Cliff Summers

Cliff Summers

Professor

BIOLOGY

Churchill-Haines Labs 168F

Phone: (605) 677-6177

Email: Cliff.Summers@usd.edu

Website: http://www.usdbiology.com/cliff/

Research Interests:

Our laboratory focuses on the impact of social and environmental stressors on molecular, neural and endocrine responses to influence adaptive behavior and activities like learning, coping, developing social rank relationships, biological rhythms, reproduction, and social interaction. Of special interest are how and why individuals differ, and how responses are characterized temporally. The investigations include the connection between molecular, neural and endocrine responses and variability in the magnitude and way in which individuals respond to and cope with stress behaviorally. We have recently developed a new model that includes aggression, learned escape and conditioned submission. We are interested in elucidating the mechanisms by which experience modulates the responsiveness of neural and hormonal stress responses. We think it is important to relate molecular genetics, physiology and anatomy to behavior, ecology and evolution.


Education:

  • Ph D, Endocrinology, University of Colorado, 1987
  • MA, Reproductive Biology, University of Colorado, 1982
  • BS, Wildlife Biology, Colorado State University, 1978

Licensures and Certifications:

  • Bridges: Building a Supportive Community (USD), University of South Dakota and LawRoom

Grants:

  • Amygdalar Orexin Modulation of Affective Disorders, National Institutes of Health (proposal number 1 R15 MH104485-01A1). Grant Role: Principal. (2015 - 2018)
  • Amygdalar Endocannabinoid Modulation of Anxiety, Center for Brain and Behavioral Research. Grant Role: Principal. (2014 - 2016)
  • DISSERTATION RESEARCH: A New Model of Fear Conditioning, National Science Foundation. Grant Role: Principal. (2009 - 2010)
  • Stress - Is it More than a Disease, National Institutes of Health. Grant Role: Principal. (2000 - 2001)
  • Stress - Is it More than a Disease? A Comparative Look at Stress and Adaptation, National Science Foundation. Grant Role: Principal. (2000 - 2001)

Publications:

Citations listed below are presented in a standardized, modified format for display purposes only. They do not necessarily reflect the preferred style and conventions of the faculty member or discipline.

