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Seok-Jun Hong

3 papers in the library · publishing 2023-2026

Papers

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Sub-second fluctuations between top-down and bottom-up modes distinguish diverse human brain states.

Current Biology July 2, 2026 Youngjai Park, Younghwa Cha, Hyoungkyu Kim et al.

Information continuously flows between regions of the human brain, forming patterns that shift across states of consciousness, cognitive modes, and neuropsychiatric conditions. While functional magnetic resonance imaging (fMRI) reveals large-scale activity changes over seconds, the electrophysiological dynamics governing sub-second reconfiguration remain poorly understood. Here, relative phase...

DOI: 10.1016/j.cub.2026.06.014 (opens in new tab) Full text (opens in new tab) ADHD Kuramoto model Cortical traveling waves Coupled-oscillator model +5

Sub-Second Fluctuation between Top-Down and Bottom-Up Modes Distinguishes Diverse Human Brain States.

bioRxiv : the preprint server for biology March 28, 2025 Youngjai Park, Younghwa Cha, Hyoungkyu Kim et al. preprint

Information continuously flows between regions of the human brain, exhibiting distinct patterns that dynamically shift across states of consciousness, cognitive modes, and neuropsychiatric conditions. In this study, we introduce Relative Phase Analysis (RPA), a method that leverages phase-lead/lag relationships to reveal the real-time dynamics of dominant directional patterns and their rapid...

DOI: 10.1101/2025.03.12.642768 (opens in new tab) Full text (opens in new tab) Human brain state Internal-external directionality fluctuation Reletive phase dynamics Sub-second fluctuation

Functional and microstructural plasticity following social and interoceptive mental training.

Elife July 7, 2023 Sofie Louise Valk, Philipp Kanske, Bo-Yong Park et al.

The human brain supports social cognitive functions, including Theory of Mind, empathy, and compassion, through its intrinsic hierarchical organization. However, it remains unclear how the learning and refinement of social skills shapes brain function and structure. We studied if different types of social mental training induce changes in cortical function and microstructure, investigating 332...