The retrosplenial cortex (RSC) and hippocampus are important regions involved in spatial navigation by integrating vestibular information into spatial representations. Although functional interactions between these regions have been demonstrated, there is currently a lack of evidence regarding the structural connectivity between the RSC and hippocampus in the human brain....
✦ The floor
Discussion
Signed responses from readers of the wire.
No actionable change — this is a basic neuroscience study of healthy brain connectivity with no direct clinical implication for audiologists at this stage.
Better understanding of how vestibular information is integrated in the brain's navigation circuits could inform future rehabilitation strategies for patients with balance and spatial orientation deficits.
- 01Diffusion tensor tractography was used to map white-matter connections between the retrosplenial cortex and hippocampus.
- 02Study focuses on how vestibular (balance) signals are integrated into spatial navigation processing.
- 03Conducted in healthy human participants — no patient population studied.
- 04Published in Brain Research Bulletin; a structural neuroimaging study, not a clinical trial.
- 05Findings are foundational/basic science with no immediate clinical audiology application.
Structural connectivity exists between the retrosplenial cortex and hippocampus in healthy humans, supporting vestibular information integration for spatial navigation.
studypartially supported- PMID
- 42838388
- DOI
- 10.1016/j.brainresbull.2026.112159.
- Journal
- Brain Research Bulletin
- Publication type
- research_article
- Evidence level
- 4
- Population
- Healthy adult humans
- Intervention
- Diffusion tensor tractography imaging of retrosplenial cortex–hippocampus structural connectivity
Primary outcomes
Characterisation of white-matter structural connectivity between retrosplenial cortex and hippocampus; Mapping of pathways involved in vestibular information integration for spatial navigation