  • Summers, Tangi R., Summers, Torrie L., Carpenter, Russ E., Smith, Justin P., Young, Samuel L., Meyerink, Brandon H., Orr, T. Z., Arendt, David H., and Summers, Cliff H.. Learning and CRF-induced indecision during escape and submission in rainbow trout during socially aggressive interactions in the Stress-Alternatives Model, 1-13. Vol. 11, Iss. 515. Lausanne: Frontiers in Neuroscience, 2017. (DOI: 10.3389/fnins.2017.00515)
  • Robertson, James M., Achua, Justin K., Smith, Justin P., Prince, Melissa A., Staton, Clarissa D., Ronan, Patrick, Summers, Tangi R., and Summers, Cliff H.. Anxious behavior induces elevated hippocampal Cb2 receptor gene expression, 273-284. Vol. 352. Neuroscience, 2017. (DOI: 10.1016/j.neuroscience.2017.03.061)
  • Pearson, Brandon L., Crawley, Jacqueline N., Eilam, David, Pentkowski, Nathan S., and Summers, Cliff H.. Curiosity as an approach to ethoexperimental analysis: Behavioral neuroscience as seen by students and colleagues of Bob Blanchard, 415-422. Vol. 76, Iss. 2017. Neuroscience and Biobehavioral Reviews, 2017. (DOI: http://dx.doi.org/10.1016/j.neubiorev.2016.03.012)
  • Keifer, Joyce, and Summers, Cliff H.. Putting the "Biology" Back into "Neurobiology": The Strength of Diversity in Animal Model Systems for Neuroscience Research, 1-9. Vol. 10, Iss. 69. Frontiers in Systems Neuroscience, 2016.
  • Smith, Justin P., Prince, Melissa A., Achua, Justin K., Robertson, James M., Anderson, Raymond T., Ronan, Patrick, and Summers, Cliff H.. Intensity of Anxiety is modified via complex integrative stress circuitries, 351-361. Vol. 63. Psychoneuroendocrinology, 2016.
  • Waters, R P., Rivalan, Marion, Bangasser, Debra A., Deussing, Jan, Ising, Marcus, Wood, Susan K., and Summers, Cliff H.. Evidence for the role of corticotropin-releasing-factor in major depressive disorder, 63-78. Vol. 58. Neuroscience and Biobehavioral Reviews, 2015.
  • Robertson, James M., Prince, Melissa A., Achua, Justin K., Carpenter, Russ E., Arendt, David H., Smith, Justin P., Summers, Torrie L., Summers, Tangi R., and Summers, Cliff H.. Nuance and behavioral cogency: How the Visible Burrow System inspired the Stress-Alternatives Model and conceptualization of the continuum of anxiety, 86-97. Vol. 146. Physiology and Behavior, 2015.
  • Smith, Justin P., Achua, Justin K., Summers, Tangi R., Ronan, Patrick, and Summers, Cliff H.. Neuropeptide S and BDNF gene expression in the amygdala are influenced by decision making under stress. In Frontiers in Behavioral Neuroscience, Special edition: Decision-making under stress: the importance of cortico-limbic circuits, 1-13. Vol. 8, Iss. Article 121. Frontiers in Behavioral Neuroscience, 2014. (DOI: 10.3389/fnbeh.2014.00121)
  • Arendt, David H., Hassell, James, Li, Hao, Achua, Justin K., Guarnieri, Douglas J., DiLeone, Ralph J., Ronan, Patrick, and Summers, Cliff. Anxiolytic function of the orexin 2/hypocretin A receptor in the basolateral amygdala, 17—26. Vol. 40. Psychoneuroendocrinology, 2014. (DOI: http://dx.doi.org/10.1016/j.psyneuen.2013.10.010)
  • Ricci, Lesley, Summers, Cliff, Larson, Earl T., O'Malley, Donald, and Melloni, Richard H.. Development of aggressive phenotypes: Interactions of age, experience, and social status, 245-252 . Vol. 86. Animal Behaviour, 2013. (DOI: http://dx.doi.org/10.1016/j.anbehav.2013.04.011)
  • Blanchard, D C., Summers, Cliff, and Blanchard, Robert J.. The role of behavior in translational models for psychopathology: Functionality and dysfunctional behaviors, 1567-1577. Vol. 37. Neuroscience and Biobehavioral Reviews , 2013. (DOI: http://dx.doi.org/10.1016/j.neubiorev.2013.06.008)
  • Arendt, David H., Ronan, Patrick, Oliver, Kevin D., Callahan, Leah B., Summers, Tangi R., and Summers, Cliff. Depressive behavior and activation of the orexin/hypocretin system, 86-94. Vol. 127. Behavioral Neuroscience, 2013. (DOI: 10.1037/a0031442)
