{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://openvisual.org/schema/derealization/1.0",
  "title": "OVS: Derealization",
  "description": "Visual aspect of derealization: the surroundings look unreal, dream-like, flat or distant — reduced colour and contrast, a closing-in periphery and a subtle sense of changing distance. HPO Derealization (HP:5200218), frequent in VSS. Depersonalization (HP:5200217) has no visual rendering and is recorded via the session `accompanying_symptoms` list.",
  "allOf": [
    {
      "$ref": "https://openvisual.org/schema/symptom-base/1.0"
    },
    {
      "type": "object",
      "properties": {
        "ovs_type": {
          "const": "ovs:derealization"
        }
      }
    }
  ]
}