Striato-limbic and frontoparietal dysfunction underlying imbalance of reward-motivation and cognitive control in compulsive sexual behaviour disorder: A neuroimaging meta-analysis
Abstract
Background: Compulsive sexual behavior disorder (CSBD) involves uncontrollable sexual urges and behaviors that cause distress or functional impairment. Although classified as an impulse control disorder in ICD-11, its neurobiological basis and cognitive deficits remain poorly understood. Advances in large language models (LLMs) enable scalable literature parsing and multimodal neuroimaging synthesis. This study applied an LLM-based framework for coordinate-based meta-analysis and functional decoding to generate a brain-cognition mapping of CSBD that links neurobiological alterations with cognitive dysfunctions.
Methods: Relevant structural and functional neuroimaging studies of CSBD were identified through semantic screening in Neurosynth Compose. Coordinates were extracted and synthesized using Multi-level Kernel Density Analysis (MKDA-χ2), with subgroup analyses conducted by study characteristics. The resulting brain maps were then functionally annotated in NeuroVault to identify associated cognitive, emotional, motivational, and behavioral dimensions.
Results: Meta-analysis revealed consistent abnormalities in the left hippocampus, inferior parietal lobule, precentral gyrus, putamen, and angular gyrus, and in the right globus pallidus and supramarginal gyrus. Task-based studies mainly implicated the inferior parietal lobule, hippocampus, and globus pallidus, whereas resting-state studies indicated cerebellar involvement. In European samples, abnormalities appeared in the…
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