HED specification

Links

• PDF released version (V3.0.0)

• PDF working version

• Specification source

• HED resources

• HED project homepage

Contents:

• 1. Introduction to HED
  • 1.1. Scope of HED
  • 1.2. Brief history of HED
  • 1.2. Goals of HED
  • 1.3. HED design principles
  • 1.4. Specification organization
• 2. HED terminology
  • Agent [*]
  • Condition-variable [*]
  • Control-variable [*]
  • Dataset
  • Event [*]
  • Event-context [*]
  • Event marker
  • Event-stream [*]
  • Experiment-participant [*]
  • Experimental-trial [*]
  • HED schema [*]
  • HED string
  • HED tag
  • Indicator-variable [*]
  • Parameter [*]
  • Recording [*]
  • Tag-group
  • Task [*]
  • Temporal scope
  • Time-block [*]
• 3. The HED schema
  • 3.1. Mediawiki schema format
  • 3.2. XML schema format
    • 3.2.1 The <node> element
    • 3.2.2 Unit classes and modifiers
    • 3.2.3 Value classes
    • 3.2.4 Schema attributes
    • 3.2.5 Schema properties
  • 3.3. Allowed names and values
    • 3.3.1 Rules for the HED schema
    • 3.3.2 Rules for HED tags
    • 3.3.3 Placeholders in HED tags
  • 3.4. Vocabulary organization
  • 3.5. Tag syntax
• 4. Basic annotation
  • 4.1. Instantaneous events
  • 4.2. Sensory presentations
  • 4.3. Task role
  • 4.4. Agent actions
  • 4.5. Experimental control
  • 4.6. Data features
  • 4.7. What else?
• 5. Advanced annotation
  • 5.1. HED definitions
  • 5.2. Using definitions
  • 5.3. Temporal scope
    • 5.3.1. Onset and Offset
    • 5.3.2. Duration
    • 5.3.3. Temporal offsets with Delay
  • 5.4. Event streams
  • 5.5. Event context
  • 5.6. Experimental design
  • 5.7. Specialized annotation
• 6. Infrastructure
  • 6.1. Short and long forms
  • 6.2. File formats
    • 6.2.1. BIDS event files
    • 6.2.2. BIDS sidecars
    • 6.2.3. HED version in BIDS
  • 6.3. Levels of validation
    • 6.3.1. Tag validation
    • 6.3.2. String validation
    • 6.3.3. Sidecar validation
    • 6.3.4. Event validation
    • 6.3.5. Recording validation
  • 6.4. Analysis tools
  • 6.5. BIDS support in HED
• 7. Library schema
  • 7.1. Defining a schema
  • 7.2. Schema namespaces
  • 7.3. Attributes and classes
    • 7.3.1. Required sections
    • 7.3.2. Relation to standard HED schema
    • 7.3.3. Schema properties
    • 7.3.4. Unit classes
    • 7.3.5. Value classes
    • 7.3.6. Schema attributes
    • 7.3.7. Syntax checking
  • 7.4. library schemas in BIDS
• A. Schema format
  • A.1. Mediawiki file format
    • A.1.1. Overall file layout
    • A.1.2. The header-line
    • A.1.3. Schema section
    • A.1.4. Other sections
  • A.2. XML file format
    • A.2.1. The schema section
    • A.2.2. Unit classes
    • A.2.3. Value classes
    • A.2.4. Schema attributes
  • A.3. Schema sections
    • A.3.1. Schema properties
    • A.3.2. Schema attributes
    • A.3.3. Value classes
    • A.3.4. HED unit classes
    • A.3.5. HED unit modifiers
• B. HED errors
  • B.1. HED validation errors
  • B.2. Schema validation errors
    • B.2.2. General validation schema errors
    • B.2.3. Format-specific schema errors.
    • B.3. Schema loading errors

Indices and tables

• Index

• Module Index

• Search Page