Pak Sham

1.3k total citations
18 papers, 925 citations indexed

About

Pak Sham is a scholar working on Psychiatry and Mental health, Physiology and Genetics. According to data from OpenAlex, Pak Sham has authored 18 papers receiving a total of 925 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Psychiatry and Mental health, 4 papers in Physiology and 4 papers in Genetics. Recurrent topics in Pak Sham's work include Alzheimer's disease research and treatments (4 papers), Schizophrenia research and treatment (4 papers) and Genetic Associations and Epidemiology (3 papers). Pak Sham is often cited by papers focused on Alzheimer's disease research and treatments (4 papers), Schizophrenia research and treatment (4 papers) and Genetic Associations and Epidemiology (3 papers). Pak Sham collaborates with scholars based in United Kingdom, Germany and Belgium. Pak Sham's co-authors include Robin Murray, John Powell, Christopher E. Shaw, Simon Lovestone, P. Nigel Leigh, Ammar Al‐Chalabi, Marjan Bakker, Helen L. Byers, Sarah J. Tabrizi and Steven Lynham and has published in prestigious journals such as The Lancet, PLoS ONE and American Journal of Psychiatry.

In The Last Decade

Pak Sham

17 papers receiving 887 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Pak Sham United Kingdom 12 374 305 238 163 153 18 925
Shinobu Kawakatsu Japan 17 324 0.9× 319 1.0× 240 1.0× 138 0.8× 158 1.0× 67 944
Hardev Pall United Kingdom 18 117 0.3× 208 0.7× 218 0.9× 690 4.2× 148 1.0× 42 1.3k
Johannes Thome United Kingdom 18 182 0.5× 165 0.5× 344 1.4× 80 0.5× 173 1.1× 31 927
Fuji Yokoi United States 15 308 0.8× 63 0.2× 520 2.2× 240 1.5× 263 1.7× 35 1.7k
Thomas A. Macek United States 17 446 1.2× 81 0.3× 481 2.0× 68 0.4× 146 1.0× 35 1.3k
Elena Shumay United States 25 145 0.4× 129 0.4× 717 3.0× 84 0.5× 243 1.6× 40 1.6k
Pippa S. Loupe United States 15 642 1.7× 259 0.8× 108 0.5× 82 0.5× 34 0.2× 34 919
Jeremy D. Isaacs United Kingdom 15 293 0.8× 130 0.4× 450 1.9× 277 1.7× 48 0.3× 38 1.1k
Tommaso Piccoli Italy 20 126 0.3× 221 0.7× 241 1.0× 454 2.8× 286 1.9× 46 1.2k
Michelle K. Lupton Australia 19 154 0.4× 450 1.5× 536 2.3× 125 0.8× 70 0.5× 34 1.1k

Countries citing papers authored by Pak Sham

Since Specialization
Citations

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

Fields of papers citing papers by Pak Sham

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Pak Sham. 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 Pak Sham. The network helps show where Pak Sham may publish in the future.

Co-authorship network of co-authors of Pak Sham

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

All Works

18 of 18 papers shown
1.
Yiend, Jenny, Louise Smith, Timothea Toulopoulou, et al.. (2019). Biased cognition in East Asian and Western cultures. PLoS ONE. 14(10). e0223358–e0223358. 11 indexed citations
2.
Toulopoulou, Timothea, Stacey S. Cherny, Richard E. Straub, et al.. (2017). Polygenic risk profile score increases schizophrenia liability mostly through cognition pathways: mathematical causation models with polygenic risk. European Neuropsychopharmacology. 27. S885–S886. 1 indexed citations
3.
Andreou, Penny, Ben Neale, Wai Chen, et al.. (2007). Reaction time performance in ADHD: improvement under fast-incentive condition and familial effects. Psychological Medicine. 37(12). 1703–1715. 143 indexed citations
4.
Hye, Abdul, Steven Lynham, Madhav Thambisetty, et al.. (2006). Proteome-based plasma biomarkers for Alzheimer's disease. Brain. 129(11). 3042–3050. 353 indexed citations
5.
Turner, Martin R., et al.. (2002). Prognostic modelling of therapeutic interventions in amyotrophic lateral sclerosis. Amyotrophic Lateral Sclerosis and Other Motor Neuron Disorders. 3(1). 15–21. 77 indexed citations
6.
Gilvarry, Catherine, Ailsa Russell, Peter B. Jones, et al.. (2001). Verbal fluency in patients with schizophrenia and affective psychoses and their first-degree relatives. Psychological Medicine. 31(4). 695–704. 27 indexed citations
7.
Tunstall, Nigel, Michael J. Owen, Julie Williams, et al.. (2000). Familial influence on variation in age of onset and behavioural phenotype in Alzheimer's disease. The British Journal of Psychiatry. 176(2). 156–159. 44 indexed citations
8.
Marcelis, Machteld, Jim van Os, Pak Sham, et al.. (1998). Psychiatric illness and experience of obstetric complications. Schizophrenia Research. 29(1-2). 16–16. 1 indexed citations
9.
Howard, Robert, Christopher D. Graham, Pak Sham, et al.. (1997). A controlled family study of late-onset non-affective psychosis (late paraphrenia). The British Journal of Psychiatry. 170(6). 511–514. 39 indexed citations
10.
Al‐Chalabi, Ammar, Marjan Bakker, Christopher E. Shaw, et al.. (1996). Association of apolipoprotein E ∈4 allele with bulbar-onset motor neuron disease. The Lancet. 347(8995). 159–160. 81 indexed citations
11.
Howard, Robert, Simon Lovestone, Joseph Birkett, et al.. (1995). Apolipoprotein e genotype and late paraphrenia. International Journal of Geriatric Psychiatry. 10(2). 147–150. 15 indexed citations
12.
Takei, N, Pak Sham, E. O’Callaghan, et al.. (1994). Prenatal exposure to influenza and the development of schizophrenia: is the effect confined to females?. American Journal of Psychiatry. 151(1). 117–119. 66 indexed citations
13.
14.
Takei, N., et al.. (1993). Prenatal influenza and schizophrenia: Is the effect confined to females?. Schizophrenia Research. 9(2-3). 141–141. 16 indexed citations
15.
Takei, N., et al.. (1993). Does prenatal influenza divert susceptible females from later depressive psychosis to schizophrenia?. Schizophrenia Research. 9(2-3). 141–141. 4 indexed citations
16.
Castle, David, Simon Wessely, Pak Sham, & Robin Murray. (1992). Early onset schizophrenia: A preponderance of males with severe illness associated with premorbid dysfunction. Schizophrenia Research. 6(2). 103–104. 3 indexed citations
17.
Duggan, Conor, Pak Sham, Alan S. Lee, & Robin Murray. (1991). Does recurrent depression lead to a change in neuroticism?. Psychological Medicine. 21(4). 985–990. 42 indexed citations
18.
Murray, Robin, David Castle, E. O’Callaghan, et al.. (1991). The neurodevelopmental and adult schizophrenias: Kraepelin lost and Kraepelin found. Schizophrenia Research. 4(3). 282–283. 1 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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