Fred J. Helmstetter - Publications

Affiliations: 
University of Wisconsin-Milwaukee, Milwaukee, WI 
Area:
Fear Conditioning
Website:
http://www.uwm.edu/~fjh

107 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any innacuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2019 Ferrara NC, Jarome TJ, Cullen PK, Orsi SA, Kwapis JL, Trask S, Pullins SE, Helmstetter FJ. GluR2 endocytosis-dependent protein degradation in the amygdala mediates memory updating. Scientific Reports. 9: 5180. PMID 30914678 DOI: 10.1038/s41598-019-41526-1  1
2018 Belleau EL, Pedersen WS, Miskovich TA, Helmstetter FJ, Larson CL. Cortico-Limbic Connectivity Changes Following Fear Extinction and Relationships with Trait Anxiety. Social Cognitive and Affective Neuroscience. PMID 30137604 DOI: 10.1093/scan/nsy073  0.72
2017 Cullen PK, Ferrara NC, Pullins SE, Helmstetter FJ. Context memory formation requires activity-dependent protein degradation in the hippocampus. Learning & Memory (Cold Spring Harbor, N.Y.). 24: 589-596. PMID 29038220 DOI: 10.1101/lm.045443.117  1
2017 Schultz DH, Balderston NL, Baskin-Sommers AR, Larson CL, Helmstetter FJ. Corrigendum: Psychopaths Show Enhanced Amygdala Activation during Fear Conditioning. Frontiers in Psychology. 8: 1457. PMID 28845153 DOI: 10.3389/fpsyg.2017.01457  1
2017 Ferrara NC, Cullen PK, Pullins SP, Rotondo EK, Helmstetter FJ. Input from the medial geniculate nucleus modulates amygdala encoding of fear memory discrimination. Learning & Memory (Cold Spring Harbor, N.Y.). 24: 414-421. PMID 28814467 DOI: 10.1101/lm.044131.116  1
2017 Kwapis JL, Jarome TJ, Ferrara NC, Helmstetter FJ. Updating Procedures can Reorganize the Neural Circuit Supporting a Fear Memory. Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology. PMID 28139682 DOI: 10.1038/npp.2017.23  1
2017 Azimipour M, Sheikhzadeh M, Baumgartner R, Cullen PK, Helmstetter FJ, Chang WJ, Pashaie R. Fluorescence laminar optical tomography for brain imaging: system implementation and performance evaluation. Journal of Biomedical Optics. 22: 16003. PMID 28056143 DOI: 10.1117/1.JBO.22.1.016003  1
2016 Pedersen WS, Balderston NL, Miskovich TA, Belleau EL, Helmstetter FJ, Larson CL. The Effects of Stimulus Novelty and Negativity on BOLD Activity in the Amygdala, Hippocampus, and Bed Nucleus of the Stria Terminalis. Social Cognitive and Affective Neuroscience. PMID 28008079 DOI: 10.1093/scan/nsw178  1
2016 Hannula DE, Helmstetter FJ. Hippocampal Interactions with Brain Networks that Influence Learning & Memory. Neurobiology of Learning and Memory. PMID 27565289 DOI: 10.1016/j.nlm.2016.08.018  0.6
2016 Hopkins LS, Helmstetter FJ, Hannula DE. Eye Movements are Captured by a Perceptually Simple Conditioned Stimulus in the Absence of Explicit Contingency Knowledge. Emotion (Washington, D.C.). PMID 27348496 DOI: 10.1037/emo0000206  1
2016 Schultz DH, Balderston NL, Baskin-Sommers AR, Larson CL, Helmstetter FJ. Psychopaths Show Enhanced Amygdala Activation during Fear Conditioning. Frontiers in Psychology. 7: 348. PMID 27014154 DOI: 10.3389/fpsyg.2016.00348  1
2016 Jarome TJ, Ferrara NC, Kwapis JL, Helmstetter FJ. CaMKII regulates proteasome phosphorylation and activity and promotes memory destabilization following retrieval. Neurobiology of Learning and Memory. PMID 26779588 DOI: 10.1016/j.nlm.2016.01.001  1
