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中国科学院研究揭示前额叶-海马环路通过theta振荡支持时间序列信息的在线加工（图）
前额叶 退行性疾病 磁共振成像
2023/10/23
2023年10月17日，《神经科学通报》（Neuroscience Bulletin）在线发表了题为Theta Oscillations Support Prefrontal-hippocampal Interactions in Sequential Working Memory的研究论文。该研究由中国科学院脑科学与智能技术卓越创新中心叶铮研究组与上海交通大学医学院附属瑞金医院占世坤团队合作完成...
2023年10月17日，《Neuroscience Bulletin》在线发表了题为《Theta Oscillations Support Prefrontal-hippocampal Interactions in Sequential Working Memory》的研究论文。该研究由中国科学院脑科学与智能技术卓越创新中心（神经科学研究所）叶铮研究组与上海交通大学医学院附属瑞金医院占世坤团队合...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：On the Turán number of theta graphs
θ图 图兰数 图论
2023/4/26
Turán-type problem may be one of central problems in extremal graph theory. Particularly, the Turán number of a cycle attracts much attention. In this talk, we introduce a terminology, that is, theta ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Special cycles on Shimura varieties and theta series
下村品种 θ系列 特殊循环
2023/5/17
In this talk I will introduce special and generalized cycles on Shimura varieties and discuss how to use them to construct geometric and arithmetic theta series. Then I will briefly discuss the connec...
中国科学院心理研究所心理健康重点实验室王亮研究组最新研究发现，大脑活动的缓慢节律性神经活动-theta振荡在这一过程中起着至关重要的作用。该研究利用人类颅内脑电信号的高时空分辨率特点，揭示了mPFC-EC环路类网格表征的神经振荡特征，及跨脑区协同性，为人类mPFC-EC环路参与空间信息处理提供了直接证据。
中国科学院心理研究所心理健康重点实验室王亮研究组与合作者开展了一项研究，探索恐惧学习的神经机制。通过记录13 名癫痫患者在完成恐惧条件反射任务时的颅内脑电信号 (intracranial EEG) 及皮肤电信号（SCR），探索恐惧学习过程的神经电生理特征及其神经机制。
2020年01月14日，北京生命科学研究所/清华大学生物医学交叉研究院罗敏敏实验室在《Nature Communications》杂志上在线发表题为“Control of Locomotor Speed, Arousal, and Hippocampal Theta Rhythms by the Nucleus Incertus”的文章，揭示了脑干未定核的一类表达神经调节肽（Neuromedin ...
中国科学技术大学高聚物的结构与性能课件 高分子的theta溶液
中国科学技术大学 高聚物的结构 性能 课件 高分子的theta溶液
2019/3/28
中国科学技术大学高聚物的结构与性能课件 高分子的theta溶液。
Theta-band Oscillations in the Middle Temporal Gyrus Reflect Novel Word Consolidation
Theta-band Oscillations in the Middle Temporal Gyrus Reflect Novel Word Consolidation
2018/3/5
Like many other types of memory formation, novel word learning benefits from an offline consolidation period after the initial encoding phase. A previous EEG study has shown that retrieval of novel wo...
Hippocampal-Prefrontal Theta Oscillations Support Memory Integration
Hippocampal-Prefrontal Theta Oscillations Memory Integration
2016/5/3
Integration of separate memories forms the basis of inferential reasoning-an essential cognitive process that enables complex behavior. Considerable evidence suggests that both hippocampus and medial ...
Computing theta functions in quasi-linear time in genus 2 and above
number theory hyperelliptic curves theta functions
2016/2/24
We outline an algorithm to compute θ(z, τ ) in genus 2 in quasi-optimal time, borrowing
ideas from the algorithm for theta constants and the one for θ(z, τ ) in genus 1. Our
implementation shows a l...
Directed Communication between Nucleus Accumbens and Neocortex in Humans Is Differentially Supported by Synchronization in the Theta and Alpha Band
Nucleus Accumbens Neocortex
2015/12/18
Here, we report evidence for oscillatory bi-directional interactions between the nucleus
accumbens and the neocortex in humans. Six patients performed a demanding covert
visual attention task while ...
Changes in Theta and Beta Oscillations as Signatures of Novel Word Consolidation
Theta Beta Oscillations
2015/12/18
The complementary learning systems account of word learning states that novel words, like other types of memories, undergo an offline consolidation process during which they are
gradually integrated ...
DOUBLE THETA POLYNOMIALS AND EQUIVARIANT GIAMBELLI FORMULAS
EQUIVARIANT GIAMBELLI FORMULAS DOUBLE THETA POLYNOMIALS
2015/12/17
We use Young’s raising operators to introduce and study double
theta polynomials, which specialize to both the theta polynomials of Buch,
Kresch, and Tamvakis, and to double (or factorial) Schur S-p...
THE GEOMETRIC THETA CORRESPONDENCE FOR HILBERT MODULAR SURFACES
GEOMETRIC THETA CORRESPONDENCE；HILBERT MODULAR SURFACES
2015/10/14
In a series of papers [11, 12, 13, 14] we have been studying the geometric theta correspondence (see below) for non-compact arithmetic quotients of symmetric spaces associated to orthogonal groups. It...