Oliveira Mariana, da-Silva Márcia, Carvalho Lídia, Ribeiro-Carreira A, Pereira Ana Rita, Sampaio Adriana, Coutinho Joana, González-Villar Alberto J
Psychological Neuroscience Laboratory (PNL), Research Center in Psychology (CIPsi), School of Psychology, University of Minho, Braga, Portugal.
Brain Topogr. 2025 Jun 3;38(4):48. doi: 10.1007/s10548-025-01122-1.
Interoception, the process of sensing and interpreting internal bodily signals, plays a crucial role in emotional regulation, decision-making, and overall well-being. This study aimed to investigate the relationship between self-reported interoceptive processes, assessed through the Body Perception Questionnaire (BPQ), and psychophysiological measures of interoception, including cardiac autonomic markers (HF-HRV and RMSSD), cortical processing of cardiac signals (heartbeat-evoked potentials, HEPs), and EEG microstates. We recorded EEG and ECG from 64 healthy volunteers during open-eyed resting state. A positive association was found between the Subdiaphragmatic Reactivity subscale of the BPQ and the coverage of microstate A, a spatial configuration linked to the activation of temporal brain regions, arousal, and sensory processing. No associations were observed between BPQ scores and cardiac measures or HEP amplitudes, suggesting that subjective reports may not align with psychophysiological indices of interoception. Associations were found between HEP amplitudes and microstates A and B, as well as between HRV measures and microstate D, highlighting potential links between autonomic functioning and brain activity during resting state. Although the BPQ is a widely used tool to assess interoceptive sensibility, it may not fully capture the complexity of this construct. These findings provide insight into the complex interplay between self-reported interoception and psychophysiological markers, while emphasizing the need for further research to clarify these relationships and their implications for emotional and cognitive processing.
内感受是指感知和解释身体内部信号的过程，在情绪调节、决策和整体幸福感中起着至关重要的作用。本研究旨在调查通过身体感知问卷（BPQ）评估的自我报告内感受过程与内感受的心理生理测量指标之间的关系，这些指标包括心脏自主神经标志物（高频心率变异性和连续差值平方和）、心脏信号的皮质处理（心跳诱发电位，HEPs）以及脑电图微状态。我们在64名健康志愿者睁眼静息状态下记录了脑电图和心电图。发现BPQ的膈下反应性子量表与微状态A的覆盖率之间存在正相关，微状态A是一种与颞叶脑区激活、唤醒和感觉处理相关的空间配置。未观察到BPQ分数与心脏测量指标或HEPs振幅之间存在关联，这表明主观报告可能与内感受的心理生理指标不一致。发现HEPs振幅与微状态A和B之间存在关联，以及心率变异性测量指标与微状态D之间存在关联，突出了静息状态下自主神经功能与脑活动之间的潜在联系。尽管BPQ是评估内感受敏感性的一种广泛使用的工具，但它可能无法完全捕捉到这一概念的复杂性。这些发现为自我报告的内感受与心理生理标志物之间的复杂相互作用提供了见解，同时强调需要进一步研究以阐明这些关系及其对情绪和认知处理的影响。