2015 Hopkins LS, Schultz DH, Hannula DE, Helmstetter FJ. Eye Movements Index Implicit Memory Expression in Fear Conditioning. Plos One. 10: e0141949. PMID 26562298 DOI: 10.1371/journal.pone.0141949  1
2015 Kwapis JL, Jarome TJ, Lee JL, Helmstetter FJ. The retrosplenial cortex is involved in the formation of memory for context and trace fear conditioning. Neurobiology of Learning and Memory. 123: 110-6. PMID 26079095 DOI: 10.1016/j.nlm.2015.06.007  1
2015 Jarome TJ, Ferrara NC, Kwapis JL, Helmstetter FJ. Contextual Information Drives the Reconsolidation-Dependent Updating of Retrieved Fear Memories. Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology. 40: 3044-52. PMID 26062788 DOI: 10.1038/npp.2015.161  1
2015 Balderston NL, Schultz DH, Hopkins L, Helmstetter FJ. Functionally distinct amygdala subregions identified using DTI and high-resolution fMRI. Social Cognitive and Affective Neuroscience. PMID 25969533 DOI: 10.1093/scan/nsv055  1
2015 Jarome TJ, Ferrara NC, Kwapis JL, Helmstetter FJ. Contextual Information Drives the Reconsolidation-Dependent Updating of Retrieved Fear Memories Neuropsychopharmacology. DOI: 10.1038/npp.2015.161  1
2015 Kwapis JL, Jarome TJ, Lee JL, Helmstetter FJ. The retrosplenial cortex is involved in the formation of memory for context and trace fear conditioning Neurobiology of Learning and Memory. 123: 110-116. DOI: 10.1016/j.nlm.2015.06.007  1
2014 Kwapis JL, Jarome TJ, Helmstetter FJ. The role of the medial prefrontal cortex in trace fear extinction. Learning & Memory (Cold Spring Harbor, N.Y.). 22: 39-46. PMID 25512576 DOI: 10.1101/lm.036517.114  1
2014 Jarome TJ, Helmstetter FJ. Protein degradation and protein synthesis in long-term memory formation. Frontiers in Molecular Neuroscience. 7: 61. PMID 25018696 DOI: 10.3389/fnmol.2014.00061  1
2014 Gilmartin MR, Balderston NL, Helmstetter FJ. Prefrontal cortical regulation of fear learning. Trends in Neurosciences. 37: 455-64. PMID 24929864 DOI: 10.1016/j.tins.2014.05.004  1
2014 Balderston NL, Schultz DH, Baillet S, Helmstetter FJ. Rapid amygdala responses during trace fear conditioning without awareness. Plos One. 9: e96803. PMID 24823365 DOI: 10.1371/journal.pone.0096803  1
2014 Jarome TJ, Kwapis JL, Hallengren JJ, Wilson SM, Helmstetter FJ. The ubiquitin-specific protease 14 (USP14) is a critical regulator of long-term memory formation. Learning & Memory (Cold Spring Harbor, N.Y.). 21: 9-13. PMID 24344179 DOI: 10.1101/lm.032771.113  1
2014 Kwapis JL, Helmstetter FJ. Does PKM(zeta) maintain memory? Brain Research Bulletin. 105: 36-45. PMID 24076105 DOI: 10.1016/j.brainresbull.2013.09.005  1
2014 Kwapis JL, Jarome TJ, Lee JL, Gilmartin MR, Helmstetter FJ. Extinguishing trace fear engages the retrosplenial cortex rather than the amygdala. Neurobiology of Learning and Memory. 113: 41-54. PMID 24055593 DOI: 10.1016/j.nlm.2013.09.007  1
2013 Reis DS, Jarome TJ, Helmstetter FJ. Memory formation for trace fear conditioning requires ubiquitin-proteasome mediated protein degradation in the prefrontal cortex. Frontiers in Behavioral Neuroscience. 7: 150. PMID 24167477 DOI: 10.3389/fnbeh.2013.00150  1