  • Arendt, David H., Smith, Justin P., Bastida, Christel C., Prasad, Maneeshi, Oliver, Kevin D., Eyster, Kathleen, Summers, Tangi R., Delville, Yvon, and Summers, Cliff. Contrasting hippocampal and amygdalar expression of genes related to neural plasticity during escape from social aggression, 670-679 . Vol. 107. Physiology and Behavior, 2012.
  • Sørensen, Christina, Nilsson, Göran E., Summers, Cliff, and Øverli, Øyvind. Social stress reduces forebrain cell proliferation in rainbow trout (Oncorhynchus mykiss), 311-318 . Vol. 227. Behavioural Brain Research, 2012.
  • Ronan, P J., and Summers, Cliff. Molecular signaling and translational significance of the corticotropin releasing factor system. In Progress in Molecular Biology and Translational Science, edited by S Rahman, 235 - 292. Vol. 98 The Brain as a Drug Target. Burlington, VT: Academic Press, 2011.
  • Clotfelter, Ethan, McNitt, M M., Carpenter, Russ E., and Summers, Cliff. Modulation of monoamine neurotransmitters in fighting fish Betta splendens exposed to waterborne phytoestrogens, 933-943. Vol. 36, Iss. published online. Fish Physiology and Biochemistry, 2010. (DOI: 10.1007/s10695-009-9370-2)
  • Ling, Travis J., Summers, Cliff, Renner, Kenneth, and Watt, Michael. Opponent recognition and social status differentiate rapid neuroendocrine responses to social challenge, 571-578. Vol. 99. Physiol Behav, 2010.
  • Waters, R P., Renner, Kenneth, Summers, Cliff, Watt, Michael, Forster, Gina, Koch, L G., Britten, S L., and Swallow, John. Selection for intrinsic endurance modifies endocrine stress responsiveness, 53 - 61. Vol. 1357. Brain Research, 2010.
  • Tokarz, R R., and Summers, Cliff. Stress and Reproduction in Reptiles In Hormones and Reproduction of Vertebrates. In Hormones and Reproduction of Vertebrates: Reptiles, edited by DO Norris, KH Lopez, 169 - 213. Vol. 3. San Diego, CA: Elsevier, 2010.
  • Carpenter, Russ E., Sabirzhanov, Boris, Clark, Timothy G., and Summers, Cliff. Oncorhynchus mykiss brain derived neurotrophic factor (BDNF) mRNA, partial coding sequences; bases 1-747, GU108576.1 . GenBank/National Center for Biotechnology Information, U.S. National Library of Medicine , 2009.
  • Carpenter, Russ E., Sabirzhanov, Boris, Clark, Timothy G., and Summers, Cliff. Oncorhynchus mykiss Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) mRNA, partial coding sequences; bases 1-747, GU108575.1 . GenBank/National Center for Biotechnology Information, U.S. National Library of Medicine , 2009.
  • Carpenter, Russ E., Sabirzhanov, Boris, Clark, Timothy G., and Summers, Cliff. Oncorhynchus mykiss ?-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor GluR1 subunit (GluR1) mRNA, partial coding sequences; bases 1-747, GU108574.1 . GenBank/National Center for Biotechnology Information, U.S. National Library of Medicine , 2009.
  • Carpenter, Russ E., Sabirzhanov, Boris, Clark, Timothy G., and Summers, Cliff. Oncorhynchus mykiss ?-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor GluR2b subunit (GluR2b) mRNA, partial coding sequences; bases 1-747, GU108573.1 . GenBank/National Center for Biotechnology Information, U.S. National Library of Medicine , 2009.
  • Ling, T J., Watt, Michael, Forster, Gina, Korzan, W J., Renner, Kenneth, and Summers, Cliff. Social status differentiates rapid neuroendocrine responses to restraint stress, 218-232. Vol. 96. Physiology and Behavior, 2009.
  • Carpenter, R E., Korzan, W J., Bockholt, C, Watt, Michael, Forster, Gina, Renner, Kenneth, and Summers, Cliff. Corticotropin releasing factor influences aggression and monoamines:, 412-425. Vol. 158. Neuroscience, 2009.
