Interthalamic Adhesion and Cavum Septum Pellucidum in Neuropsychiatric Disorders
Summary
The interthalamic adhesion, or massa intermedia, is a midline grey-matter band connecting the two thalami across the third ventricle. Its presence and morphology vary substantially among individuals and have been tentatively linked to cognitive reserves and resilience following thalamic injury. The cavum septum pellucidum is a cerebrospinal fluid-filled cleft between the leaflets of the septum pellucidum. As a vestigial remnant of embryonic brain development, its persistence or enlargement has been studied as a neurodevelopmental marker in conditions ranging from psychotic disorders to substance dependence. Both structures occupy strategic positions within the limbic circuitry, implicating them in emotional regulation, memory processing and susceptibility to neuropsychiatric illness. Recent advances in high-resolution imaging and volumetric analysis have begun to clarify their prevalence, normative variation and potential role as compensatory or risk factors in diverse clinical populations.
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Interthalamic Adhesion and Cavum Septum Pellucidum in Neuropsychiatric Disorders publication trend
The graph below shows the total number of articles in interthalamic adhesion and cavum septum pellucidum in neuropsychiatric disorders across all publications each year (not limited to Nature Index journals).
Technical terms
Interthalamic adhesion: A variable midline band of grey matter linking the two thalami through the third ventricle.
Cavum septum pellucidum: A cerebrospinal fluid-filled space between the two leaflets of the septum pellucidum, reflecting developmental variation within the limbic system.
Limbic system: A set of interconnected brain structures involved in emotion, memory and behaviour regulation, encompassing the septum pellucidum and thalami.
References
- Exploring the impact of the interthalamic adhesion on human cognition: insights from healthy subjects and thalamic stroke patients. Journal of Neurology (2024).
- Cavum septum pellucidum and first-episode psychosis: A meta-analysis. PLOS ONE (2017).
- Exploring the septum pellucidum: Short review of anatomical insights and the clinical impact of septum pellucidum and cavum septi pellucidi. Translational Research in Anatomy (2024).
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