João P. Machado‐de‐Sousa

711 total citations
12 papers, 473 citations indexed

About

João P. Machado‐de‐Sousa is a scholar working on Psychiatry and Mental health, Neurology and Biological Psychiatry. According to data from OpenAlex, João P. Machado‐de‐Sousa has authored 12 papers receiving a total of 473 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Psychiatry and Mental health, 3 papers in Neurology and 3 papers in Biological Psychiatry. Recurrent topics in João P. Machado‐de‐Sousa's work include Schizophrenia research and treatment (5 papers), Tryptophan and brain disorders (3 papers) and Parkinson's Disease Mechanisms and Treatments (2 papers). João P. Machado‐de‐Sousa is often cited by papers focused on Schizophrenia research and treatment (5 papers), Tryptophan and brain disorders (3 papers) and Parkinson's Disease Mechanisms and Treatments (2 papers). João P. Machado‐de‐Sousa collaborates with scholars based in Brazil, Italy and Canada. João P. Machado‐de‐Sousa's co-authors include Jaime E. C. Hallak, Marcos Hortes Nisihara Chagas, Antônio Waldo Zuardi, José A. Crippa, Carolina de Meneses-Gaya, Sônia Regina Loureiro, J.A.S. Crippa, Clarissa Trzesniak, Roberto Molina de Souza and João Mazzoncini de Azevedo Marques and has published in prestigious journals such as Schizophrenia Research, Current Medicinal Chemistry and Alcoholism Clinical and Experimental Research.

In The Last Decade

João P. Machado‐de‐Sousa

12 papers receiving 455 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
João P. Machado‐de‐Sousa Brazil	10	109	98	83	80	73	12	473
Michelle S. Smith United States	5	117 1.1×	61 0.6×	85 1.0×	146 1.8×	35 0.5×	6	898
Zvia Rudich Israel	11	228 2.1×	27 0.3×	174 2.1×	135 1.7×	56 0.8×	21	569
Wolfgang Prause Austria	11	29 0.3×	227 2.3×	58 0.7×	94 1.2×	39 0.5×	15	558
Cristina Frange Brazil	12	89 0.8×	34 0.3×	56 0.7×	78 1.0×	38 0.5×	32	492
Niklaus Egloff Switzerland	13	228 2.1×	38 0.4×	49 0.6×	226 2.8×	26 0.4×	36	474
Claire E. Goodchild United Kingdom	11	251 2.3×	42 0.4×	59 0.7×	223 2.8×	110 1.5×	12	744
Elyse R. Thakur United States	12	89 0.8×	40 0.4×	93 1.1×	160 2.0×	80 1.1×	29	597
Penelope J. Klein United States	11	56 0.5×	53 0.5×	57 0.7×	187 2.3×	26 0.4×	17	590
Juan F. Sánchez-Romera Spain	14	157 1.4×	67 0.7×	81 1.0×	114 1.4×	46 0.6×	29	673
Dokyoung S. You United States	15	250 2.3×	29 0.3×	169 2.0×	118 1.5×	58 0.8×	48	582

Countries citing papers authored by João P. Machado‐de‐Sousa

Since Specialization

Citations

This map shows the geographic impact of João P. Machado‐de‐Sousa'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 João P. Machado‐de‐Sousa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites João P. Machado‐de‐Sousa more than expected).

Fields of papers citing papers by João P. Machado‐de‐Sousa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by João P. Machado‐de‐Sousa. 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 João P. Machado‐de‐Sousa. The network helps show where João P. Machado‐de‐Sousa may publish in the future.

Co-authorship network of co-authors of João P. Machado‐de‐Sousa

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

All Works

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12 of 12 papers shown

Hallak, Jaime E. C., et al.. (2021). Nitrous oxide as an adjunctive therapy in major depressive disorder: a randomized controlled double-blind pilot trial. Brazilian Journal of Psychiatry. 43(5). 484–493. 27 indexed citations

Maia‐de‐Oliveira, João Paulo, et al.. (2016). Nitric Oxide’s Involvement in the Spectrum of Psychotic Disorders. Current Medicinal Chemistry. 23(24). 2680–2691. 8 indexed citations

Machado‐de‐Sousa, João P., et al.. (2015). UCSD Performance-Based Skills Assessment (UPSA): validation of a Brazilian version in patients with schizophrenia. Schizophrenia Research Cognition. 2(1). 20–25. 10 indexed citations

Chagas, Marcos Hortes Nisihara, et al.. (2015). Structural and functional neuroimaging findings associated with the use of clozapine in schizophrenia: a systematic review. Brazilian Journal of Psychiatry. 37(1). 71–79. 14 indexed citations

Chaves, Cristiano, João Paulo Maia‐de‐Oliveira, Lauro Wichert‐Ana, et al.. (2014). Effects of minocycline add-on treatment on brain morphometry and cerebral perfusion in recent-onset schizophrenia. Schizophrenia Research. 161(2-3). 439–445. 33 indexed citations

Chagas, Marcos Hortes Nisihara, Vítor Tumas, Guilherme Riccioppo Rodrigues, et al.. (2013). Validation and internal consistency of Patient Health Questionnaire-9 for major depression in Parkinson's disease. Age and Ageing. 42(5). 645–649. 47 indexed citations

Crippa, J.A.S., Jaime E. C. Hallak, João P. Machado‐de‐Sousa, et al.. (2012). Cannabidiol for the treatment of cannabis withdrawal syndrome: a case report. Journal of Clinical Pharmacy and Therapeutics. 38(2). 162–164. 71 indexed citations

Chagas, Marcos Hortes Nisihara, José A. Crippa, Sônia Regina Loureiro, et al.. (2011). Validity of the PHQ-2 for the screening of major depression in Parkinson's disease: Two questions and one important answer. Aging & Mental Health. 15(7). 838–843. 28 indexed citations

Meneses-Gaya, Carolina de, Antônio Waldo Zuardi, Sônia Regina Loureiro, et al.. (2010). Is the Full Version of the AUDIT Really Necessary? Study of the Validity and Internal Construct of Its Abbreviated Versions. Alcoholism Clinical and Experimental Research. 34(8). 1417–1424. 145 indexed citations

10.

Cecílio, Flávia Argentato, Simone Cecílio Hallak Regalo, Marcelo Palinkas, et al.. (2010). Ageing and surface EMG activity patterns of masticatory muscles. Journal of Oral Rehabilitation. 37(4). 248–255. 78 indexed citations

11.

Maia‐de‐Oliveira, João Paulo, Joel Porfírio Pinto, João P. Machado‐de‐Sousa, et al.. (2010). A False Case of Clozapine-Resistant Schizophrenia. Case Reports in Medicine. 2010. 1–3. 1 indexed citations

12.

Fusar‐Poli, Paolo, Davide Bruno, João P. Machado‐de‐Sousa, & J.A. Crippa. (2009). Franco Basaglia (1924—1980): Three Decades (1979—2009) as a Bridge Between the Italian and Brazilian Mental Health Reform. International Journal of Social Psychiatry. 57(1). 100–103. 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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