Search bioRxiv⌕ Search

Biology subjects

Knoben, A.

Publications and source records attributed to Knoben, A..

2 recordsLinked to original sources

Neuroline: an integrated modular pipeline for FAIR multimodal neurophysiology data processing

The adoption of FAIR principles for code and data sharing in systems neuroscience is hindered by the size and diversity of datasets, the multitude of data formats and the complexity of analysis workflows. These challenges have led to the development of various data standards and modality-specific processing and analysis tools. However, it remains difficult to integrate the diverse processed data streams originating from state-of-the-art neurophysiology experiments into a common format, which is crucial for cross-modal analyses and open, FAIR sharing of data. To address this, we developed Neuroline, a Python package for processing neurophysiology data (electrophysiology, optical imaging, and behaviour) that combines multimodal integration, modularity, and standardised output within a single pipeline. It leverages established packages and consolidates the resulting processed data into the standardised Neurodata Without Borders (NWB) format. Neuroline provides a unified interface while preserving flexibility and extensibility. Here we describe the implementation and challenges of a pipeline capable of integrating different types of neuroscientific data and packages. Finally, we address how Neuroline contributes to the sustainability and accessibility of neuroscience data and software.

neuroscience↗

Behavioral arousal organizes visual cortical population micro-states across the sleep-wake cycle

Brain states are conventionally defined as discrete categories, such as wakefulness, NREM sleep and REM sleep. Yet, whether these labels fully capture the organization of cortical population dynamics remains unclear. Using large-field-of-view two-photon calcium imaging of layer II/III pyramidal neurons in mouse primary visual cortex (V1), we show that population activity organizes into recurring micro-states that span conventional sleep-wake boundaries. A Hidden Markov Model fitted independently of behavioral state labels identified temporally stable micro-states with structured transition pathways. Micro-state organization was more strongly aligned with a continuous behavioral arousal axis, indexed by pupil diameter and orofacial motion, than with discrete NREM-wake categories, a relationship confirmed by mediation analysis. At the circuit level, two spatially intermingled but functionally opposing neuronal ensembles tracked this arousal axis in opposite directions. These findings establish behavioral arousal, rather than discrete wake-sleep state, as the primary organizing dimension of V1 population dynamics.

neuroscience↗