Horizontal Gaze Nystagmus

URI: https://gptkb.org/entity/Horizontal_Gaze_Nystagmus
GPTKB entity
Statements (27)
Predicate Object
gptkbp:instanceOf field sobriety test
gptkbp:abbreviation gptkb:HGN
gptkbp:admissibleIn gptkb:judge
gptkbp:affects neurological disorders
medical conditions
gptkbp:assesses alcohol impairment
drug impairment
gptkbp:criticizedFor potential for false positives
gptkbp:developedBy gptkb:National_Highway_Traffic_Safety_Administration
https://www.w3.org/2000/01/rdf-schema#label Horizontal Gaze Nystagmus
gptkbp:involves following a stimulus with eyes
gptkbp:language English
gptkbp:measures involuntary eye movement
gptkbp:notableFor distinct nystagmus at maximum deviation
lack of smooth pursuit
onset of nystagmus prior to 45 degrees
gptkbp:observedBy jerking of the eyes
gptkbp:partOf Standardized Field Sobriety Test
gptkbp:performedBy gptkb:police_officer
gptkbp:reliableIndicatorOf blood alcohol concentration above 0.08%
gptkbp:stimulusExample gptkb:cartoonist
finger
gptkbp:usedFor DUI investigation
impairment detection
gptkbp:usedIn gptkb:law_enforcement
gptkbp:bfsParent gptkb:HGN
gptkbp:bfsLayer 7