  • Carpenter, R E., Korzan, W J., Bockholt, C, Watt, M J., Forster, G L., Renner, K J., and Summers, Cliff. Corticotropin releasing factor influences aggression and monoamines: Modulation of attacks and retreats, 412-425. Vol. 158. Neuroscience , 2009.
  • Lukkes, J L., Summers, Cliff, Scholl, J L., Renner, K J., and Forster, G L.. Early life social isolation alters corticotropin-releasing factor responses in adult rats, 845-855. Vol. 158. Neuroscience, 2009.
  • Lowry, C A., Hale, M W., Plant, A, Windle, R J., Shanks, N, Woods, S A., Renner, Kenneth, Lightman, S L., and Summers, Cliff. Fluoxetine inhibits corticotropin-releasing factor (CRF)-induced behavioral activation: evidence for convergent actions on an emotional motor system, 225-239. Vol. 12. Stress, 2009.
  • Lowry, C A., Hale, M W., Plant, A, Windle, R J., Shanks, N, Wood, S A., Ingram, C D., Renner, K J., Lightman, S, and Summers, Cliff. Fluoxetine inhibits corticotropin-releasing factor (CRF)-induced behavioural responses in rats, 225-239. Vol. 12. Stress, 2009.
  • Carpenter, R E., and Summers, Cliff. Learning strategies during fear conditioning, 415-423. Vol. 91. Neurobiol Learn Mem, 2009.
  • Shaw, J C., Korzan, W J., Carpenter, R E., Kuris, A M., Lafferty, K D., Summers, Cliff, and Øverli, Ø. Parasite manipulation of brain monoamines in California killifish (Fundulus parvipinnis) by the trematode Euhaplorchis californiensis, 1137-1146. Vol. 276. Proc R Soc B, 2009.
  • Lorenzi, V, Carpenter, R E., Summers, Cliff, Earley, R L., and Grober, M S.. Serotonin, social status and sex change in the bluebanded goby Lythrypnus dalli, 476-483. Vol. 97. Physiol Behav, 2009.
  • Ling, T J., Forster, G L., Watt, M J., Korzan, W J., Renner, K J., and Summers, Cliff. Social status differentiates rapid neuroendocrine responses to restraint stress, 218-232. Vol. 96. Physiol Behav, 2009.
  • Forster, Gina, Pringle, Ronald B., Mouw, Nicholas J., Vuong, Sean M., Watt, Michael, Burke, Andrew R., Lowry, Christopher A., Summers, Cliff, and Renner, Kenneth. Corticotrophin-releasing factor in the dorsal raphe increases medial prefrontal cortical serotonin via type 2 receptors and median raphe activity, 299-310. Vol. 28. European Journal of Neuroscience, 2008.
  • Lukkes, Jodi L., Forster, Gina L., Renner, Kenneth J., and Summers, Cliff. Corticotropin-releasing factor 1 and 2 receptors in the dorsal raphe differentially affect serotonin release in the nucleus accumbens, 185-193. Vol. 578..
  • Waters, R. P., Renner, Kenneth, Pringle, R. B., Summers, Cliff, Britton, S. L., Koch, L. G., and Swallow, John. Selection for aerobic capacity affects corticosterone, monoamines and wheel-running activity, 1044-1054. Vol. 93. Physiology & Behavior, 2008.
  • Ronan, Patrick, Gaikowski, Mark P., Hamilton, Stephan J., Buhl, Kevin J., and Summers, Cliff. Ammonia causes decreased brain monoamines in fathead minnows (Pimephales promelas), 184-191. Vol. 1147. Brain Research, 2007.
  • Korzan, Wayne J., and Summers, Cliff. Behavioral diversity and neurochemical plasticity: Selection of stress coping strategies that define social status, 257-266. Vol. 70. Brain, Behavior and Evolution, 2007.
  • Carpenter, Russ E., Watt, Michael, Forster, Gina, Øverli, Øyvind, Bockholt, Craig, Renner, Kenneth, and Summers, Cliff. Corticotropin releasing factor induces anxiogenic locomotion in trout and alters serotonergic and dopaminergic activity, 600-611. Vol. 52. Hormones and Behavior, 2007.
  • Øverli, Øyvind, Sørensen, Christina, Pulman, Kim G., Pottinger, Thomas G., Korzan, Wayne J., Summers, Cliff, and Nilsson, Göran. Evolution of stress coping styles: Relationships between physiological, behavioural and cognitive traits in non-mammalian vertebrates, 396-412. Vol. 31. Neuroscience and Biobehavioral Reviews , 2007.
