originally regarded as stereotypies may start as ...flank sucking, blanket sucking, pica ›...
TRANSCRIPT
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Originally regarded as stereotypies May start as displacement behavior Exhibited by captive animals in suboptimal
environments (e.g. zoo)
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HUMBLE BEGINNINGS – HORSE WORK WITH MORPHINE
“Pacing”
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KNIGHTLY NIGHT
“DIGGING”
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MOBEY
“CRIBBING”
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The same strategy worked! Results published
Use of narcotic antagonists to modify stereotypic self-licking, self-chewing, and scratching behavior in dogs. Dodman NH, et al. JAVMA. 1988 9
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1992 publication by child psychiatrist Dr Judith Rapoport
Dogs with ALD respond the same way as human OCD sufferers to anti-compulsive medications
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Common compulsive behaviors & their origin › Acral lick dermatitis (ALD) – grooming
› Flank or blanket sucking – suckling
› Tail chasing – predatory behavior
› Circling, running geometric patterns - predatory
› Light/shadow chasing - predatory
› Fly snapping - predatory
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Flank sucking, blanket sucking, pica
› Doberman pinschers (plus Weimaraners and Dachshunds)
› Related to suckling
› Repetitive mouthing and sucking of flank region (or blanket)
› Injuries and intestinal obstruction can result from ingestion of foreign material
Moon-Fanelli AA, Dodman NH, Cottam N. Blanket and flank sucking in Doberman Pinschers. J Am Vet Med Assoc 2007
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CCD dogs exhibited higher total brain and gray matter volumes Lower dorsal ACC and right anterior insula gray matter densities. Higher fractional anisotropy in the splenium of the corpus callosum, the degree of which correlated with the severity of the behavioral phenotype.
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92 affected 68 controls GWAS (Affymetirx
canine snp array) Analyzed using PLINK
Fine-mapping using 84 SNPs across the chromosome 7 peak was performed
Highly significant association of CCD with the CDH2 region on chromosome 7 is the first genetic locus identified for any animal compulsive disorder
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Tail chasing › Mainly terriers and herding breeds
› Dogs may vocalize excessively and injure themselves
› Dogs may become aggressive if restrained
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VALENTINE
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333 Bull Terriers (145 affected; 188 control)
Tail chasing trance-like behavior and
sometimes explosive aggression
Males at a significantly greater risk of tail chasing
Phobias and owner-directed
aggression had significant associations
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Are often socially withdrawn Tantrums/aggression/self-biting Inattention/hyperactivity Obsession with objects Spinning, hand flapping Sensitivity to noise Various phobias
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Affected: n = 45 Unaffected n = 42.
Withdrawn/non-interactive around people. Chi square 0.033
Object preoccupation. Chi square 0.0001
Noise sensitivity. Chi square 0.002
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Neurotensin elevated CRH elevated
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Light/shadow chasing › Wire-haired Fox Terriers, Old English Sheepdogs, Schnauzers,
Rottweilers, Golden Retrievers, Border Collies
› Displaced predatory behavior
› May be initiated/reinforced by laser pointer or flashlight
› Tends not cause injuries
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BT gene genetic
sequencing New studies: a) Tail chasing GSDs b) Light chasing Border collies
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Fly Snapping › Cavalier King Charles spaniels, Dobermans, Bernese Mountain
dogs, springer spaniels, Labrador retrievers, German shepherds, Norfolk and Norwich terriers
› Displaced predatory behavior
› Staring at “invisible insects,” snapping at the air, head shaking, licking, scratching
› Can be very frustrating
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› Rock chewing, ball playing, stick
playing, food bowl fetish › Compulsive Swimming › Digging OCD
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Avoid stressors
Fixed daily schedule
Increase exercise
Environmental enrichment
Get the dog a job!
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Dogs need a job!
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Fluoxetine
A serotonin reuptake blocker
Namenda
A glutamate blocker
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Some respond better than others
Depends on severity and owner commitment
Early treatment results in better outcome
Can be good
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Derive from natural
behaviors Take the form of:
› Eating - wool sucking › Grooming – psychogenic
alopecia › Grooming/aggression -
feline hyperesthesia
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Sucking and chewing of woolen, cotton, synthetic substrates
May progress to pica (plastic, shoe laces, electric cords, paper)
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Nuisance value
Expense
Health issues (intestinal obstruction)
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Oriental breeds most susceptible › Siamese cats
account for 50% of affected population
Genetic factors: more anxious temperament
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› Early weaning
› Orphaning › Stress
› Indoor-only lifestyle
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Displacement
grooming
Grooming “gone awry” › “Feline
trichotillomania”
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Maladaptive grooming performed out of normal context
Grooming is repetitive and excessive in frequency and intensity
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Symptoms › Hair shafts sheared › Alopecia › Hair loss only on body areas
accessible to cat Abdomen, flank, legs, chest,
back
Other diagnostic signs › Onset associated with
stressful situation › Concurrent anxious
behaviors (hiding, anorexia, nervousness)
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More common in females
Occurs around puberty
Indoor only cats
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Frenetic self-grooming along the spine/tail
Widely dilated pupils
Skin rippling
Hyperesthetic
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Age – onset 2-6 years
Onset associated with stressor
Affects oriental breeds (Siamese, Burmese, Singapora, Oriental crosses)
Indoor only cats
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Treat co-existing medical problems (esp.
dermatological conditions)
Alleviate stress To resolve intercat issues To treat separation anxiety Environmental enrichment
Drug treatments
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Environmental enrichment › Play and treat balls, Deli Dome › Cat grass › Exercise (prey facsimiles,
rotate toys, walks) › Clicker training › Climbing frames › Bird feeders, fish tanks, cat
videos › Outdoor enclosures
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OCDs exist across the spectrum of animal species
Genetic factors underlie their expression Anxious personality (A1) is one factor Environmental conflict triggers OCD Self injury can result Treatments are reasonably effective
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https://www.amazon.com/Pets-Couch-Neurotic-Compulsive-Psychiatry/dp/1476749027
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