, Saktimayee M. Roy, Linda J. Van Eldik, D. Martin Watterson, Bruce T. Lamb, Kiran Bhaskar
Selective Suppression Of The Α Isoform Of P38 Mapk Rescues Late-Stage Tau Pathology, Nicole Maphis, Shanya Jiang, Guixiang Xu, Olga N. Kokiko-Cochran, Saktimayee M. Roy, Linda J. Van Eldik, D. Martin Watterson, Bruce T. Lamb, Kiran Bhaskar
Sanders-Brown Center on Aging Faculty Publications
Background: Hyperphosphorylation and aggregation of tau protein are the pathological hallmarks of Alzheimer’s disease and related tauopathies. We previously demonstrated that the microglial activation induces tau hyperphosphorylation and cognitive impairment via activation of p38 mitogen-activated protein kinase (p38 MAPK) in the hTau mouse model of tauopathy that was deficient for microglial fractalkine receptor CX3CR1.
Method: We report an isoform-selective, brain-permeable, and orally bioavailable small molecule inhibitor of p38α MAPK (MW181) and its effects on tau phosphorylation in vitro and in hTau mice.
Results: First, pretreatment of mouse primary cortical neurons with MW181 completely blocked inflammation-induced p38α MAPK activation and AT8 …
An Analysis Of The Use Of Animal Models In Predicting Human Toxicology And Drug Safety, Jarrod Bailey, Michelle Thew, Michael Balls
An Analysis Of The Use Of Animal Models In Predicting Human Toxicology And Drug Safety, Jarrod Bailey, Michelle Thew, Michael Balls
Jarrod Bailey, PhD
Animal use continues to be central to preclinical drug development, in spite of a lack of its demonstrable validity. The current nadir of new drug approvals and the drying-up of pipelines may be a direct consequence of this. To estimate the evidential weight given by animal data to the probability that a new drug may be toxic to humans, we have calculated Likelihood Ratios (LRs) for an extensive data set of 2,366 drugs, for which both animal and human data are available, including tissue-level effects and MedDRA Level 1–4 biomedical observations. This was done for three preclinical species (rat, mouse …
Reduced Efficacy Of Anti-AΒ Immunotherapy In A Mouse Model Of Amyloid Deposition And Vascular Cognitive Impairment Comorbidity, Erica M. Weekman, Tiffany L. Sudduth, Carly N. Caverly, Timothy J. Kopper, Oliver W. Phillips, David K. Powell, Donna M. Wilcock
Reduced Efficacy Of Anti-AΒ Immunotherapy In A Mouse Model Of Amyloid Deposition And Vascular Cognitive Impairment Comorbidity, Erica M. Weekman, Tiffany L. Sudduth, Carly N. Caverly, Timothy J. Kopper, Oliver W. Phillips, David K. Powell, Donna M. Wilcock
Sanders-Brown Center on Aging Faculty Publications
Vascular cognitive impairment and dementia (VCID) is the second most common form of dementia behind Alzheimer's disease (AD). It is estimated that 40% of AD patients also have some form of VCID. One promising therapeutic for AD is anti-Aβ immunotherapy, which uses antibodies against Aβ to clear it from the brain. While successful in clearing Aβ and improving cognition in mice, anti-Aβ immunotherapy failed to reach primary cognitive outcomes in several different clinical trials. We hypothesized that one potential reason the anti-Aβ immunotherapy clinical trials were unsuccessful was due to this high percentage of VCID …
Wild Justice Redux: What We Know About Social Justice In Animals And Why It Matters, Jessica Pierce, Marc Bekoff
Wild Justice Redux: What We Know About Social Justice In Animals And Why It Matters, Jessica Pierce, Marc Bekoff
Marc Bekoff, PhD
Social justice in animals is beginning to attract interest in a broad range of academic disciplines. Justice is an important area of study because it may help explain social dynamics among individuals living in tightly- knit groups, as well as social interactions among individuals who only occasionally meet. In this paper, we provide an overview of what is currently known about social justice in animals and offer an agenda for further research. We provide working definitions of key terms, outline some central research questions, and explore some of the challenges of studying social justice in animals, as well as the …
The Ethics Of Wildlife Control In Humanized Landscapes, John Hadidian, Camilla H. Fox, William S. Lynn
The Ethics Of Wildlife Control In Humanized Landscapes, John Hadidian, Camilla H. Fox, William S. Lynn
William S. Lynn, PhD
The 21st century is witness to an unprecedented and rapid growth of human settlements, from urban centers to wilderness vacation resorts. Concurrent with this has been the growing tolerance and acceptance of many wild animals and humans for one another. This has created an expanding ‘zone’ of human-animal contacts, some number of which invariably result in conflicts. While the vast majority of our interactions with wild animals are undoubtedly benign, it is the conflict between wildlife and people that draws particularly close attention from the public. Animals viewed as vertebrate “pests” range from the small to the large, the timid …
The Tnfα-Transgenic Rat: Hippocampal Synaptic Integrity, Cognition, Function, And Post-Ischemic Cell Loss, L. Creed Pettigrew, Richard J. Kryscio, Christopher M. Norris
The Tnfα-Transgenic Rat: Hippocampal Synaptic Integrity, Cognition, Function, And Post-Ischemic Cell Loss, L. Creed Pettigrew, Richard J. Kryscio, Christopher M. Norris
Sanders-Brown Center on Aging Faculty Publications
The cytokine, tumor necrosis factor α (TNFα), is a key regulator of neuroinflammation linked to numerous neurodegenerative conditions and diseases. The present study used transgenic rats that overexpress a murine TNFα gene, under the control of its own promoter, to investigate the impact of chronically elevated TNFα on hippocampal synaptic function. Neuronal viability and cognitive recovery in TNFα Tg rats were also determined following an ischemic insult arising from reversible middle cerebral artery occlusion (MCAO). Basal CA3-CA1 synaptic strength, recorded in acute brain slices, was not significantly different between eight-week-old TNFα Tg rats and non-Tg rats. In contrast, slices from …
A One Health Message About Bats Increases Intentions To Follow Public Health Guidance On Bat Rabies, Hang Lu, Katherine A. Mccomas, Danielle E. Buttke, Sungjong Roh, Margaret A. Wild
A One Health Message About Bats Increases Intentions To Follow Public Health Guidance On Bat Rabies, Hang Lu, Katherine A. Mccomas, Danielle E. Buttke, Sungjong Roh, Margaret A. Wild
Research Collection Lee Kong Chian School Of Business
Since 1960, bat rabies variants have become the greatest source of human rabies deaths in the United States. Improving rabies awareness and preventing human exposure to rabid bats remains a national public health priority today. Concurrently, conservation of bats and the ecosystem benefits they provide is of increasing importance due to declining populations of many bat species. This study used a visitor-intercept experiment (N = 521) in two U.S. national parks where human and bat interactions occur on an occasional basis to examine the relative persuasiveness of four messages differing in the provision of benefit and uncertainty information on intentions …
Transient Pupil Dilation After Subsaccadic Microstimulation Of Primate Frontal Eye Fields., Sebastian J Lehmann, Brian D Corneil
Transient Pupil Dilation After Subsaccadic Microstimulation Of Primate Frontal Eye Fields., Sebastian J Lehmann, Brian D Corneil
Brain and Mind Institute Researchers' Publications
UNLABELLED: Pupillometry provides a simple and noninvasive index for a variety of cognitive processes, including perception, attention, task consolidation, learning, and memory. The neural substrates by which such cognitive processes influence pupil diameter remain somewhat unclear, although cortical inputs to the locus coeruleus mediating arousal are likely involved. Changes in pupil diameter also accompany covert orienting; hence the oculomotor system may provide an alternative substrate for cognitive influences on pupil diameter. Here, we show that low-level electrical microstimulation of the primate frontal eye fields (FEFs), a cortical component of the oculomotor system strongly connected to the intermediate layers of the …