Ronald P. Hammer

7.5k citations

96 papers · 6.8k indexed · 1 hit paper · h-index 37

Cellular and Molecular Neuroscience top 0.2%
Molecular Biology top 5%
Cognitive Neuroscience top 1%
Social Psychology top 0.5%
Behavioral Neuroscience top 0.2%

Co-authors: Ella M. Nikulina Klaus A. Miczek Miles Herkenham Arnold B. Scheibel Robert S. Bridges Herbert E. Covington Rémi Quirion Candace B. Pert
Topics: Neurotransmitter Receptor Influence on Behavior (39 papers)Neuroscience and Neuropharmacology Research (33 papers)Neuroendocrine regulation and behavior (26 papers)
Cited by: Behavioral Neuroscience Cellular and Molecular Neuroscience Biological Psychiatry
Journals: Proceedings of the National Academy of Sciences Nucleic Acids Research Journal of Neuroscience
Partner nations: United States China Japan

In The Last Decade

Ronald P. Hammer

96 papers receiving 6.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Autoradiographic localization of dopamine D1 and D2 receptors in rat nucleus accumbens: Resistance to differential rearing conditions

1991 3.1k citations Ronald P. Hammer et al. Neuroscience profile →

Peers

Countries citing papers authored by Ronald P. Hammer

Since Specialization

Citations

This map shows the geographic impact of Ronald P. Hammer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ronald P. Hammer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ronald P. Hammer more than expected).

Fields of papers citing papers by Ronald P. Hammer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ronald P. Hammer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ronald P. Hammer. The network helps show where Ronald P. Hammer may publish in the future.

