通过脑电与眼动数据,定位深度专注时最活跃的脑区和神经节律。
Gamma2Patterns: Deep Cognitive Attention Region Identification and Gamma-Alpha Pattern Analysis
- 融合伽马与阿尔法脑电及眼动信号,识别深度注意力状态。
- 前极、颞叶、顶枕区伽马功率与爆发率最高,主导专注状态。
- 伽马活动比阿尔法更有效区分专注与不专注,适合用于注意力解码。
深度认知注意力以增强的伽马振荡和协调的视觉行为为特征。尽管这些机制具有重要的生理意义,但计算研究很少整合多模态数据或识别维持专注的核心脑区。为此,本文提出Gamma2Patterns框架,结合伽马与阿尔法频段脑电活动及眼动追踪数据,分析深度注意力。基于SEED-IV数据集,对62个通道的谱功率、爆发性时间动态以及注视-扫视-瞳孔信号进行分析,比较高专注(伽马主导)与低专注(阿尔法主导)状态。结果表明,前极、颞叶、前额叶及顶枕区伽马功率与爆发频率最高,是深度注意力的主要贡献区域;眼动信号进一步证实额叶、前极及额颞区的协同作用。此外,伽马功率与爆发持续时间比阿尔法功率更具判别力,显著提升注意力状态识别能力。本研究构建了多模态证据支持的皮层区域与振荡特征图谱,为未来类脑注意力机制提供神经生理基础。
原文摘要 · Abstract (English)
Deep cognitive attention is characterized by heightened gamma oscillations and coordinated visual behavior. Despite the physiological importance of these mechanisms, computational studies rarely synthesize these modalities or identify the neural regions most responsible for sustained focus. To address this gap, this work introduces Gamma2Patterns, a multimodal framework that characterizes deep cognitive attention by leveraging complementary Gamma and Alpha band EEG activity alongside Eye-tracking measurements. Using the SEED-IV dataset [1], we extract spectral power, burst-based temporal dynamics, and fixation-saccade-pupil signals across 62 channels or electrodes to analyze how neural activation differs between high-focus (Gamma-dominant) and low-focus (Alpha-dominant) states. Our findings reveal that frontopolar, temporal, anterior frontal, and parieto-occipital regions exhibit the strongest Gamma power and burst rates, indicating their dominant role in deep attentional engagement, while Eye-tracking signals confirm complementary contributions from frontal, frontopolar, and frontotemporal regions. Furthermore, we show that Gamma power and burst duration provide more discriminative markers of deep focus than Alpha power alone, demonstrating their value for attention decoding. Collectively, these results establish a multimodal, evidence-based map of cortical regions and oscillatory signatures underlying deep focus, providing a neurophysiological foundation for future brain-inspired attention mechanisms in AI systems.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。