Mapping Suicide Research within the RDoC Framework
Figure 2. Data visualization sketch illustrating connection between specific Research Domain Criteria (RDoC) constructs and suicide outcomes (SITB DV: suicide ideation, attempt, death).
This figure displays 100 individual study findings examining similar RDoC elements (i.e., hopelessness in the Negative Valence Systems domain, impulsiveness under Cognitive Systems, sleep problems under Arousal & Regulatory Systems, burdensomeness and belongingness under Social Processes) so summarization across multiple studies can be visualized. Each line in the visualization represents an individual RDoC element-suicide outcome finding. On the "Total Effect Sizes" tab, the number of effect sizes linking an RDoC element to a suicide outcome are displayed (by hovering over the lines of interest). On the "Average Effect Size" tab, the total magnitude of these associations is displayed (by hovering over the lines of interest).
This basic version of the data visualization using a subset of the project's data indicates that many studies have examined these risk factors in relation to suicide ideation but much fewer have been examined in relation to suicide death. With the full-scale, interactive version of this visualization, viewers will be able to zoom in to examine specific associations (e.g., hopelessness and suicide ideation) as well as hover over each line to see details about individual studies summarized within a category. The data visualization initiative is a powerful way to help researchers and policymakers quickly identify trends and gaps in the suicide literature and to generate hypotheses to facilitate their respective research initiatives within the RDoC framework.