Comprehensive bibliometric analysis of pharmacotherapy for bipolar disorders: Present trends and future directions

Figure 1 Flow diagram of the literature search and selection.

Figure 2 Analysis based on countries/regions. A: Network visualization of global research collaboration; B: Network visualization of national collaboration; C: Network visualization of author collaboration; D: Network visualization of institutional collaboration. The nodes represent countries, authors, or institutions, with node size indicating the number of publications. The thickness of the connecting lines reflects the strength of collaboration between countries, authors, or institutions. Different colors denote distinct clusters.

Figure 3 Analysis based on journals and research areas. A: The cluster network visualization of the research field uses different colors to represent distinct clusters; B: The citation burst graph highlights periods of intense citation activity, with red segments indicating when citations are in a burst state.

Figure 4 Analysis based on keywords. A: Keywords clustering visualization. The circle and label together form a node, where the size of the circle is directly proportional to the frequency of the keyword’s occurrence. The thickness of the lines connecting the circles reflects the strength of the relationship between the keywords. Nodes of different colors represent distinct clusters; B: Keywords intensity visualization timing overlay. The circle and its label represent a node, with the circle’s size being positively correlated with the frequency of the keyword’s occurrence. The color of each circle is indicated by the gradient in the lower right corner, reflecting the average year of occurrence.

Figure 5 Top 25 keywords with the strongest citation bursts. The keyword burst chart shows periods of high activity, with red indicating when a keyword is in a burst phase.