2013 Jarome TJ, Kwapis JL, Ruenzel WL, Helmstetter FJ. CaMKII, but not protein kinase A, regulates Rpt6 phosphorylation and proteasome activity during the formation of long-term memories. Frontiers in Behavioral Neuroscience. 7: 115. PMID 24009566 DOI: 10.3389/fnbeh.2013.00115  1
2013 Gilmartin MR, Miyawaki H, Helmstetter FJ, Diba K. Prefrontal activity links nonoverlapping events in memory. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 33: 10910-4. PMID 23804110 DOI: 10.1523/JNEUROSCI.0144-13.2013  1
2013 Balderston NL, Schultz DH, Baillet S, Helmstetter FJ. How to detect amygdala activity with magnetoencephalography using source imaging. Journal of Visualized Experiments : Jove. PMID 23770774 DOI: 10.3791/50212  1
2013 Schultz DH, Balderston NL, Geiger JA, Helmstetter FJ. Dissociation between implicit and explicit responses in postconditioning UCS revaluation after fear conditioning in humans. Behavioral Neuroscience. 127: 357-68. PMID 23731073 DOI: 10.1037/a0032742  1
2013 Gilmartin MR, Kwapis JL, Helmstetter FJ. NR2A- and NR2B-containing NMDA receptors in the prelimbic medial prefrontal cortex differentially mediate trace, delay, and contextual fear conditioning. Learning & Memory (Cold Spring Harbor, N.Y.). 20: 290-4. PMID 23676200 DOI: 10.1101/lm.030510.113  1
2013 Balderston NL, Schultz DH, Helmstetter FJ. The effect of threat on novelty evoked amygdala responses. Plos One. 8: e63220. PMID 23658813 DOI: 10.1371/journal.pone.0063220  1
2013 Gafford GM, Parsons RG, Helmstetter FJ. Memory accuracy predicts hippocampal mTOR pathway activation following retrieval of contextual fear memory. Hippocampus. 23: 842-7. PMID 23640842 DOI: 10.1002/hipo.22140  1
2013 Jarome TJ, Helmstetter FJ. The ubiquitin-proteasome system as a critical regulator of synaptic plasticity and long-term memory formation. Neurobiology of Learning and Memory. 105: 107-16. PMID 23623827 DOI: 10.1016/j.nlm.2013.03.009  1
2012 Schultz DH, Balderston NL, Helmstetter FJ. Resting-state connectivity of the amygdala is altered following Pavlovian fear conditioning. Frontiers in Human Neuroscience. 6: 242. PMID 22936906 DOI: 10.3389/fnhum.2012.00242  1
2012 Jarome TJ, Kwapis JL, Werner CT, Parsons RG, Gafford GM, Helmstetter FJ. The timing of multiple retrieval events can alter GluR1 phosphorylation and the requirement for protein synthesis in fear memory reconsolidation. Learning & Memory (Cold Spring Harbor, N.Y.). 19: 300-6. PMID 22723052 DOI: 10.1101/lm.024901.111  1
2012 Kwapis JL, Jarome TJ, Gilmartin MR, Helmstetter FJ. Intra-amygdala infusion of the protein kinase Mzeta inhibitor ZIP disrupts foreground context fear memory. Neurobiology of Learning and Memory. 98: 148-53. PMID 22659643 DOI: 10.1016/j.nlm.2012.05.003  1
2012 Gilmartin MR, Kwapis JL, Helmstetter FJ. Trace and contextual fear conditioning are impaired following unilateral microinjection of muscimol in the ventral hippocampus or amygdala, but not the medial prefrontal cortex. Neurobiology of Learning and Memory. 97: 452-64. PMID 22469748 DOI: 10.1016/j.nlm.2012.03.009  1
2011 Kwapis JL, Jarome TJ, Schiff JC, Helmstetter FJ. Memory consolidation in both trace and delay fear conditioning is disrupted by intra-amygdala infusion of the protein synthesis inhibitor anisomycin. Learning & Memory (Cold Spring Harbor, N.Y.). 18: 728-32. PMID 22028394 DOI: 10.1101/lm.023945.111  1
2011 Jarome TJ, Werner CT, Kwapis JL, Helmstetter FJ. Activity dependent protein degradation is critical for the formation and stability of fear memory in the amygdala. Plos One. 6: e24349. PMID 21961035 DOI: 10.1371/journal.pone.0024349  1
2011 Gafford GM, Parsons RG, Helmstetter FJ. Consolidation and reconsolidation of contextual fear memory requires mammalian target of rapamycin-dependent translation in the dorsal hippocampus. Neuroscience. 182: 98-104. PMID 21439355 DOI: 10.1016/j.neuroscience.2011.03.023  1
2011 Balderston NL, Schultz DH, Helmstetter FJ. The human amygdala plays a stimulus specific role in the detection of novelty. Neuroimage. 55: 1889-98. PMID 21256226 DOI: 10.1016/j.neuroimage.2011.01.034  1
2010 Schultz DH, Helmstetter FJ. Classical conditioning of autonomic fear responses is independent of contingency awareness. Journal of Experimental Psychology. Animal Behavior Processes. 36: 495-500. PMID 20973611 DOI: 10.1037/a0020263  1
2010 Parsons RG, Gafford GM, Helmstetter FJ. Regulation of extinction-related plasticity by opioid receptors in the ventrolateral periaqueductal gray matter. Frontiers in Behavioral Neuroscience. 4. PMID 20740074 DOI: 10.3389/fnbeh.2010.00044  1
2010 Balderston NL, Helmstetter FJ. Conditioning with masked stimuli affects the timecourse of skin conductance responses. Behavioral Neuroscience. 124: 478-89. PMID 20695647 DOI: 10.1037/a0019927  1
2010 Lonergan ME, Gafford GM, Jarome TJ, Helmstetter FJ. Time-dependent expression of Arc and zif268 after acquisition of fear conditioning. Neural Plasticity. 2010: 139891. PMID 20592749 DOI: 10.1155/2010/139891  1
2010 Gilmartin MR, Helmstetter FJ. Trace and contextual fear conditioning require neural activity and NMDA receptor-dependent transmission in the medial prefrontal cortex. Learning & Memory (Cold Spring Harbor, N.Y.). 17: 289-96. PMID 20504949 DOI: 10.1101/lm.1597410  1
2010 Jarome TJ, Kwapis JL, Nye SH, Helmstetter FJ. Introgression of Brown Norway chromosome 1 onto the fawn hooded hypertensive background rescues long-term fear memory deficits. Behavior Genetics. 40: 85-92. PMID 19757016 DOI: 10.1007/s10519-009-9297-5  1
2009 Lee T, Jarome T, Li SJ, Kim JJ, Helmstetter FJ. Chronic stress selectively reduces hippocampal volume in rats: a longitudinal magnetic resonance imaging study. Neuroreport. 20: 1554-8. PMID 19858767 DOI: 10.1097/WNR.0b013e328332bb09  1
2009 Kwapis JL, Jarome TJ, Lonergan ME, Helmstetter FJ. Protein kinase Mzeta maintains fear memory in the amygdala but not in the hippocampus. Behavioral Neuroscience. 123: 844-50. PMID 19634944 DOI: 10.1037/a0016343  1
2008 Helmstetter FJ, Parsons RG, Gafford GM. Macromolecular synthesis, distributed synaptic plasticity, and fear conditioning. Neurobiology of Learning and Memory. 89: 324-37. PMID 17977027 DOI: 10.1016/j.nlm.2007.09.002  1
2007 Clayton T, Chen JL, Ernst M, Richter L, Cromer BA, Morton CJ, Ng H, Kaczorowski CC, Helmstetter FJ, Furtmüller R, Ecker G, Parker MW, Sieghart W, Cook JM. An updated unified pharmacophore model of the benzodiazepine binding site on gamma-aminobutyric acid(a) receptors: correlation with comparative models. Current Medicinal Chemistry. 14: 2755-75. PMID 18045122 DOI: 10.2174/092986707782360097  1
