This report synthesises findings from 14 peer-reviewed papers addressing the following research question: To what extent does incorporating domain-specific metadata into contrastive loss functions improve the robustness of self-supervised representations against distribution shifts in low-resource. 5 claims were extracted from source literature; 5 were independently verified against retrieved documents. An automated multi-reviewer quality assessment produced a score of 7.7/10. This report is a machine-generated literature synthesis and does not constitute original research.Research goal: To what extent does incorporating domain-specific metadata into contrastive loss functions improve the robustness of self-supervised representations against distribution shifts in low-resource settings?Autonomous literature synthesis. Automated review score: 7.7/10. Full text and citation available at Assignee Research.