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Excitons, the correlated electron-hole pairs governing optical and transport properties in organic semiconductors, have long resisted direct experimental access to their full quantum-mechanical wave functions. Here, we use femtosecond time-resolved photoemission orbital tomography (trPOT), combining high-harmonic probe pulses with time- and momentum-resolved photoelectron spectroscopy, to directly image the momentum-space distribution and ultrafast dynamics of excitons in $α$-sexithiophene thin films. [...]

BigBrain2 is a second BigBrain dataset that complements and builds on our expertise from the first BigBrain [1], providing new insights into variations between brains at whole-brain and cytoarchitectonic level. The brain (30-year-old male donor) was formalin-fixed, paraffin-embedded, and sectioned coronally (20 μm) into 7676 sections [...]

We will be live again at go.fzj.de/BigBrainWorkshop2025_lecture_hallat Tuesday, Oct 28, 9:00 CET You are cordially invited to attend the 9th BigBrain Workshop, taking place in Berlin, Germany, on October 28 and 29, 2025.This workshop has established itself as the annual meeting place for the BigBrain community to come together and present their latest research, discuss prospects of the BigBrain associated data and tools, and brainstorm on how to leverage high-performance computing and artificial intelligence better to create multimodal, multiresolution tools for the high-resolution BigBrain and related datasets.The BigBrain Workshop will be held in conjunction with a Training Day, taking place as a full-day event on October 27, on-site at the conference venue. <br><br>This year’s workshop also serves as the Closing Symposium of the Helmholtz International BigBrain Analytics and Learning Lab (HIBALL), highlighting the remarkable achievements of this transatlantic collaboration. [...]

Recent advances in imaging technologies—particularly high-throughput methods—have led to an unprecedented growth of image datasets, reaching Terabytes to Petabytes in scale. While such massive datasets offer transformative potential for scientific discovery, they also introduce significant challenges for visualization and analysis due to the sheer size of the data and its continuous growth [...]

<b>INTRODUCTION/MOTIVATION</b><br>The hypothalamus is crucial for maintaining homeostasis, regulating sleep-wake cycles, appetite, circadian rhythm, and thermal regulation [1]. Despite its importance, its structural organization, precise boundaries, and functional differentiation of nuclei remain incompletely understood [...]

<b>Introduction</b><br>Broca’s region plays a key role in language and action processing, yet its classical subdivision intoareas 44 and 45 does not fully capture its functional heterogeneity. Existing anatomical maps oftenlack sufficient granularity and do not adequately reflect interindividual variability [...]

<b>INTRODUCTION/MOTIVATION</b><br>Brain atlases underpin many branches of neuroscience by providing a spatial scaffold on whichmultimodal data can be organised and compared. Yet atlas resources are often released as projectspecific archives differing in structure, coordinate space, parcellation logic, and nomenclature [...]