Robert J. Hamm

8.4k total citations · 2 hit papers
120 papers, 7.0k citations indexed

About

Robert J. Hamm is a scholar working on Neurology, Epidemiology and Molecular Biology. According to data from OpenAlex, Robert J. Hamm has authored 120 papers receiving a total of 7.0k indexed citations (citations by other indexed papers that have themselves been cited), including 72 papers in Neurology, 46 papers in Epidemiology and 29 papers in Molecular Biology. Recurrent topics in Robert J. Hamm's work include Traumatic Brain Injury and Neurovascular Disturbances (72 papers), Traumatic Brain Injury Research (45 papers) and Cardiac Arrest and Resuscitation (21 papers). Robert J. Hamm is often cited by papers focused on Traumatic Brain Injury and Neurovascular Disturbances (72 papers), Traumatic Brain Injury Research (45 papers) and Cardiac Arrest and Resuscitation (21 papers). Robert J. Hamm collaborates with scholars based in United States, Germany and China. Robert J. Hamm's co-authors include Bruce G. Lyeth, Larry W. Jenkins, Ronald L. Hayes, G. Bruce Pike, Dianne M. O’Dell, John T. Povlishock, Harold F. Young, C. Edward Dixon, Guy L. Clifton and Robert L. Findling and has published in prestigious journals such as Brain Research, Journal of neurosurgery and Journal of Cerebral Blood Flow & Metabolism.

In The Last Decade

Robert J. Hamm

118 papers receiving 6.8k 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.

A fluid percussion model of experimental brain injury in the rat

1987 887 citations Bruce G. Lyeth, John T. Povlishock et al. Journal of neurosurgery profile →
The Rotarod Test: An Evaluation of Its Effectiveness in Assessing Motor Deficits Following Traumatic Brain Injury

1994 545 citations Robert J. Hamm, G. Bruce Pike et al. Journal of Neurotrauma profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Robert J. Hamm United States	44	4.4k	2.7k	2.1k	1.5k	1.4k	120	7.0k
Bruce G. Lyeth United States	51	5.6k 1.2×	3.1k 1.1×	2.8k 1.3×	2.0k 1.4×	1.8k 1.3×	131	8.7k
Niklas Marklund Sweden	40	3.2k 0.7×	1.8k 0.7×	1.5k 0.7×	862 0.6×	820 0.6×	166	5.5k
Anthony E. Kline United States	45	2.8k 0.6×	2.5k 0.9×	964 0.5×	497 0.3×	1.2k 0.9×	117	4.4k
Mordecai Y.‐T. Globus United States	30	2.1k 0.5×	557 0.2×	1.2k 0.6×	1.9k 1.3×	1.7k 1.3×	40	6.5k
Sandy R. Shultz Australia	44	2.6k 0.6×	2.2k 0.8×	1.5k 0.7×	710 0.5×	864 0.6×	165	5.3k
Chaim G. Pick Israel	49	1.6k 0.4×	947 0.4×	1.9k 0.9×	1.8k 1.2×	328 0.2×	179	6.6k
Bridgette D. Semple Australia	34	1.7k 0.4×	1.1k 0.4×	1.4k 0.7×	663 0.5×	389 0.3×	84	5.1k
Dennis M. Feeney United States	30	1.7k 0.4×	1.1k 0.4×	661 0.3×	1.2k 0.8×	358 0.3×	72	4.1k
Stig Rehncrona Sweden	43	4.6k 1.0×	392 0.1×	3.6k 1.7×	4.9k 3.4×	299 0.2×	88	9.9k
Ingmar Rosén Sweden	41	1.0k 0.2×	452 0.2×	595 0.3×	1.0k 0.7×	722 0.5×	122	5.9k

Countries citing papers authored by Robert J. Hamm

Since Specialization

Citations

This map shows the geographic impact of Robert J. Hamm'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 Robert J. Hamm with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert J. Hamm more than expected).

Fields of papers citing papers by Robert J. Hamm

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert J. Hamm. 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 Robert J. Hamm. The network helps show where Robert J. Hamm may publish in the future.

Co-authorship network of co-authors of Robert J. Hamm

This figure shows the co-authorship network connecting the top 25 collaborators of Robert J. Hamm. A scholar is included among the top collaborators of Robert J. Hamm 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 Robert J. Hamm. Robert J. Hamm is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Sun, Dong, M. Ross Bullock, Melissa J. McGinn, et al.. (2008). Basic fibroblast growth factor-enhanced neurogenesis contributes to cognitive recovery in rats following traumatic brain injury. Experimental Neurology. 216(1). 56–65. 120 indexed citations

Kokiko‐Cochran, Olga N., et al.. (2008). Delayed glucose treatment improves cognitive function following fluid-percussion injury. Neuroscience Letters. 436(1). 27–30. 11 indexed citations