2007 Cheng DT, Richards J, Helmstetter FJ. Activity in the human amygdala corresponds to early, rather than late period autonomic responses to a signal for shock. Learning & Memory (Cold Spring Harbor, N.Y.). 14: 485-90. PMID 17626906 DOI: 10.1101/lm.632007  1
2006 Cheng DT, Knight DC, Smith CN, Helmstetter FJ. Human amygdala activity during the expression of fear responses. Behavioral Neuroscience. 120: 1187-95. PMID 17201461 DOI: 10.1037/0735-7044.120.5.1187  1
2006 Parsons RG, Gafford GM, Helmstetter FJ. Translational control via the mammalian target of rapamycin pathway is critical for the formation and stability of long-term fear memory in amygdala neurons. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 26: 12977-83. PMID 17167087 DOI: 10.1523/JNEUROSCI.4209-06.2006  1
2006 Parsons RG, Riedner BA, Gafford GM, Helmstetter FJ. The formation of auditory fear memory requires the synthesis of protein and mRNA in the auditory thalamus. Neuroscience. 141: 1163-70. PMID 16766126 DOI: 10.1016/j.neuroscience.2006.04.078  1
2006 Parsons RG, Gafford GM, Baruch DE, Riedner BA, Helmstetter FJ. Long-term stability of fear memory depends on the synthesis of protein but not mRNA in the amygdala. The European Journal of Neuroscience. 23: 1853-9. PMID 16623842 DOI: 10.1111/j.1460-9568.2006.04723.x  1
2005 Gafford GM, Parsons RG, Helmstetter FJ. Effects of post-training hippocampal injections of midazolam on fear conditioning. Learning & Memory (Cold Spring Harbor, N.Y.). 12: 573-8. PMID 16322359 DOI: 10.1101/lm.51305  1
2005 Shin MS, Helmstetter FJ. Antinociception following application of DAMGO to the basolateral amygdala results from a direct interaction of DAMGO with Mu opioid receptors in the amygdala. Brain Research. 1064: 56-65. PMID 16289487 DOI: 10.1016/j.brainres.2005.09.065  1
2004 Knight DC, Smith CN, Cheng DT, Stein EA, Helmstetter FJ. Amygdala and hippocampal activity during acquisition and extinction of human fear conditioning. Cognitive, Affective & Behavioral Neuroscience. 4: 317-25. PMID 15535167  1
2004 Baruch DE, Swain RA, Helmstetter FJ. Effects of exercise on Pavlovian fear conditioning. Behavioral Neuroscience. 118: 1123-7. PMID 15506895 DOI: 10.1037/0735-7044.118.5.1123  1
2004 Knight DC, Cheng DT, Smith CN, Stein EA, Helmstetter FJ. Neural substrates mediating human delay and trace fear conditioning. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 24: 218-28. PMID 14715954 DOI: 10.1523/JNEUROSCI.0433-03.2004  1
2003 Cheng DT, Knight DC, Smith CN, Stein EA, Helmstetter FJ. Functional MRI of human amygdala activity during Pavlovian fear conditioning: stimulus processing versus response expression. Behavioral Neuroscience. 117: 3-10. PMID 12619902 DOI: 10.1037/0735-7044.117.1.3  1
2002 Bailey DJ, Tetzlaff JE, Cook JM, He X, Helmstetter FJ. Effects of hippocampal injections of a novel ligand selective for the alpha 5 beta 2 gamma 2 subunits of the GABA/benzodiazepine receptor on Pavlovian conditioning. Neurobiology of Learning and Memory. 78: 1-10. PMID 12071663 DOI: 10.1006/nlme.2001.4050  1
