HED — Hierarchical Event Descriptors

Overview

HED (Hierarchical Event Descriptors) is a structured annotation system for describing experimental events in neuroscience data. It provides a hierarchical, machine-readable vocabulary allowing researchers to annotate what happened during a recording in a standardised way that supports automated analysis and cross-dataset comparison. HED is integrated into BIDS event files and endorsed by INCF. A clinical extension called SCORE covers seizure and clinical EEG event annotation.

Connections

• Endorsed by: INCF
• Integrated with: BIDS, NWB

Resources

• https://www.hedtags.org
• https://github.com/hed-standard (GitHub organisation)
• https://hed-specification.readthedocs.io (HED specification documentation)
• https://doi.org/10.1038/s41597-021-00988-0 (Robbins et al. 2021, Scientific Data)