Co-authorship network of co-authors of Ronald P. Hammer

This figure shows the co-authorship network connecting the top 25 collaborators of Ronald P. Hammer. A scholar is included among the top collaborators of Ronald P. Hammer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ronald P. Hammer. Ronald P. Hammer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Enhanced psychostimulant response, but not social avoidance, depends on GluA1 AMPA receptors in VTA dopamine neurons following intermittent social defeat stress in rats 2020 ·European Journal of Neuroscience ·(unknown),(unknown),Ronald P. Hammer,Ella M. Nikulina	4
2	Overexpression of BDNF in the ventral tegmental area enhances binge cocaine self-administration in rats exposed to repeated social defeat 2016 ·Neuropharmacology ·Junshi Wang,Ryan M. Bastle,Caroline E. Bass,Ronald P. Hammer,Janet L. Neisewander,Ella M. Nikulina	13
3	Chronic stress enhanced fear memories are associated with increased amygdala zif268 mRNA expression and are resistant to reconsolidation 2015 ·Neurobiology of Learning and Memory ·Ann N. Hoffman,(unknown),(unknown),Lucas R. Watterson,Ella M. Nikulina,Ronald P. Hammer,Cheryl D. Conrad	37
4	Neurotrophins in the ventral tegmental area: Role in social stress, mood disorders and drug abuse 2014 ·Neuroscience ·Ella M. Nikulina,Chad E. Johnston,Junshi Wang,Ronald P. Hammer	38
5	Knockdown of ventral tegmental area mu-opioid receptors in rats prevents effects of social defeat stress: Implications for amphetamine cross-sensitization, social avoidance, weight regulation and expression of brain-derived neurotrophic factor 2014 ·Neuropharmacology ·(unknown),(unknown),Amy W. Lasek,Ronald P. Hammer,Ella M. Nikulina	19
6	cAMP Response Element Binding Protein Phosphorylation in Nucleus Accumbens Underlies Sustained Recovery of Sensorimotor Gating Following Repeated D2-Like Receptor Agonist Treatment in Rats 2010 ·Biological Psychiatry ·(unknown),Thomas Green,Steven J. Siegel,Eric J. Nestler,Ronald P. Hammer	14
7	Genomic survey of prepulse inhibition in mouse chromosome substitution strains 2009 ·Genes Brain & Behavior ·Melanie P. Leussis,(unknown),(unknown),(unknown),Kimberly A. Aldinger,Graham N. Rockwell,Ronald P. Hammer,(unknown),Jonathan B. Singer,Joseph H. Nadeau,Pamela Sklar,Tracey L. Petryshen	11
8	Two Quantitative Trait Loci for Prepulse Inhibition of Startle Identified on Mouse Chromosome 16 Using Chromosome Substitution Strains 2005 ·Genetics ·Tracey L. Petryshen,Andrew Kirby,Ronald P. Hammer,Shaun Purcell,Sinéad B. O'Leary,Jonathan B. Singer,Annie E. Hill,Joseph H. Nadeau,Mark J. Daly,Pamela Sklar	30
9	Prolonged Effects of Repeated Social Defeat Stress on mRNA Expression and Function of μ-Opioid Receptors in the Ventral Tegmental Area of Rats 2005 ·Neuropsychopharmacology ·Ella M. Nikulina,Klaus A. Miczek,Ronald P. Hammer	47
10	Heritable Differences in the Dopaminergic Regulation of Behavior in Rats: Relationship to D2-Like Receptor G-Protein Function 2005 ·Neuropsychopharmacology ·Neal R. Swerdlow,(unknown),(unknown),Jody M. Shoemaker,(unknown),Ronald P. Hammer	25
11	Repeated Quinpirole Treatment Increases cAMP-Dependent Protein Kinase Activity and CREB Phosphorylation in Nucleus Accumbens and Reverses Quinpirole-Induced Sensorimotor Gating Deficits in Rats 2004 ·Neuropsychopharmacology ·(unknown),(unknown),Bruce T. Hope,Ronald P. Hammer	31
12	Brief Social Defeat Stress: Long Lasting Effects on Cocaine Taking During a Binge and Zif268 mRNA Expression in the Amygdala and Prefrontal Cortex 2004 ·Neuropsychopharmacology ·Herbert E. Covington,Takefumi Kikusui,(unknown),Ella M. Nikulina,Ronald P. Hammer,Klaus A. Miczek	113
13	Brain circuitry and signaling in psychiatry 2002 ·Gary B. Kaplan,Ronald P. Hammer	3
14	Inhibition of nitric oxide synthase in the ventral tegmental area attenuates cocaine sensitization in rats 2000 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·John Byrnes,(unknown),Julie Onton,Ronald P. Hammer	17
15	Sensitization of neuronal response to cocaine during withdrawal following chronic treatment 1996 ·Neuroreport ·Ronald P. Hammer,(unknown)	13
16	Gonadal steroid hormones upregulate medial preoptic μ-opioid receptors in the rat 1995 ·European Journal of Pharmacology ·Lei Zhou,Ronald P. Hammer	22
17	Hormonal Regulation of Medial Preoptic μ-Opiate Receptor Density before and after Parturition 1992 ·Neuroendocrinology ·Ronald P. Hammer,(unknown),Robert S. Bridges	33
18	Dynamic Patterns of Medial Preoptic μ-Opiate Receptor Regulation by Gonadal Steroid Hormones 1992 ·Neuroendocrinology ·(unknown),(unknown),Ronald P. Hammer	36
19	Regional dependence of morphine-induced μ-opiate receptor down-regulation in perinatal rat brain 1991 ·European Journal of Pharmacology ·Ronald P. Hammer,(unknown),(unknown)	26
20	Preoptic area opioids and opiate receptors increase during pregnancy and decrease during lactation 1987 ·Brain Research ·Ronald P. Hammer,Robert S. Bridges	88

About Ronald P. Hammer

Ronald P. Hammer is a scholar working on Behavioral Neuroscience, Cellular and Molecular Neuroscience and Developmental Neuroscience, having authored 96 papers that have together received 6.8k indexed citations. Recurring topics across this work include Neurotransmitter Receptor Influence on Behavior (39 papers), Neuroscience and Neuropharmacology Research (33 papers) and Neuroendocrine regulation and behavior (26 papers). The work is most often cited by research in Behavioral Neuroscience (1.2k citations), Cellular and Molecular Neuroscience (4.1k citations) and Biological Psychiatry (317 citations). Ronald P. Hammer has collaborated with scholars based in United States, China and Japan. Frequent co-authors include Ella M. Nikulina, Klaus A. Miczek, Miles Herkenham, Arnold B. Scheibel, Robert S. Bridges, Herbert E. Covington, Rémi Quirion, Candace B. Pert, Sanya Fanous and Daniel W. Clow. Their work appears in journals such as Proceedings of the National Academy of Sciences, Nucleic Acids Research and Journal of Neuroscience.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact