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Analysis on international scientific collaboration and research focus on depression field.

Wu Y, Long C, Duan ZG - Chin. Med. J. (2015)

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Affiliation: School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China.

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Depression is one of the most prevalent psychiatric diseases and significantly negatively impacts patients’ productivity, quality of life, and cognitive functions... By examining scientific collaboration, this article also identified hot topics in depression research, which represent the areas of focus that numerous researchers have decided to have substantial potential to prevent and cure this pervasive disease... The analysis of centrality revealed that Harvard University has the highest degree and betweenness centrality and the lowest closeness centrality... The betweeness centrality of the University of Toronto in Canada was third highest and the closeness centrality second highest, but its degree centrality did not appear in the top 10... It also indicated that the University of Toronto had access to lots of research resources and was closely connected to core institutions, but lacked robust communications with other institutions... Similarly, Kings College London in England had a high betweenness and closeness centrality, indicating that it maintained an important position in the network, but its degree centrality did not make the top 10... However, some countries, such as France, had many ties but not many papers, while others, such as Brazil, had many papers but few ties... Finally, we found that the three countries that engaged in international collaboration most frequently – USA, England, and Germany – also have the most number of publications... Using the cluster term and research direction, we identified seven research hotspots... The first research hotspot, diagnosis and assessment, was found in sub-network 0, 2, 3, 8, 9, 12, 13, 14, 15, 16, 19, 20, 25 and 26... Due to the complexity of this disease and the diversity of the patients that it affects, scientific collaboration plays an indispensable role in understanding and treating depression... Thus, this article used SNA to construct and analyze the structure of scientific collaboration in depression research at the levels of authors, institutions, and countries from 2003 to 2012... The neurotransmitters responsible for emotion and mental state, mainly 5-hydroxytryptamine, dopamine, and catecholamine caused insanity when their processes of composition, storage, release, and receptor binding were disrupted... This study laid the foundation for psychopharmacology, leading to neurotransmitters research that has guided the development of new generation psychotropic drugs... Further, identifying research focus within the field can help researchers navigate the forefront of depression research.

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The structure map of the collaboration network among countries on depression research.
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Figure 5: The structure map of the collaboration network among countries on depression research.

Mentions: We chose the 30 most productive countries to construct the collaboration map; each of these 30 countries appeared at least 761 times in the literature. The map [Figure 5] included 30 nodes, and the number of ties represented the collaborative strength among countries. We then selected the 20 nodes with more than 61 ties and included the country name, number of ties, and papers corresponding to these 20 nodes as shown in Table 3. Scientific collaboration was generally positively correlated with the number of papers published. However, some countries, such as France, had many ties but not many papers, while others, such as Brazil, had many papers but few ties. Finally, we found that the three countries that engaged in international collaboration most frequently – USA, England, and Germany – also have the most number of publications. This suggested that to some extent, international scientific collaboration in this field was positively correlated to the degree of productivity. USA held the highest degree of centrality, the highest betweenness centrality, and the lowest closeness centrality. Thus, USA was in the center of the international scientific collaboration network in depression research.


Analysis on international scientific collaboration and research focus on depression field.

Wu Y, Long C, Duan ZG - Chin. Med. J. (2015)

The structure map of the collaboration network among countries on depression research.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4834784&req=5

Figure 5: The structure map of the collaboration network among countries on depression research.
Mentions: We chose the 30 most productive countries to construct the collaboration map; each of these 30 countries appeared at least 761 times in the literature. The map [Figure 5] included 30 nodes, and the number of ties represented the collaborative strength among countries. We then selected the 20 nodes with more than 61 ties and included the country name, number of ties, and papers corresponding to these 20 nodes as shown in Table 3. Scientific collaboration was generally positively correlated with the number of papers published. However, some countries, such as France, had many ties but not many papers, while others, such as Brazil, had many papers but few ties. Finally, we found that the three countries that engaged in international collaboration most frequently – USA, England, and Germany – also have the most number of publications. This suggested that to some extent, international scientific collaboration in this field was positively correlated to the degree of productivity. USA held the highest degree of centrality, the highest betweenness centrality, and the lowest closeness centrality. Thus, USA was in the center of the international scientific collaboration network in depression research.

View Article: PubMed Central - PubMed

Affiliation: School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

Depression is one of the most prevalent psychiatric diseases and significantly negatively impacts patients’ productivity, quality of life, and cognitive functions... By examining scientific collaboration, this article also identified hot topics in depression research, which represent the areas of focus that numerous researchers have decided to have substantial potential to prevent and cure this pervasive disease... The analysis of centrality revealed that Harvard University has the highest degree and betweenness centrality and the lowest closeness centrality... The betweeness centrality of the University of Toronto in Canada was third highest and the closeness centrality second highest, but its degree centrality did not appear in the top 10... It also indicated that the University of Toronto had access to lots of research resources and was closely connected to core institutions, but lacked robust communications with other institutions... Similarly, Kings College London in England had a high betweenness and closeness centrality, indicating that it maintained an important position in the network, but its degree centrality did not make the top 10... However, some countries, such as France, had many ties but not many papers, while others, such as Brazil, had many papers but few ties... Finally, we found that the three countries that engaged in international collaboration most frequently – USA, England, and Germany – also have the most number of publications... Using the cluster term and research direction, we identified seven research hotspots... The first research hotspot, diagnosis and assessment, was found in sub-network 0, 2, 3, 8, 9, 12, 13, 14, 15, 16, 19, 20, 25 and 26... Due to the complexity of this disease and the diversity of the patients that it affects, scientific collaboration plays an indispensable role in understanding and treating depression... Thus, this article used SNA to construct and analyze the structure of scientific collaboration in depression research at the levels of authors, institutions, and countries from 2003 to 2012... The neurotransmitters responsible for emotion and mental state, mainly 5-hydroxytryptamine, dopamine, and catecholamine caused insanity when their processes of composition, storage, release, and receptor binding were disrupted... This study laid the foundation for psychopharmacology, leading to neurotransmitters research that has guided the development of new generation psychotropic drugs... Further, identifying research focus within the field can help researchers navigate the forefront of depression research.

Show MeSH
Related in: MedlinePlus