  • Korzan, Wayne J., Höglund, Erik, Watt, Michael, Forster, Gina, Øverli, Øyvind, Lukkes, Jodi L., and Summers, Cliff. Memory of opponents is more potent than visual sign stimuli after social hierarchy has been established, 31-42. Vol. 183. Behavioural Brain Research, 2007.
  • Anderson, William, and Summers, Cliff. Neuroendocrine mechanisms, stress coping strategies, and social dominance: Comparative lessons about leadership potential, 102-130. Vol. 614. Annals American Academy of Political and Social Sciences , 2007.
  • Clotfelter, Ethan, O"Hare, E P., McNitt, M M., Carpenter, Russ E., and Summers, Cliff. Pharmacological manipulation of the serotonergic system affects aggressive behavior and brain monoamine levels in the fighting fish Betta splendens, 222-231. Vol. 87. Pharmacology, Biochemistry and Behavior , 2007.
  • Watt, Michael, Forster, Gina, Korzan, Wayne J., Renner, Kenneth, and Summers, Cliff. Rapid neuroendocrine responses evoked at the onset of social challenge, 567-575. Vol. 90. Physiology and Behavior, 2007.
  • Sørensen, Christina, Øverli, Øyvind, Summers, Cliff, and Nilsson, Göran. Social regulation of neurogenesis in teleosts, 239-246. Vol. 70. Brain,Behavior and Evolution, 2007.
  • Forster, Gina, Feng, Na, Watt, Michael, Korzan, Wayne J., Mouw, Nicholas J., Summers, Cliff, and Renner, Kenneth. Corticotropin-releasing factor in the dorsal raphe elicits temporally distinct serotonergic responses in the limbic system, 1047-1055. Vol. 141. Neuroscience , 2006.
  • Korzan, Wayne J., Øverli, Øyvind, and Summers, Cliff. Future social rank: Forecasting status in the green anole (Anolis carolinensis), 48-57. Vol. 9. Acta Ethologica, 2006.
  • Summers, Cliff, and Winberg, Svante. Interactions between the neural regulation of stress and aggression, 4581 - 4589. Vol. 209. Journal of Experimental Biology, 2006.
  • Jones, Richard E., Lopez, Kristin H., Austin, Harriet B., Orlicky, David J., and Summers, Cliff. Uterine motility in the reptile Anolis carolinensis: Interactive effects of tension, prostaglandins, calcium and vasotocin, 1030 - 1040. Vol. 305A. Journal of Experimental Zoology, 2006.
  • Waters, R. P., Emerson, A. J., Watt, Michael, Forster, Gina, Swallow, John, and Summers, Cliff. Stress induces rapid changes in central catecholaminergic activity in Anolis carolinensis: Restraint and forced physical activity., 210-218. Vol. 67. Brain Research Bulletin, 2005.
  • Summers, Cliff, Austin, Harriet B., and Jones, Richard E.. Induction of oviposition in cycling Anolis carolinensis requires a ??-adrenoreceptor blocker and a high dosage of AVT., 389-392. Vol. 57. General and Comparative Endocrinology, 1985.
  • Jones, Richard E., and Summers, Cliff. Compensatory follicular hypertrophy during the ovarian cycle of the house gecko, Hemidactylus frenatus., 59-65. Vol. 209. Anatomical Record, 1984.
  • Summers, Cliff. Compensatory testicular hypertrophy in the lizard Anolis carolinensis, 101-107. Vol. 231. Journal of Experimental Zoology, 1984.
  • Jones, Richard E., Austin, Harriet B., and Summers, Cliff. Spontaneous rhythmic contractions of the ovarian follicular wall of a lizard (Anolis carolinensis), 252-257. Vol. 56. General and Comparative Endocrinology, 1984.
  • Jones, Richard E., Summers, Cliff, and Lopez, Kristin H.. Adrenergic inhibition of uterine contractions and oviposition in the lizard Anolis carolinensis, 77-83. Vol. 51. General and Comparative Endocrinology, 1983.
  • Jones, Richard E., Summers, Cliff, Austin, Harriet B., Smith, Hobart M., and Gleeson, Todd T.. Ovarian, oviductal, and adrenal vascular connections in female lizards (genus Anolis), 247-255. Vol. 206. Anatomical Record, 1983.
  • Jones, Richard E., Guillette, Louis J., Summers, Cliff, Tokarz, Richard R., and Crews, David. The relationship among ovarian condition, steroid horomones, and estrous behavior in Anolis carolinensis, 145-154. Vol. 227. Journal of Experimental Zoology, 1983.