2001 Kocorowski LH, Helmstetter FJ. Calcitonin gene-related peptide released within the amygdala is involved in Pavlovian auditory fear conditioning. Neurobiology of Learning and Memory. 75: 149-63. PMID 11222057 DOI: 10.1006/nlme.2000.3963  1
2000 Foo H, Helmstetter FJ. Activation of kappa opioid receptors in the rostral ventromedial medulla blocks stress-induced antinociception. Neuroreport. 11: 3349-52. PMID 11059900  1
2000 Tershner SA, Helmstetter FJ. Antinociception produced by mu opioid receptor activation in the amygdala is partly dependent on activation of mu opioid and neurotensin receptors in the ventral periaqueductal gray. Brain Research. 865: 17-26. PMID 10814729 DOI: 10.1016/S0006-8993(00)02179-X  1
2000 Foo H, Helmstetter FJ. Expression of antinociception in response to a signal for shock is blocked after selective downregulation of mu-opioid receptors in the rostral ventromedial medulla. Brain Research. Molecular Brain Research. 76: 282-8. PMID 10762703 DOI: 10.1016/S0169-328X(00)00009-7  1
1999 Knight DC, Smith CN, Stein EA, Helmstetter FJ. Functional MRI of human Pavlovian fear conditioning: patterns of activation as a function of learning. Neuroreport. 10: 3665-70. PMID 10619663  1
1999 Foo H, Helmstetter FJ. Hypoalgesia elicited by a conditioned stimulus is blocked by a mu, but not a delta or a kappa, opioid antagonist injected into the rostral ventromedial medulla. Pain. 83: 427-31. PMID 10568850 DOI: 10.1016/S0304-3959(99)00125-6  1
1999 Bailey DJ, Kim JJ, Sun W, Thompson RF, Helmstetter FJ. Acquisition of fear conditioning in rats requires the synthesis of mRNA in the amygdala. Behavioral Neuroscience. 113: 276-82. PMID 10357452 DOI: 10.1037/0735-7044.113.2.276  1
1998 Bellgowan PS, Helmstetter FJ. The role of mu and kappa opioid receptors within the periaqueductal gray in the expression of conditional hypoalgesia. Brain Research. 791: 83-9. PMID 9593835 DOI: 10.1016/S0006-8993(98)00057-2  1
1998 Helmstetter FJ, Tershner SA, Poore LH, Bellgowan PS. Antinociception following opioid stimulation of the basolateral amygdala is expressed through the periaqueductal gray and rostral ventromedial medulla. Brain Research. 779: 104-18. PMID 9473612 DOI: 10.1016/S0006-8993(97)01104-9  1
1998 Knight DC, Smith CN, Cheng DT, Stein EA, Helmstetter FJ. Functional imaging of human conditional fear Neuroimage. 7: S53.  1
1997 Knight DC, Stein EA, Helmstetter FJ. Pavlovian fear conditioning in humans: An fMRI study Neuroimage. 5: S594.  1
1996 Poore LH, Helmstetter FJ. The effects of central injections of calcitonin gene-related peptide on fear-related behavior. Neurobiology of Learning and Memory. 66: 241-5. PMID 8946417 DOI: 10.1006/nlme.1996.0065  1
1996 Bellgowan PS, Helmstetter FJ. Neural systems for the expression of hypoalgesia during nonassociative fear. Behavioral Neuroscience. 110: 727-36. PMID 8864264 DOI: 10.1037//0735-7044.110.4.727  1
1996 Tershner SA, Helmstetter FJ. Injections of corticotropin-releasing factor into the periaqueductal gray enhance Pavlovian fear conditioning Psychobiology. 24: 49-56.  1
1995 Helmstetter FJ, Bellgowan PS, Poore LH. Microinfusion of mu but not delta or kappa opioid agonists into the basolateral amygdala results in inhibition of the tail flick reflex in pentobarbital-anesthetized rats. The Journal of Pharmacology and Experimental Therapeutics. 275: 381-8. PMID 7562575  1
1994 Helmstetter FJ, Bellgowan PS. Hypoalgesia in response to sensitization during acute noise stress. Behavioral Neuroscience. 108: 177-85. PMID 8192843 DOI: 10.1037//0735-7044.108.1.177  1
1994 Helmstetter FJ, Tershner SA. Lesions of the periaqueductal gray and rostral ventromedial medulla disrupt antinociceptive but not cardiovascular aversive conditional responses. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 14: 7099-108. PMID 7965101  1
1994 Helmstetter FJ, Bellgowan PS. Effects of muscimol applied to the basolateral amygdala on acquisition and expression of contextual fear conditioning in rats. Behavioral Neuroscience. 108: 1005-9. PMID 7826507 DOI: 10.1037/0735-7044.108.5.1005  1
1993 Helmstetter FJ, Bellgowan PS, Tershner SA. Inhibition of the tail flick reflex following microinjection of morphine into the amygdala. Neuroreport. 4: 471-4. PMID 8513121  1
1993 Helmstetter FJ. Stress-induced hypoalgesia and defensive freezing are attenuated by application of diazepam to the amygdala. Pharmacology, Biochemistry, and Behavior. 44: 433-8. PMID 8446677 DOI: 10.1016/0091-3057(93)90487-E  1
1993 Gonzalez-Lima F, Helmstetter FJ, Agudo J. Functional mapping of the rat brain during drinking behavior: a fluorodeoxyglucose study. Physiology & Behavior. 54: 605-12. PMID 8415957 DOI: 10.1016/0031-9384(93)90256-F  1
1993 Helmstetter FJ, Bellgowan PS. Lesions of the amygdala block conditional hypoalgesia on the tail flick test. Brain Research. 612: 253-7. PMID 8330203 DOI: 10.1016/0006-8993(93)91669-J  1
1993 Helmstetter FJ, Fanselow MS. Aversively motivated changes in meal patterns of rats in a closed economy: The effects of shock density Animal Learning & Behavior. 21: 168-175. DOI: 10.3758/BF03213397  1
1992 Helmstetter FJ. Contribution of the amygdala to learning and performance of conditional fear. Physiology & Behavior. 51: 1271-6. PMID 1641430 DOI: 10.1016/0031-9384(92)90320-2  1
1992 Helmstetter FJ. The amygdala is essential for the expression of conditional hypoalgesia. Behavioral Neuroscience. 106: 518-28. PMID 1319714 DOI: 10.1037/0735-7044.106.3.518  1
1991 Young BJ, Helmstetter FJ, Rabchenuk SA, Leaton RN. Effects of systemic and intra-amygdaloid diazepam on long-term habituation of acoustic startle in rats. Pharmacology, Biochemistry, and Behavior. 39: 903-9. PMID 1763110 DOI: 10.1016/0091-3057(91)90051-3  1
1991 Fanselow MS, Kim JJ, Young SL, Calcagnetti DJ, DeCola JP, Helmstetter FJ, Landeira-Fernandez J. Differential effects of selective opioid peptide antagonists on the acquisition of pavlovian fear conditioning. Peptides. 12: 1033-7. PMID 1686930 DOI: 10.1016/0196-9781(91)90056-U  1
1990 Helmstetter FJ, Landeira-Fernandez J. Conditional hypoalgesia is attenuated by naltrexone applied to the periaqueductal gray. Brain Research. 537: 88-92. PMID 1964843 DOI: 10.1016/0006-8993(90)90343-A  1
1990 Helmstetter FJ, Calcagnetti DJ, Fanselow MS. The beta-carboline DMCM produces hypoalgesia after central administration Psychobiology. 18: 293-297. DOI: 10.3758/BF03327246  0.8
1989 Fanselow MS, Calcagnetti DJ, Helmstetter FJ. Role of mu and kappa opioid receptors in conditional fear-induced analgesia: the antagonistic actions of nor-binaltorphimine and the cyclic somatostatin octapeptide, Cys2Tyr3Orn5Pen7-amide. The Journal of Pharmacology and Experimental Therapeutics. 250: 825-30. PMID 2570868  1
