7 papers · ranked by Valyu relevance
Ella Wilczynski, Kulam Najmudeen Magdoom, Alexandru V Avram, Nathan H Williamson + 3 more
To demonstrate the feasibility of whole-brain multidimensional T_1_-T_2_ relaxation imaging on a portable 0.064 T MRI scanner. A two-dimensional inversion-recovery, fast spin-echo acquisition was used to jointly encode T_1_ and T_2_ relaxation. Joint relaxation distributions were reconstructed voxel-wise using…
Yumi Shikauchi, Ryuta Aoki, Takashi Itahashi, Masaaki Shimizu + 5 more
Intrinsic neural timescales (INTs) index the temporal decay of neural activity and form a hierarchy from fast sensorimotor to slow transmodal regions. Although altered INTs have been reported in autism spectrum disorder (ASD), it remains unclear whether this hierarchical organization is preserved and how individual…
Rong-jiang Yu, Qiang Lin, Cen Zhong, Yi-Chao Chen + 1 more
All statistical analyses were performed using IBM SPSS Statistics version 25.0 (IBM SPSS Inc., Chicago, IL, USA). The statistical significance threshold was set at p < 0.05, and all tests were two-tailed. Normality of data distribution was assessed using the Shapiro-Wilk test in conjunction with histogram inspection.…
Eliezer Masliah
How transient neural representations become integrated and stable enough to function as internal neural models remains incompletely understood. Grounded in efficient coding, Bayesian and predictive frameworks, recurrent and attractor dynamics, neural state-space models, and systems neuroscience, the Principle of…
Jörn A. Quent, Kaixiang Zhuang, Xinyu Liang, Debin Zeng + 5 more
Detecting novelty is fundamental to adaptive memory, yet the neural comparisons that allow new events to be distinguished from prior experience are not fully understood. Hippocampal novelty signals are often framed as associative comparator responses that register violations of learned relationships. However…
Yao Shen, Ziyang Yu, Qinfeng Zhu, Zhiyong Zhao + 7 more
Bridging the gap between macroscopic neuroimaging and microscopic histology remains a challenge in neuroscience. Here, we present a technical feasibility study of diffusion MR microscopy (dMRM) in the ex vivo human hippocampus using a 14.1 T ultrahigh-field MRI system. Mid-hippocampal blocks from control and…
Saipavitra Murali-Manohar, Helge J. Zöllner, Christopher W. Davies-Jenkins, Aaron T. Gudmundson + 23 more
Developmental trajectories of low-concentration neurometabolites such as the neurotransmitter γ-aminobutyric acid (GABA), and the antioxidants glutathione (GSH) and ascorbate (Asc) across early infancy remain unexplored. Advances in spectral editing enabled the measurement of these key molecules together with…