Awards and Honors:

  • 100 peer-reviewed publications, 2013
  • Fellow, International Behavioral Neuroscience Society, 2013
  • Belbas-Larson Award for Excellence in Teaching, University of South Dakota, 2012
  • Belbas-Larson Award for Excellence in Teaching, University of South Dakota, 1995
  • Full Membership, Sigma Xi - The Scientific Research Society, 1982
  • Honors in Natural Resources - Wildlife Biology, Xi Sigma Pi - Omicron Chapter Colorado State University, 1977

Presentations:

  • Prince, Melissa A., Achua, Justin K., Smith, Justin P., Robertson, James M., Ronan, Patrick, Summers, Tangi R., Summers, Cliff H.. Decision-making during social interaction in mice is not driven by aggression, but is related to ventral dentate gyrus expression of orexin receptors. Presented at the Society for Neuroscience 45th annual Meeting, Chicago, IL. (October 2015)
  • Robertson, James M., Achua, Justin K., Smith, Justin P., Prince, Melissa A., Summers, Tangi R., Ronan, Patrick, Summers, Cliff H.. Endocannabinoid receptor CB2 gene expression in hippocampus reflects modulation of anxious behavior. Presented at the Society for Neuroscience 45th annual Meeting, Chicago, IL. (October 2015)
  • Summers, Tangi R., Achua, Justin K., Smith, Justin P., Prince, Melissa A., Robertson, James M., Summers, Cliff H.. Exercise modifies orexin receptor, BDNF, and TrKB receptor gene expression during social stress: Ventral versus dorsal hippocampal regions. Presented at the Society for Neuroscience 45th annual Meeting, Chicago, IL. (October 2015)
  • Prince, Melissa A., Robertson, James M., Smith, Justin P., Summers, Tangi R., Summers, Cliff H.. Behavioral Nuance in a Novel Animal Model (SAM) Reveals a Gradient of Anxiety. Presented at the 2015 CBBRe Symposium, Vermillion, SD. (August 19, 2015)
  • Summers, Cliff H., Pearson, Brandon L.. Symposium: with 7 Internationally renowned speakers. Presented at the Behavioral Neuroscience through the eyes of those Bob Blanchard influenced, Victoria, BC. (June 7, 2015)
  • Ten Eyck, Gary R., Regen, Elizabeth M., Korzan, Wayne K., Calibuso-Salazar, M J., Vonnahme, J D., Summers, Cliff H.. Central monoaminergic distinction between male behavioral modes in a paternal frog. Presented at the Society for Neuroscience 44th annual Meeting, Washington, DC. (November 17, 2014)
  • Robertson, James M., Smith, Justin P., Achua, Justin K., Prince, Melissa A., Summers, Tangi R., Ronan, Patrick J., Summers, Cliff H.. Decision-making across a gradient of anxiety differentially influences central amygdala NPS and BDNF gene expression. Presented at the Society for Neuroscience 44th annual Meeting, Washington, DC. (November 17, 2014)
  • Prince, Melissa A., Smith, Justin P., Robertson, James M., Achua, Justin K., Anderson, Raymond T., Donohoe, Connor, Summers, Tangi R., Ronan, Patrick J., Summers, Cliff H.. Winning repeated aggression stimulates protracted AVP and NPS gene expression as well as anxious behavior. Presented at the Society for Neuroscience 44th annual Meeting, Washington, DC. (November 17, 2014)
  • Achua, Justin K., Callahan, L B., Brudvig, John J., Summers, Cliff H., Ronan, Patrick J.. Cross-talk between orexin/hypocretin and corticotropin releasing factor systems: a combined retrograde tracer immunohistochemical study. Presented at the Society for Neuroscience 44th annual Meeting, Washington, DC. (November 15, 2014)
  • Summers, Cliff H.. Orexin and Neuropeptide S in Anxiety and Depression. Presented at the 2014 CBBRe Symposium, Vermillion, SD. (August 21, 2014)
  • Summers, Cliff H., Waters, R P.. Symposium: with 4 Internationally renowned speakers. Presented at the The Role of CRF and CRF Receptor Expression in the Progression and Pathology of Major Depressive Disorder, Las Vegas, NV. (June 12, 2014)
  • Arendt, David H., Hassell, James, Li, Hao, Achua, Justin K., Guarnieri, Douglas J., DiLeone, Ralph J., Ronan, Patrick, Summers, Cliff. An anxiolytic role for the orexin 2/hypocretin A receptor in the basolateral amygdala. Presented at the Society for Neuroscience 43nd annual Meeting, San Diego, CA. (November 13, 2013)
  • Smith, Justin P., Achua, Justin K., Callahan, Leah B., Ronan, Patrick, Summers, Tangi R., Summers, Cliff. Patterns of neural and behavioral change during subsequent novel aggression. Presented at the Society for Neuroscience 43nd annual Meeting, San Diego, CA. (November 13, 2013)
