R.D. Hichwa

2.6k total citations · 1 hit paper
30 papers, 2.1k citations indexed

About

R.D. Hichwa is a scholar working on Radiology, Nuclear Medicine and Imaging, Cognitive Neuroscience and Cellular and Molecular Neuroscience. According to data from OpenAlex, R.D. Hichwa has authored 30 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Radiology, Nuclear Medicine and Imaging, 14 papers in Cognitive Neuroscience and 4 papers in Cellular and Molecular Neuroscience. Recurrent topics in R.D. Hichwa's work include Medical Imaging Techniques and Applications (11 papers), Functional Brain Connectivity Studies (10 papers) and Advanced MRI Techniques and Applications (7 papers). R.D. Hichwa is often cited by papers focused on Medical Imaging Techniques and Applications (11 papers), Functional Brain Connectivity Studies (10 papers) and Advanced MRI Techniques and Applications (7 papers). R.D. Hichwa collaborates with scholars based in United States. R.D. Hichwa's co-authors include G. Leonard Watkins, Laura L. Boles Ponto, Nancy C. Andreasen, Daniel S. OʼLeary, Ted Cizadlo, Stephan Arndt, Karim Rezai, Richard R. Hurtig, Gary D. Hutchins and Susan K. Schultz and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Blood and NeuroImage.

In The Last Decade

R.D. Hichwa

29 papers receiving 2.0k 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.

Schizophrenia and cognitive dysmetria: a positron-emission tomography study of dysfunctional prefrontal-thalamic-cerebellar circuitry.

1996 514 citations Nancy C. Andreasen, Daniel S. OʼLeary et al. Proceedings of the National Academy of Sciences profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R.D. Hichwa United States	19	1.3k	570	444	341	210	30	2.1k
S. Grootoonk United Kingdom	13	964 0.8×	795 1.4×	332 0.7×	270 0.8×	171 0.8×	30	2.0k
Nicholas J. Coupland Canada	25	798 0.6×	488 0.9×	278 0.6×	400 1.2×	135 0.6×	53	2.0k
Gerda Leinsinger Germany	28	1.1k 0.9×	654 1.1×	603 1.4×	399 1.2×	212 1.0×	48	2.9k
Bryan T. Woods United States	24	1.2k 1.0×	577 1.0×	1.2k 2.7×	387 1.1×	135 0.6×	53	2.8k
Steven A. Chance United Kingdom	28	914 0.7×	668 1.2×	416 0.9×	234 0.7×	308 1.5×	59	2.2k
Christopher C. Gallen United States	18	1.2k 0.9×	443 0.8×	360 0.8×	162 0.5×	199 0.9×	31	2.0k
D.R. Weinberger United States	29	1.6k 1.3×	524 0.9×	1.1k 2.4×	640 1.9×	298 1.4×	64	3.0k
Masatake Uno Japan	18	888 0.7×	401 0.7×	625 1.4×	412 1.2×	321 1.5×	39	2.1k
Ryoi Goto Japan	24	1.0k 0.8×	586 1.0×	324 0.7×	138 0.4×	190 0.9×	39	2.1k
E. Luders United States	16	1.0k 0.8×	616 1.1×	386 0.9×	187 0.5×	70 0.3×	20	1.7k

Countries citing papers authored by R.D. Hichwa

Since Specialization

Citations

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

Fields of papers citing papers by R.D. Hichwa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R.D. Hichwa. 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 R.D. Hichwa. The network helps show where R.D. Hichwa may publish in the future.

Co-authorship network of co-authors of R.D. Hichwa

This figure shows the co-authorship network connecting the top 25 collaborators of R.D. Hichwa. A scholar is included among the top collaborators of R.D. Hichwa 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 R.D. Hichwa. R.D. Hichwa 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

Schultz, Susan K., Daniel S. OʼLeary, Laura L. Boles Ponto, et al.. (1999). Age-related changes in regional cerebral blood flow among young to midlife adults. Neuroreport. 10(12). 2493–2496. 78 indexed citations

Schultz, Susan K., Daniel S. OʼLeary, Nancy C. Andreasen, et al.. (1999). AGE-RELATED CHANGES IN REGIONAL CEREBRAL BLOOD FLOW: A POSITRON EMISSION TOMOGRAPHY STUDY OF HEALTHY ADULTS. American Journal of Geriatric Psychiatry. 7. 57–58. 1 indexed citations

