Posts classified under: Integrative Center for Learning and Memory

Christopher Colwell, Ph.D.

Biography

Christopher S. Colwell is a Neuroscientist who has served on the UCLA School of Medicine faculty since he joined the Department of Psychiatry and Biobehavioral Sciences in 1997. He became a Professor in 2008. Dr. Colwell earned his B.S. in Neuroscience from Vanderbilt University in 1985. During this time, he started his research in circadian rhythms under the mentorship of Dr. T. Page. Dr. Colwell earned his Ph.D. in Biology at the University of Virginia in 1991. His thesis work explored the neural mechanisms by which light regulates circadian rhythms. Dr. Colwell continued this line of research during a postdoctoral fellowship at the University of Virginia with Dr. G. Block. A second postdoctoral fellowship was carried out on the topics of motor control and excitotoxicity in the laboratory of Dr. M. Levine at UCLA. Dr. Colwell learned how to utilize imaging techniques to measure calcium levels inside neurons while a visiting scientist in the laboratory of Dr. Konnerth at the University of Saarland, Germany. Since Dr. Colwell’s faculty appointment at UCLA, his laboratory’s research has focused on understanding the mechanisms underlying circadian rhythms in mammals. Dysfunction in the timing these daily cycles is a key symptom in a number of neurological and psychiatric disorders. Better understanding the basic biology of this timing system should result in new therapies to improve the quality of life of these patients and the people who care for them.

Melissa Sharpe, Ph.D.

Publications

A selected list of publications:

Maes Etienne J P, Sharpe Melissa J, Usypchuk Alexandra A, Lozzi Megan, Chang Chun Yun, Gardner Matthew P H, Schoenbaum Geoffrey, Iordanova Mihaela D   Causal evidence supporting the proposal that dopamine transients function as temporal difference prediction errors Nature neuroscience, 2020; .
Sharpe Melissa J, Batchelor Hannah M, Mueller Lauren E, Yun Chang Chun, Maes Etienne J P, Niv Yael, Schoenbaum Geoffrey   Dopamine transients do not act as model-free prediction errors during associative learning Nature communications, 2020; 11(1): 106.
Sharpe Melissa J, Stalnaker Thomas, Schuck Nicolas W, Killcross Simon, Schoenbaum Geoffrey, Niv Yael   An Integrated Model of Action Selection: Distinct Modes of Cortical Control of Striatal Decision Making Annual review of psychology, 2019; 70(1): 53-76.
Sharpe Melissa J, Killcross Simon   Modulation of attention and action in the medial prefrontal cortex of rats Psychological review, 2018; 125(5): 822-843.
Sharpe Melissa J   What a relief! A role for dopamine in positive (but not negative) valence Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2018; 43(8): 1-2.
Langdon Angela J, Sharpe Melissa J, Schoenbaum Geoffrey, Niv Yael   Model-based predictions for dopamine Current opinion in neurobiology, 2018; 49(8): 1-7.
Sharpe Melissa J, Schoenbaum Geoffrey   Evaluation of the hypothesis that phasic dopamine constitutes a cached-value signal Neurobiology of learning and memory, 2017; 49(8): 1-7.
Sharpe Melissa J, Batchelor Hannah M, Schoenbaum Geoffrey   Preconditioned cues have no value eLife, 2017; 6(8): 1-7.
Sharpe Melissa J, Marchant Nathan J, Whitaker Leslie R, Richie Christopher T, Zhang Yajun J, Campbell Erin J, Koivula Pyry P, Necarsulmer Julie C, Mejias-Aponte Carlos, Morales Marisela, Pickel James, Smith Jeffrey C, Niv Yael, Shaham Yavin, Harvey Brandon K, Schoenbaum Geoffrey   Lateral Hypothalamic GABAergic Neurons Encode Reward Predictions that Are Relayed to the Ventral Tegmental Area to Regulate Learning Current biology : CB, 2017; 27(14): 2089-2100.e5.
Sharpe Melissa J, Chang Chun Yun, Liu Melissa A, Batchelor Hannah M, Mueller Lauren E, Jones Joshua L, Niv Yael, Schoenbaum Geoffrey   Dopamine transients are sufficient and necessary for acquisition of model-based associations Nature neuroscience, 2017; 20(5): 735-742.
Nasser Helen M, Calu Donna J, Schoenbaum Geoffrey, Sharpe Melissa J   The Dopamine Prediction Error: Contributions to Associative Models of Reward Learning Frontiers in psychology, 2017; 8(5): 244.
Sharpe Melissa J, Schoenbaum Geoffrey   Back to basics: Making predictions in the orbitofrontal-amygdala circuit Neurobiology of learning and memory, 2016; 131(5): 201-6.
Sharpe M J, Clemens K J, Morris M J, Westbrook R F   Daily Exposure to Sucrose Impairs Subsequent Learning About Food Cues: A Role for Alterations in Ghrelin Signaling and Dopamine D2 Receptors Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2016; 41(5): 1357-65.
Sharpe Melissa J, Wikenheiser Andrew M, Niv Yael, Schoenbaum Geoffrey   The State of the Orbitofrontal Cortex Neuron, 2015; 88(6): 1075-1077.
Sharpe Melissa J, Killcross Simon   The prelimbic cortex directs attention toward predictive cues during fear learning Learning & memory (Cold Spring Harbor, N.Y.), 2015; 22(6): 289-93.
Sharpe Melissa, Killcross Simon   The prelimbic cortex uses contextual cues to modulate responding towards predictive stimuli during fear renewal Neurobiology of learning and memory, 2015; 118(6): 20-9.
Sharpe Melissa J, Killcross Simon   The prelimbic cortex contributes to the down-regulation of attention toward redundant cues Cerebral cortex (New York, N.Y. : 1991), 2014; 24(4): 1066-74.
Sharpe Melissa J, Killcross Simon   The prelimbic cortex uses higher-order cues to modulate both the acquisition and expression of conditioned fear Frontiers in systems neuroscience, 2014; 8(6): 235.
Sharpe Melissa J, Fardell Joanna E, Vardy Janette, Johnston Ian N   The chemotherapy agent oxaliplatin impairs the renewal of fear to an extinguished conditioned stimulus in rats Behavioural brain research, 2012; 227(1): 295-9.

David Glanzman, Ph.D.

Publications

A selected list of publications:

Roberts Adam C, Bill Brent R, Glanzman David L   Learning and memory in zebrafish larvae Frontiers in neural circuits, 2013; 7: 126.
Glanzman David L   PKM and the maintenance of memory F1000 biology reports, 2013; 5: 4.
Glanzman David L   David L. Glanzman Current biology : CB, 2012; 22(21): R895-7.
Cai Diancai, Pearce Kaycey, Chen Shanping, Glanzman David L   Reconsolidation of long-term memory in Aplysia Current biology : CB, 2012; 22(19): 1783-8.
Glanzman David L   Behavioral neuroscience: no easy path from genes to cognition Current biology : CB, 2012; 22(9): R302-4.
Glanzman David L   Olfactory habituation: fresh insights from flies Proceedings of the National Academy of Sciences of the United States of America, 2011; 108(36): 14711-2.
Cai Diancai, Pearce Kaycey, Chen Shanping, Glanzman David L   Protein kinase M maintains long-term sensitization and long-term facilitation in aplysia The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011; 31(17): 6421-31.
Roberts Adam C, Reichl Jun, Song Monica Y, Dearinger Amanda D, Moridzadeh Naseem, Lu Elaine D, Pearce Kaycey, Esdin Joseph, Glanzman David L   Habituation of the C-start response in larval zebrafish exhibits several distinct phases and sensitivity to NMDA receptor blockade PloS one, 2011; 6(12): e29132.
Issa Fadi A, O’Brien Georgeann, Kettunen Petronella, Sagasti Alvaro, Glanzman David L, Papazian Diane M   Neural circuit activity in freely behaving zebrafish (Danio rerio) The Journal of experimental biology, 2011; 214(Pt 6): 1028-38.
Glanzman David L   Common mechanisms of synaptic plasticity in vertebrates and invertebrates Current biology : CB, 2010; 20(1): R31-6.
Glanzman David L   Ion pumps get more glamorous Nature neuroscience, 2010; 13(1): 4-5.
Esdin Joseph, Pearce Kaycey, Glanzman David L   Long-term habituation of the gill-withdrawal reflex in aplysia requires gene transcription, calcineurin and L-type voltage-gated calcium channels Frontiers in behavioral neuroscience, 2010; 4(1): 181.
Glanzman David L   Habituation in Aplysia: the Cheshire cat of neurobiology Neurobiology of learning and memory, 2009; 92(2): 147-54.
Villareal Greg, Li Quan, Cai Diancai, Fink Ann E, Lim Travis, Bougie Joanna K, Sossin Wayne S, Glanzman David L   Role of protein kinase C in the induction and maintenance of serotonin-dependent enhancement of the glutamate response in isolated siphon motor neurons of Aplysia californica The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009; 29(16): 5100-7.
Fulton Daniel, Condro Michael C, Pearce Kaycey, Glanzman David L   The potential role of postsynaptic phospholipase C activity in synaptic facilitation and behavioral sensitization in Aplysia Journal of neurophysiology, 2008; 100(1): 108-16.
Glanzman DL   New tricks for an old slug: The critical role of postsynaptic mechanisms in learning and memory in Aplysia, Prog. Brain Res, 2008; 169C: 277-292.
Glanzman David L   New tricks for an old slug: the critical role of postsynaptic mechanisms in learning and memory in Aplysia Progress in brain research, 2008; 169(12): 277-92.
Glanzman David L   Octopus conditioning: a multi-armed approach to the LTP–learning question Current biology : CB, 2008; 18(12): R527-30.
Cai Diancai, Chen Shanping, Glanzman David L   Postsynaptic regulation of long-term facilitation in Aplysia Current biology : CB, 2008; 18(12): 920-5.
Villareal Greg, Li Quan, Cai Diancai, Glanzman David L   The role of rapid, local, postsynaptic protein synthesis in learning-related synaptic facilitation in aplysia Current biology : CB, 2007; 17(23): 2073-80.
Jami SA, Wright WG, Glanzman DL.   Differential classical conditioning of the gill-withdrawal reflex in Aplysia recruits both NMDA receptor-dependent enhancement and NMDA receptor-dependent depression of the reflex, J Neurosci, 2007; 27(12): 3064-8.
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Glanzman, D. L   Simple minds: the neurobiology of invertebrate learning and memory, Invertebrate Neurobiology, 2007; 347-380.
Villareal G, Li Q, Cai D, Glanzman DL   The role of rapid, local, postsynaptic protein synthesis in learning-related synaptic facilitation in Aplysia, Curr. Biol, 2007; 17(23): 2073-2080.
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Jami Shekib A, Wright William G, Glanzman David L   Differential classical conditioning of the gill-withdrawal reflex in Aplysia recruits both NMDA receptor-dependent enhancement and NMDA receptor-dependent depression of the reflex The Journal of neuroscience : the official journal of the Society for Neuroscience, 2007; 27(12): 3064-8.
Glanzman DL.   The cellular mechanisms of learning in Aplysia: of blind men and elephants, Biol Bull, 2006; 210(3): 271-9.
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Glanzman David L   The cellular mechanisms of learning in Aplysia: of blind men and elephants The Biological bulletin, 2006; 210(3): 271-9.
Li Q, Roberts AC, Glanzman DL.   Synaptic facilitation and behavioral dishabituation in Aplysia: dependence on release of Ca2+ from postsynaptic intracellular stores, postsynaptic exocytosis, and modulation of postsynaptic AMPA receptor efficacy, J Neurosci, 2005; 25(23): 5623-37.
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Li Quan, Roberts Adam C, Glanzman David L   Synaptic facilitation and behavioral dishabituation in Aplysia: dependence on release of Ca2+ from postsynaptic intracellular stores, postsynaptic exocytosis, and modulation of postsynaptic AMPA receptor efficacy The Journal of neuroscience : the official journal of the Society for Neuroscience, 2005; 25(23): 5623-37.
Roberts AC, Glanzman DL.   Learning in Aplysia: looking at synaptic plasticity from both sides, Trends Neurosci, 2003; 26(12): 662-70.
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Ezzeddine Y, Glanzman DL.   Prolonged habituation of the gill-withdrawal reflex in Aplysia depends on protein synthesis, protein phosphatase activity, and postsynaptic glutamate receptors, J Neurosci, 2003; 23(29): 9585-94.
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Chitwood RA, Li Q, Glanzman DL.   Serotonin facilitates AMPA-type reponses in isolated siphon motor neurons of Aplysia in culture, J Physiol, 2001; 534(Pt 2): 501-10.
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Murphy GG, Glanzman DL.   Cellular analog of differential classical conditioning in Aplysia: disruption by the NMDA receptor antagonist DL-2-amino-5-phosphonovalerate, J Neurosci, 1999; 19(23): 10595-602.
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