When a conference makes the whole field feel connected
June 12, 2026
Reflections from The Neurobiology of Mental Health meeting at Lake Thun, Switzerland.
Some scientific meetings are valuable because of one exceptional lecture. Others are valuable because they bring together a community. The Lake Conference on the Neurobiology of Mental Health felt distinctive for a different reason: the speaker line-up, the breadth of the science, and the intimate setting made the field feel connected.
Developmental neurobiology, psychiatric genetics, single-cell genomics, brain circuits, stem-cell models, neuroimaging, therapeutic development and drug delivery were not placed in separate intellectual boxes. They appeared as parts of the same problem: how do we move from genes and cells to brain systems, behaviour, illness and, eventually, intervention?
The power of a coherent programme
I had heard several of these established researchers speak before, including at large meetings such as the American Society of Human Genetics. But hearing their work arranged within a coherent sequence was a very different experience. Each session had its own scientific identity, yet the transitions made connections visible that are easy to miss when talks are encountered individually.
The programme moved from human brain development and cell-type atlases to autism genetics, white matter, organoids, neural circuits and therapeutic translation. Each session was internally cohesive, but no two sessions felt repetitive. The cumulative effect was not simply “many excellent talks.” It felt as though the frontiers of several fields were being pushed in parallel—and occasionally beginning to meet.
Talks closest to my own scientific questions
Tomasz Nowakowski’s presentation was especially relevant to my interests. His work connected human brain development, autism, single-cell and epigenomic profiling, cortical and subcortical structures, and genetically defined forms of neurodevelopmental disorders. I was particularly struck by the effort to identify points of convergence without erasing biological heterogeneity: molecular differences varied across brain regions, cell classes and genetic subgroups, and some signals tracked clinically meaningful features such as verbal and non-verbal status.
Genevieve Konopka’s talk on cellular-resolution multi-omics of white-matter tracts in autism also stayed with me. Much of psychiatric transcriptomics has concentrated on cortical grey matter. Her focus on oligodendrocytes, microglia and anatomically distinct white-matter pathways opened a complementary view. As someone who studies how genomic variation maps onto brain structure, it was exciting to see white matter treated not as a single background tissue, but as a collection of cellularly and anatomically distinct systems.
Hongkui Zeng’s presentation from the Allen Institute showed the extraordinary scale of modern brain-cell atlasing: thousands of transcriptomic cell types, spatial organization, development, ageing, behavioural states and cross-species integration. The ambition was larger than constructing a catalogue. The goal was to bridge cell types and brain function across species, modalities, time, space and disease. These resources are becoming foundational for researchers like me who begin with population-scale genetics or neuroimaging and need principled ways to move toward cells and mechanisms.
Daniel Geschwind’s presentation on translating the autism genome through high-throughput iPSC phenotyping and genomics brought another part of the bridge into view. Psychiatric genetics has become increasingly successful at identifying risk genes. The harder task is learning what those genes do in relevant human cellular systems, where they converge, and which effects might be therapeutically actionable. His talk made that translational path feel ambitious, but increasingly concrete.
The talks that felt almost like science fiction
Christopher Walsh’s talk on somatic mosaicism during early brain development was one of those lectures that makes biology seem stranger and more inventive than fiction. I had heard him speak before, but the story remained extraordinary: the brain is not necessarily genetically uniform, and mutations arising during development can create spatially and developmentally structured mosaics with consequences for neuropsychiatric disease. It changes the way one thinks about the genome of an individual—and even about what is meant by “the” genome of a brain.
Sergiu Pașca’s work on constructing and deconstructing the human nervous system was inspiring for a different reason. Organoids and assembloids are beginning to make previously inaccessible stages and interactions experimentally tractable. These models do not replace the complexity of a living human brain, but they create a space in which developmental mechanisms, disease-associated genes and cellular interactions can be tested rather than only inferred.
Stephan Sanders then carried the discussion from genes to neurobiology and genetic medicines. The emphasis on translation was important: gene discovery is not the endpoint. The challenge is to determine which biological consequences are reversible, when intervention is possible, and how a molecular insight can become a meaningful treatment. Fatih Yanik’s presentation on non-invasive, focal drug and RNA delivery pushed that idea even further. The possibility of directing molecules to a specific brain location without conventionally opening the blood–brain barrier felt genuinely frontier-setting.
Why the setting mattered
The science was exceptional, but the setting changed how the science was experienced. A relatively small meeting, shared meals, poster sessions and the closed quarters of the Seepark venue created repeated opportunities for conversation. Speakers did not disappear immediately after their sessions. Questions could continue over coffee, dinner or beside a poster.
That matters particularly at an interdisciplinary conference. A geneticist, a circuit neuroscientist, a stem-cell biologist and a neuroimaging researcher may use different methods and even different scientific languages. Informal interactions make it easier to ask basic questions, discover shared problems and see where one field’s resource could become another field’s missing layer.
Leaving with a more connected view
My strongest impression was not tied to any single result. It was the experience of watching multiple levels of neuroscience placed into conversation: somatic mutations and inherited variation; gene-regulatory networks and cell states; cortical development and white-matter systems; mouse models and human organoids; brain atlases and clinical translation.
I left with many specific ideas relevant to my own work, especially about how neuroimaging-genetic findings might be anchored to developmental cell states, white-matter biology, perturbation models and cross-species atlases. But I also left with something broader: a renewed sense that progress in mental-health research will depend on connecting levels of explanation that have too often developed separately.
For several days by the lake, those levels felt unusually close together. That is what made the meeting memorable—and what made it feel as though my neurons were firing the entire time.
These are personal reflections from the meeting rather than a comprehensive summary of the programme.