Hamm, Robert J., et al.. (2007). A review of pharmacological treatments used in experimental models of traumatic brain injury. Brain Injury. 21(3). 259–274. 29 indexed citations

Zhou, Zhengwen, Joseph E. Levasseur, Ann C. Rice, et al.. (2007). Effect of lactate therapy upon cognitive deficits after traumatic brain injury in the rat. Acta Neurochirurgica. 149(9). 919–927. 76 indexed citations

Wilson, Margaret S., et al.. (2003). Haloperidol, but Not Olanzapine, Impairs Cognitive Performance After Traumatic Brain Injury in Rats. American Journal of Physical Medicine & Rehabilitation. 82(11). 871–879. 69 indexed citations

Phillips, L.L., Bruce G. Lyeth, Robert J. Hamm, T.M. Reeves, & J. T. Povlishock. (1998). Glutamate antagonism during secondary deafferentation enhances cognition and axo-dendritic integrity after traumatic brain injury. Hippocampus. 8(4). 390–401. 27 indexed citations

Pike, G. Bruce & Robert J. Hamm. (1997). Activating the Posttraumatic Cholinergic System for the Treatment of Cognitive Impairment Following Traumatic Brain Injury. Pharmacology Biochemistry and Behavior. 57(4). 785–791. 37 indexed citations

Reeves, Thomas M., Bruce G. Lyeth, Linda L. Phillips, Robert J. Hamm, & John T. Povlishock. (1997). The effects of traumatic brain injury on inhibition in the hippocampus and dentate gyrus. Brain Research. 757(1). 119–132. 94 indexed citations

Liu, Shanliang, et al.. (1997). Inhibition of nitric oxide synthase potentiates hypertension and increases mortality in traumatically brain-injured rats. Molecular and Chemical Neuropathology. 30(1-2). 125–137. 37 indexed citations

10.

Temple, Meredith D. & Robert J. Hamm. (1996). Chronic, post-injury administration of D-cycloserine, an NMDA partial agonist, enhances cognitive performance following experimental brain injury. Brain Research. 741(1-2). 246–251. 52 indexed citations

11.

Muir, Judith K., Bruce G. Lyeth, Robert J. Hamm, & Earl F. Ellis. (1995). The Effect of Acute Cocaine or Lidocaine on Behavioral Function following Fluid Percussion Brain Injury in Rats. Journal of Neurotrauma. 12(1). 87–97. 17 indexed citations

12.

Delahunty, Thérèse M., et al.. (1995). Metabotropic glutamate antagonist, MCPG, treatment of traumatic brain injury in rats. Brain Research. 700(1-2). 299–302. 50 indexed citations

13.

Pike, G. Bruce & Robert J. Hamm. (1995). Post-injury administration of BIBN 99, a selective muscarinic M2 receptor antagonist, improves cognitive performance following traumatic brain injury in rats. Brain Research. 686(1). 37–43. 44 indexed citations

14.

Hamm, Robert J., G. Bruce Pike, Dianne M. O’Dell, & Bruce G. Lyeth. (1994). Traumatic brain injury enhances the amnesic effect of an NMDA antagonist in rats. Journal of neurosurgery. 81(2). 267–271. 21 indexed citations

15.

Jiang, Ji Y., Bruce G. Lyeth, Thérèse M. Delahunty, Linda L. Phillips, & Robert J. Hamm. (1994). Muscarinic cholinergic receptor binding in rat brain at 15 days following traumatic brain injury. Brain Research. 651(1-2). 123–128. 38 indexed citations

16.

Lyeth, Bruce G., Ji Y. Jiang, Thérèse M. Delahunty, Linda L. Phillips, & Robert J. Hamm. (1994). Muscarinic cholinergic receptor binding in rat brain following traumatic brain injury. Brain Research. 640(1-2). 240–245. 43 indexed citations

17.

Hamm, Robert J., G. Bruce Pike, Dianne M. O’Dell, Bruce G. Lyeth, & Larry W. Jenkins. (1994). The Rotarod Test: An Evaluation of Its Effectiveness in Assessing Motor Deficits Following Traumatic Brain Injury. Journal of Neurotrauma. 11(2). 187–196. 545 indexed citations breakdown →

18.

Lyeth, Bruce G., Shanliang Liu, & Robert J. Hamm. (1993). Combined scopolamine and morphine treatment of traumatic brain injury in the rat. Brain Research. 617(1). 69–75. 43 indexed citations

19.

Hamm, Robert J., Dianne M. O’Dell, G. Bruce Pike, & Bruce G. Lyeth. (1993). Cognitive impairment following traumatic brain injury: the effect of pre- and post-injury administration of scopolamine and MK-801. Cognitive Brain Research. 1(4). 223–226. 79 indexed citations

20.

Knisely, Janet S. & Robert J. Hamm. (1989). Physostigmine-induced analgesia in young, middle-aged, and senescent rats. Experimental Aging Research. 15(1). 3–11. 11 indexed citations

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.

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