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Fred J. Helmstetter

D-Index & Metrics

Neuroscience

D-Index
58
Citations
9755
World Ranking
4234
National Ranking
1909

Fred J. Helmstetter publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where Fred J. Helmstetter sits on this spectrum.

38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientists 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38 publications 887+

This scientist: 130 publications — 33rd percentile

33% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 887 publications or more.

Fred J. Helmstetter D-index placement in Neuroscience in 2026

The chart shows the D-index (discipline H-index) distribution of Neuroscience scientists ranked by Research.com in 2026. The highlighted bar marks where Fred J. Helmstetter sits on this spectrum.

30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30 D-Index 163+

This scientist: 58 D-Index — 57th percentile

57% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

Overview

Fred J. Helmstetter is affiliated with the University of Wisconsin-Milwaukee in the United States. Their research primarily spans the fields of Neuroscience and Biochemistry, Genetics and Molecular Biology, with a notable focus on Cellular and Molecular Neuroscience, Cognitive Neuroscience, Molecular Biology, Behavioral Neuroscience, and Genetics.

The scientist's work extensively covers topics related to Memory and Neural Mechanisms, Neuroscience and Neuropharmacology Research, Stress Responses and Cortisol, Genetics and Neurodevelopmental Disorders, Ubiquitin and Proteasome Pathways, Neuroendocrine Regulation and Behavior, and Receptor Mechanisms and Signaling.

Frequent collaborators include Sydney Trask, Nicole C. Ferrara, Shane E. Pullins, Brooke N. Dulka, and David S. Reis.

Helmstetter's recent published papers demonstrate a focus on memory encoding, fear discrimination learning, and the molecular mechanisms underlying memory and aging in various brain regions. Selected recent papers include:

  • The anterior retrosplenial cortex encodes event-related information and the posterior retrosplenial cortex encodes context-related information during memory formation, 2021, Neuropsychopharmacology
  • Decreased cued fear discrimination learning in female rats as a function of estrous phase, 2020, Learning & Memory
  • Age-Related Memory Impairment and Sex-Specific Alterations in Phosphorylation of the Rpt6 Proteasome Subunit and Polyubiquitination in the Basolateral Amygdala and Medial Prefrontal Cortex, 2021, Frontiers in Aging Neuroscience
  • Optogenetic inhibition of either the anterior or posterior retrosplenial cortex disrupts retrieval of a trace, but not delay, fear memory, 2021, Neurobiology of Learning and Memory
  • Unique roles for the anterior and posterior retrosplenial cortices in encoding and retrieval of memory for context, 2022, Cerebral Cortex

Helmstetter's publications appear frequently in journals such as Neurobiology of Learning and Memory, Learning & Memory, International Journal of Molecular Sciences, Neuropsychopharmacology, and Frontiers in Aging Neuroscience.

Best Publications

  • Neural substrates mediating human delay and trace fear conditioning

    David C. Knight;Dominic T. Cheng;Christine N. Smith;Elliot A. Stein;Elliot A. Stein

  • Effects of muscimol applied to the basolateral amygdala on acquisition and expression of contextual fear conditioning in rats.

    Fred J. Helmstetter;Patrick S. Bellgowan

  • Amygdala and hippocampal activity during acquisition and extinction of human fear conditioning

    David C. Knight;David C. Knight;Christine N. Smith;Christine N. Smith;Dominic T. Cheng;Elliot A. Stein;Elliot A. Stein

  • Translational control via the mammalian target of rapamycin pathway is critical for the formation and stability of long-term fear memory in amygdala neurons.

    Ryan G. Parsons;Georgette M. Gafford;Fred J. Helmstetter

  • The amygdala is essential for the expression of conditional hypoalgesia.

    Fred J. Helmstetter

  • Conditional analgesia, defensive freezing, and benzodiazepines.

    Michael S. Fanselow;Fred J. Helmstetter

  • Trace and contextual fear conditioning require neural activity and NMDA receptor-dependent transmission in the medial prefrontal cortex

    Marieke R. Gilmartin;Fred J. Helmstetter

  • Functional MRI of human amygdala activity during Pavlovian fear conditioning: Stimulus processing versus response expression

    Dominic T. Cheng;David C. Knight;David C. Knight;Christine N. Smith;Elliot A. Stein

  • Prefrontal cortical regulation of fear learning.

    Marieke R. Gilmartin;Marieke R. Gilmartin;Nicholas L. Balderston;Fred J. Helmstetter

  • Chronic stress selectively reduces hippocampal volume in rats: a longitudinal magnetic resonance imaging study.

    Taekwan Lee;Tim Jarome;Shi Jiang Li;Jeansok J. Kim

  • Acquisition of fear conditioning in rats requires the synthesis of mRNA in the amygdala.

    David J. Bailey;Jeansok J. Kim;William Sun;Richard F. Thompson

  • Activity Dependent Protein Degradation Is Critical for the Formation and Stability of Fear Memory in the Amygdala

    Timothy J. Jarome;Craig T. Werner;Janine L. Kwapis;Fred J. Helmstetter

  • Antinociception following opioid stimulation of the basolateral amygdala is expressed through the periaqueductal gray and rostral ventromedial medulla

    Fred J Helmstetter;Sheralee A Tershner;Laura H Poore;Patrick S.F Bellgowan

  • Human amygdala activity during the expression of fear responses.

    Dominic T. Cheng;David C. Knight;Christine N. Smith;Fred J. Helmstetter

  • Lesions of the amygdala block conditional hypoalgesia on the tail flick test.

    Fred J. Helmstetter;Patrick S. Bellgowan

  • Contribution of the amygdala to learning and performance of conditional fear.

    Fred J. Helmstetter

  • The ubiquitin-proteasome system as a critical regulator of synaptic plasticity and long-term memory formation.

    Timothy J. Jarome;Fred J. Helmstetter

  • Time-Dependent Expression of Arc and Zif268 after Acquisition of Fear Conditioning

    Mary E. Lonergan;Georgette M. Gafford;Timothy J. Jarome;Fred J. Helmstetter

  • Stress-induced hypoalgesia and defensive freezing are attenuated by application of diazepam to the amygdala.

    Fred J. Helmstetter

  • Functional MRI of human amygdala activity during Pavlovian fear conditioning: stimulus processing versus response expression.

    Unknown

  • Lesions of the periaqueductal gray and rostral ventromedial medulla disrupt antinociceptive but not cardiovascular aversive conditional responses

    Fred J. Helmstetter;Sheralee A. Tershner

Frequent Co-Authors

Michael S. Fanselow
Michael S. Fanselow University of California, Los Angeles
Nicholas L. Balderston
Nicholas L. Balderston University of Pennsylvania
Patrick S.F. Bellgowan
Patrick S.F. Bellgowan National Institutes of Health
Elliot A. Stein
Elliot A. Stein National Institute on Drug Abuse
Christine L. Larson
Christine L. Larson University of Wisconsin–Milwaukee
Sylvain Baillet
Sylvain Baillet McGill University
Jeansok J. Kim
Jeansok J. Kim University of Washington
Arielle R. Baskin-Sommers
Arielle R. Baskin-Sommers Yale University
Jonathan D. Wallis
Jonathan D. Wallis University of California, Berkeley
Francisco Gonzalez-Lima
Francisco Gonzalez-Lima The University of Texas at Austin

External Links

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Related Online Degrees & Career Pathways

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Best Scientists Citing Fred J. Helmstetter

Joseph E. LeDoux

Joseph E. LeDoux

New York University

Publications: 76

Michael S. Fanselow

Michael S. Fanselow

University of California, Los Angeles

Publications: 71

Stephen Maren

Stephen Maren

University of Illinois at Urbana-Champaign

Publications: 47

Kerry J. Ressler

Kerry J. Ressler

Harvard University

Publications: 38

Michael Davis

Michael Davis

Georgia Institute of Technology

Publications: 33

Jeansok J. Kim

Jeansok J. Kim

University of Washington

Publications: 30

Marcus Lira Brandão

Marcus Lira Brandão

Universidade de São Paulo

Publications: 28

Abba J. Kastin

Abba J. Kastin

Louisiana State University

Publications: 24

Glenn E. Schafe

Glenn E. Schafe

City University of New York

Publications: 24

Francisco Gonzalez-Lima

Francisco Gonzalez-Lima

The University of Texas at Austin

Publications: 24

Mohammed R. Milad

Mohammed R. Milad

New York University

Publications: 22

Mohammed R Milad

Mohammed R Milad

The University of Texas Health Science Center at Houston

Publications: 22

Gregory J. Quirk

Gregory J. Quirk

University of Puerto Rico

Publications: 22

Christian J. Merz

Christian J. Merz

Ruhr University Bochum

Publications: 21

David P. Finn

David P. Finn

University of Galway

Publications: 21

Elizabeth A. Phelps

Elizabeth A. Phelps

Harvard University

Publications: 20

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