OʼLeary, Daniel S., Nancy C. Andreasen, Richard R. Hurtig, et al.. (1997). Auditory and visual attention assessed with PET. Human Brain Mapping. 5(6). 422–436. 61 indexed citations

Paradiso, Sergio, Robert G. Robinson, Nancy C. Andreasen, et al.. (1997). Emotional activation of limbic circuitry in elderly normal subjects in a PET study. American Journal of Psychiatry. 154(3). 384–389. 106 indexed citations

Grabowski, Thomas J., Regine Frank, C. K. Brown, et al.. (1996). Reliability of PET activation across statistical methods, subject groups, and sample sizes. Human Brain Mapping. 4(1). 23–46. 61 indexed citations

Giordani, Bruno, Stanley Berent, Michel Boivin, et al.. (1995). Longitudinal Neuropsychological and Genetic Linkage Analysis of Persons at Risk for Huntington's Disease. Archives of Neurology. 52(1). 59–64. 61 indexed citations

Paradiso, Sergio, R. G. Robinson, Stephan Arndt, et al.. (1995). Cerebral blood flow correlates of emotion in elderly humans. Biological Psychiatry. 37(9). 660–660. 1 indexed citations

Arndt, Stephan, Ted Cizadlo, Nancy C. Andreasen, et al.. (1995). A comparison of approaches to the statistical analysis of [15O]H2O PET cognitive activation studies. Journal of Neuropsychiatry. 7(2). 155–168. 26 indexed citations

Andreasen, Nancy C., Daniel S. OʼLeary, Ted Cizadlo, et al.. (1995). Remembering the past: two facets of episodic memory explored with positron emission tomography. American Journal of Psychiatry. 152(11). 1576–1585. 463 indexed citations

10.

Andreasen, Nancy C., Daniel S. OʼLeary, Stephan Arndt, et al.. (1995). Short-term and long-term verbal memory: a positron emission tomography study.. Proceedings of the National Academy of Sciences. 92(11). 5111–5115. 226 indexed citations

11.

Grabowski, Thomas J., H. Damasio, Regine Frank, et al.. (1994). A new technique for pet slice orientation and MRI‐PET coregistration. Human Brain Mapping. 2(3). 123–133. 22 indexed citations

12.

Grabowski, Thomas J., H. Damasio, Regine Frank, et al.. (1994). Neuroanatomical analysis of functional brain images: Validation with retinotopic mapping. Human Brain Mapping. 2(3). 134–148. 6 indexed citations

13.

Kahn, Daniel, et al.. (1994). Positron emission tomographic measurement of bone marrow blood flow to the pelvis and lumbar vertebrae in young normal adults [published erratum appears in Blood 1994 Nov 15;84(10):3602]. Blood. 83(4). 958–963. 45 indexed citations

14.

Madsen, Mark T., et al.. (1992). Spatial resolution and count density requirements in brain SPECT imaging. Physics in Medicine and Biology. 37(8). 1625–1636. 22 indexed citations

15.

Sackellares, J. Chris, G. J. Siegel, Bassel Abou‐Khalil, et al.. (1990). Differences between lateral and mesial temporal metabolism interictally in epilepsy of mesial temporal origin. Neurology. 40(9). 1420–1420. 94 indexed citations

16.

Mulholland, G. Keith, et al.. (1989). A reliable pressurized water target for F‐18 production at high beam currents. Journal of Labelled Compounds and Radiopharmaceuticals. 26(1-12). 192–193. 19 indexed citations

17.

Hichwa, R.D., et al.. (1989). Design of target systems for production of PET nuclides. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 40-41. 1110–1113.

18.

Hichwa, R.D., et al.. (1987). Gas targets for the production of 15O, 11C and 18F for pet studies. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 24-25. 932–936. 3 indexed citations

19.

Hutchins, Gary D., R.D. Hichwa, & Robert A. Koeppe. (1986). A Continuous Flow Input Function Detector for H2 15O Blood Flow Studies in Positron Emission Tomography. IEEE Transactions on Nuclear Science. 33(1). 546–549. 38 indexed citations

20.

Yates, S. W., I. Y. Lee, Noah R. Johnson, et al.. (1980). High-spin properties ofEr164in the multiple band crossing region. Physical Review C. 21(6). 2366–2384. 27 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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