  • Arendt, David H., Oliver, Kevin D., Goetz, Renita A., Callahan, Leah B., Summers, Tangi R., Ronan, Patrick, Summers, Cliff. Mapping orexin/hypocretin signaling in depression. Presented at the Society for Neuroscience 42nd annual Meeting, New Orleans, LA. (October 17, 2012)
  • Smith, Justin P., Ronan, Patrick, Summers, Tangi R., Summers, Cliff. Amygdalar gene expression following stressful social decision making. Presented at the Society for Neuroscience 42nd annual Meeting, New Orleans, LA. (October 16, 2012)
  • Arendt, David H., Kalkman, K L., Callahan, Leah B., Summers, Cliff, Ronan, Patrick. Evidence for cross-talk between corticotropin releasing factor and orexin/hypocretin systems. Presented at the Society for Neuroscience 42nd annual Meeting, New Orleans, LA. (October 16, 2012)
  • Smith, Justin P., Arendt, David H., Bastida, Christel C., Delville, Yvon, Summers, Cliff. Amygdala vs hippocampus: inverse relationships in plasticity during social escape in hamsters. Presented at the Society for Behavioral Neuroendocrinology 16th annual Meeting, Madison WI. (June 17, 2012)
  • Summers, Cliff. Choices in Social Adaptation to Aggression: Neuromodulatory Mechanisms in Decision Making. Presented at the International Behavioral Neuroscience Society 21st annual meeting - Symposium on: Aggression, neuromodulation, and social adaptation: Lessons from multiple animal models , Kailua-Kona, HI. (June 8, 2012)
  • Arendt, David H., Oliver, Kevin D., Summers, Cliff. Local orexinergic activation and the influence on the forced swim test. Presented at the International Behavioral Neuroscience Society 21st annual meeting, Kailua-Kona, HI. (June 6, 2012)
  • Summers, Tangi R., Rasmussen, Torrie L., Carpenter, Russ E., Smith, Justin P., Arendt, David H., Summers, Cliff. Plasticity resulting from aggression-induced social choice in Rainbow trout. Presented at the Society for Neuroscience 41st annual Meeting, Washington, DC. (November 16, 2011)
  • Smith, Justin P., Arendt, David H., Bastida, Christel C., Summers, Tangi R., Delville, Yvon, Summers, Cliff. Amygdala vs hippocampus: Inverse relationships in plasticity during social escape in hamsters. Presented at the Society for Neuroscience 41st annual Meeting, Washington, DC. (November 13, 2011)
  • Arendt, David H., Smith, Justin P., Rasmussen, Torrie L., Callahan, Leah B., Tschetter, Kristi E., Oliver, Kevin, Summers, Tangi R., Ronan, Patrick, Summers, Cliff. Forced swim test affects orexinergic activity in the lateral hypothalamus. Presented at the Society for Neuroscience 41st annual Meeting, Washington, DC. (November 13, 2011)
  • Smith, Justin P., Arendt, David H., Bastida, Christel C., Rasmussen, Torrie L., Summers, Tangi R., Delville, Yvon, Summers, Cliff. Anxiety is alleviated by escape from social aggression in hamsters. Presented at the International Behavioral Neuroscience Society 20th annual Meeting, Steamboat Springs, CO. (May 27, 2011)
  • Arendt, David H., Smith, Justin P., Bastida, Christel C., Prasad, Maneeshi, Rasmussen, Torrie L., Summers, Tangi R., Delville, Yvon, Summers, Cliff. Hippocampal gene expression during escape from social aggression in hamsters. Presented at the International Behavioral Neuroscience Society 20th annual Meeting, Steamboat Springs, CO. (May 27, 2011)
  • Rasmussen, Torrie L., Summers, Tangi R., Carpenter, Russ E., Smith, Justin P., Arendt, David H., Summers, Cliff. Social decision making drives behavioral and neural plasticity during learned escape. Presented at the International Behavioral Neuroscience Society 20th annual Meeting, Steamboat Springs, CO. (May 27, 2011)
  • Arendt, David H., Smith, Justin P., Bastida, Christel C., Prasad, Maneeshi, Rasmussen, Torrie L., Oliver, Kevin, Carpenter, Russ E., Eyster, Kathleen, Summers, Tangi R., Delville, Yvon, Summers, Cliff. BDNF and escape from social aggression in hamsters. Presented at the Society for Neuroscience 40th annual Meeting, San Diego, CA. (November 15, 2010)
  • Summers, Cliff, Øverli, Øyvind, Sørensen, Christina, Nilsson, Goran E.. Sex-related differences in aggressive behavior and stress-coping in rainbow trout. Presented at the 9th Internat Cong Biol Fish, Barcelona, Spain. (July 5, 2010)
  • Summers, Cliff. Social Stress, Learning and Choice. Presented at the Social modulation of hormones, brain and behaviour: integrating mechanisms and function, Lisbon, Portugal. (June 5, 2009)
  • Summers, Cliff. Center for Neural Mechanisms of Adaptive Behavior.