1989 Calcagnetti DJ, Fanselow MS, Helmstetter FJ, Bowen WD. [D-Ala2,Leu5,Cys6]enkephalin: short-term agonist effects and long-term antagonism at delta opioid receptors. Peptides. 10: 319-26. PMID 2547203 DOI: 10.1016/0196-9781(89)90037-5  1
1989 Fanselow MS, Calcagnetti DJ, Helmstetter FJ. Modulation of appetitively and aversively motivated behavior by the kappa opioid antagonist MR2266. Behavioral Neuroscience. 103: 663-72. PMID 2544207 DOI: 10.1037/0735-7044.103.3.663  1
1989 Fanselow MS, Calcagnetti DJ, Helmstetter FJ. Delta opioid antagonist, 16-Me cyprenorphine, selectively attenuates conditional fear- and DPDPE-induced analgesia on the formalin test. Pharmacology, Biochemistry, and Behavior. 32: 469-73. PMID 2542994 DOI: 10.1016/0091-3057(89)90181-0  1
1989 Helmstetter FJ, Fanselow MS. Differential second-order aversive conditioning using contextual stimuli Animal Learning & Behavior. 17: 205-212. DOI: 10.3758/BF03207636  1
1988 Fanselow MS, Helmstetter FJ. Conditional analgesia, defensive freezing, and benzodiazepines. Behavioral Neuroscience. 102: 233-43. PMID 3365319 DOI: 10.1037/0735-7044.102.2.233  1
1988 Fanselow MS, Calcagnetti DJ, Helmstetter FJ. Peripheral versus intracerebroventricular administration of quaternary naltrexone and the enhancement of Pavlovian conditioning. Brain Research. 444: 147-52. PMID 3359284 DOI: 10.1016/0006-8993(88)90921-3  1
1988 Calcagnetti DJ, Helmstetter FJ, Fanselow MS. Analgesia produced by centrally administered DAGO, DPDPE and U50488H in the formalin test. European Journal of Pharmacology. 153: 117-22. PMID 3215276 DOI: 10.1016/0014-2999(88)90595-X  1
1988 Fanselow MS, Lester LS, Helmstetter FJ. Changes in feeding and foraging patterns as an antipredator defensive strategy: a laboratory simulation using aversive stimulation in a closed economy. Journal of the Experimental Analysis of Behavior. 50: 361-74. PMID 3209954 DOI: 10.1901/jeab.1988.50-361  1
1988 Helmstetter FJ, Calcagnetti DJ, Cramer CP, Fanselow MS. Ethylketocyclazocine and bremazocine analgesia in neonatal rats. Pharmacology, Biochemistry, and Behavior. 30: 817-21. PMID 3067243 DOI: 10.1016/0091-3057(88)90105-0  1
1987 Helmstetter FJ, Fanselow MS. Strain differences in reversal of conditional analgesia by opioid antagonists. Behavioral Neuroscience. 101: 735-7. PMID 3675853 DOI: 10.1037/0735-7044.101.5.735  1
1987 Calcagnetti DJ, Helmstetter FJ, Fanselow MS. Central and peripheral injection of quaternary antagonist, SR58002C, reduces drinking. Physiology & Behavior. 40: 573-5. PMID 3671520 DOI: 10.1016/0031-9384(87)90099-0  1
1987 Helmstetter FJ, Fanselow MS. Effects of naltrexone on learning and performance of conditional fear-induced freezing and opioid analgesia. Physiology & Behavior. 39: 501-5. PMID 3575497 DOI: 10.1016/0031-9384(87)90380-5  1
1987 Calcagnetti DJ, Helmstetter FJ, Fanselow MS. Quaternary naltrexone reveals the central mediation of conditional opioid analgesia. Pharmacology, Biochemistry, and Behavior. 27: 529-31. PMID 2821555 DOI: 10.1016/0091-3057(87)90360-1  1
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