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SHIRPA Observations in Viewing Jar
Body Position
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Active Inactive Excessive Activity
Coat Appearance
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Tidy - well groomed Irregularities (piloerect, etc)
Defecation
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Head Bobbing
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Head Flicking
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Lacrimation
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Palpebral Closure
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Tremor
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Whiskers
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
FOB Arousal
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Normal (alert, exploratory bhvr) Very high (hyperalert, excited, sudden mvmts) Somewhat High (slight excitement, tense, darting) Low (some hd and body mvmt) Somewhat low (some exploration with immobility ) Very low (coma, stupor)
SHIRPA Behavior Recorded in Arena
Gait
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Fluid ~ 3mm pelvic elevation Lack of fluidity
Startle Response (from FOB)
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Freezes or whole body startle No reaction Exaggerated (jumps, bites, attacks) Slight reactions (evidence noise was heard) Moderate reaction
Tail Elevation
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Horizontal extension Dragging Elevated/straub tail
Touch Escape
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Flees prior to touch Response to touch No response
Transfer Arousal
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Brief freeze (2-5 sec) then movement Extended Freeze (over 5 sec) Immediate movement (< 1 sec freeze)
FOB Clonic Movements
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Normal Myoclonic jerks Repetitive mvmts of mouth and jaws Severe or whole body tremors Clonic convulsions Quivers of limbs, ears, head or skin Mild tremors wet dog shakes
FOB Gait
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Normal Hind limbs (drag, or splayed) Forelimbs drag, extended, not supporting Hunched or crouched body position Ataxia (Excessive sway, rocks or lurches) Feet markedly point outward Walks on tiptoes Body drags or flattened on surface
FOB Tonic Movements
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Normal Opisthotonos (hd & body rigidly arched back) Explosive jumps Contractions of extensors (limbs rigid) Emprosthotonos (hd & body rigidly extended fwd Severe clonic &/or tonic convulsions
SHIRPA Observations above Arena
Positional Passivity
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Tail - Struggles Neck - Struggles No struggle Supine - Struggles
Skin Color
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Pink Blanched Bright deep red flush
Tail Suspension (20 sec)
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Normal splay of limbs Turns up sides Grabs contralateral leg Forepaw clutch Grabs ipsilateral leg Hindpaw clutch Other responses
Trunk Curl
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
SHIRPA Reflexes
Corneal Reflex (tail restrain)
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Pinna Reflex (do not restrain)
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Other SHIRPA Tests
Biting
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Contact Righting Reflex
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Vocalization
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Geotaxis and Strength
Hanging Wire Grid Test (60 sec)
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
> 1 min Invalid 0 to 30s Falls immediately 30s to 1 min
Vertical Screen Test (20 sec)
HET
HOM
WT Littermate
WT Pop
0%
20%
40%
60%
80%
100%
Climbs to the top of the screen in 20 sec Turns upward, does not climb to top Falls; or remains on the bottom of the screen upside down Climbs past middle in 20 sec