Comment bien le socialiser?

sanas avoir eu un nom là dessus, oui ce n'est pas la première fois qu'un chiot séparé trop tôt peut avoir des soucis de ce genre

Il est abordé dans la formation Cynopsy, avec plusieurs autres troubles du développement (HS-HA, privation sensorielle, et dépression de détachement précoce)

Des quatre, c'est celui qui a le plus de risque de finir de mauvaise manière  Du fait que ce trouble est très dangereux (le chien n'ayant aucun code, il est susceptible de mordre sans aucun signe avant-coureur) et qu'il a souvent tendance à s'aggraver avec le temps (car le chien s'auto-renforce dans son comportement), l'euthanasie est très souvent préconisée par les vétérinaires.
Et la rééducation très longue, très délicate (il faut non seulement avoir des chiens parfaitement codés et au seuil de réactivité très élevé pour rééduquer le chien "patient", mais aussi s'assurer que les chiens "cobayes" ne risquent pas de se faire blesser), il faut énormément de management de l'environnement pour s'assurer que le chien ne se renforce pas dans son comportement, et le problème ne concerne pas uniquement la communication chien/chien mais aussi chien/humain, donc le risque de morsure sur les humains (y compris les propriétaires) est aussi élevé...
Sans compter que les troubles du développement ne se "guérissent" jamais totalement, une fois que le cerveau a fini de se développer... c'est trop tard j'ai envie de dire (pas réellement en fait, mais il y aura toujours des séquelles), donc en gros c'est un travail de rééducation qui durera la vie du chien

En gros c'est très lourd à supporter pour les proprios au jour le jour =/

la seule chose qui me dérange c'est l'age, j'en connais des séparés tot qui s'en sont bien sortis. mais il est nécessaire qu'il y ai eu au moins un chien adulte qui prenne le relais.

chez le chat aussi ce syndrome existe !

Justement, contrairement à ce qui est dit dans l'article ce n'est pas l'absence de la mère le problème, mais l'absence de contact canin entre 5 et 12 semaines.

Et comme le HS-HA, il y a plusieurs stades de gravité qui feront que ce sera plus facilement récupérable ou pas (un chiot qui n'a reçu absolument aucun contact canin depuis ses 5 semaines, ce n'est pas la même chose que s'il en a manqué "que" à partir de 8 ou 9 semaines)

voilà y a bien un truc un peu imprécis !

Merci pour les réponses.

https://hund.fr/actualites/qui-promener-avec-qui/151/?fbclid=IwAR0HFf1Oadn54XeQ5bRfCxRQGbEbsXIzLXXRFQtBBBADq8r9a6Fb89_L1wE

Citation :

Different Dog Breeds, Different Sensitive Period?
- April 29, 2015

A study of three breeds finds differences in the sensitive period, and shows socialization should begin before you even take your puppy home.

By Zazie Todd, PhD

Puppies have a sensitive period between 3 and 12-14 weeks old in which they must be socialized. This means positive introductions to new people, dogs, places, etc. If not, they will be fearful as adult dogs. A fascinating new study by Mary Morrow (Ohio State University) et al investigates whether this period is the same for three breeds of dog: Cavalier King Charles Spaniels, Yorkshire Terriers, and German Shepherd Dogs.

These breeds make a particularly interesting comparison. The Cavalier King Charles Spaniel and Yorkshire Terrier are both members of the Toy group, although Yorkshire Terriers are still “terriers by nature” according to the breed standard. The German Shepherd is a Herding dog, and the GSD puppies were chosen from breeders with international working dog lines.

The results show that Yorkshire Terriers and German Shepherd Dogs have an earlier onset to the sensitive period. This means socialization needs to start in the home of the breeder (or the foster for rescue pups). People are increasingly aware of the importance of socializing puppies when they get them. But before committing to a new pup they should ask the breeder: “What are you doing to begin socialization before I take the puppy home?”

Dr. Joy Pate (Penn State University), one of the authors, says “Socialization is clearly important for all breeds of dog. What our study shows, is that timing of exposure to novelty is not only important, but varies by breed. In breeds with earlier onset of adult patterns of fear-related avoidance behavior (the GSDs and YTs in our study), it is critical that they be exposed to novel experiences earlier than some other breeds. In the case of these two breeds, this means by about 40 days, which is before they have left the breeder.”

“Therefore, development of a confident, emotionally competent animal depends not only on the new owner and trainer, but on the environment of the breeder. Although this is important for all breeds, for those with earlier onset of fear-related behaviors, there is a shorter window to provide necessary stimulation and exposure to novelty.”

She goes on to say, “We think that the important message here is that, while exposure to novelty and 'socialization' are necessary for development of stable adults of all breeds, the timing of this critical window is breed-dependent.”

Fear-related avoidance behaviour began at 39.4 days (±1.6) for the German Shepherd, 43.6 (±2.48) for the Yorkshire Terrier, and 54.8 days (±2.74) for the Cavalier King Charles Spaniels.

One potential explanation for the results has to do with neoteny (child- or baby-like features). Of these three breeds, the CKCS is the most neotenous whereas the GSD is closer in appearance to the wolf.

In their paper, the scientists say, “Just as dogs and domesticated foxes have longer critical socialization periods than wolves and non-selected foxes respectively, perhaps more neotenous breeds of dog such as the Cavalier King Charles Spaniel would also have a longer socialization period.” Further research with more breeds would be needed to confirm this.

Puppies were tested once a week from the age of 4-5 weeks until 10 weeks (or until they went home, if earlier). There were four behavioural tests. The control group puppies experienced the same thing but without the actual test. For example, they were placed in location for the noise test for the same amount of time as the test puppies, but did not experience the loud noise.

Testing took place close to but out of sight and sound of the other puppies in the litter. There were four tests each week: a novel item, being placed on a seesaw, hearing a sudden loud noise, and being put on a step so they would feel like they were on a ledge. The novel item was a toy duck that walked whilst making a noise and shining light from its eyes.

In early testing the puppies did not show fear. For example, in the novel item test, a 31-day-old Yorkshire Terrier puppy stays still while the toy duck marches right up to her. At 38 days, the video shows her back away from the approaching duck and then run to hide behind the human’s legs.

The age of onset of the fear period in GSDs is similar to that found by Ray Coppinger  in earlier work. There were differences between the three breeds in the proportion of puppies that responded fearfully. From 6 weeks old, there were also differences in mobility. Most of the Cavalier King Charles Spaniels did not begin testing until 5 weeks old because they did not respond at 4 weeks. The breeders said that CKCS develop later and open their eyes later than other breeds.

Saliva was also collected from the puppies and tested for cortisol, although only the GSDs and CKC Spaniels took part in this because of difficulties getting samples from the Yorkshire Terriers. Cortisol could be detected in the saliva from 4 weeks old. Among the Cavalier King Charles Spaniel puppies, changes in cortisol from before to after the test were greatest amongst the puppies that had a fear response.

98 puppies took part in the study (33 Cavalier King Charles Spaniels from 7 litters, 33 German Shepherd Dogs from 5 litters, and 32 Yorkshire Terriers from 9 litters). Eleven breeders participated and the puppies were tested at their homes. Among each breed, 14 puppies were controls and the remainder took part in the experimental condition.

This study provides important confirmation that breed differences in the sensitive period exist. Although we still have much to learn about socialization, the implication is very clear – it needs to start early. Unfortunately, many puppies miss out on important socialization opportunities.


Zazie Todd, PhD, is the author of Wag: The Science of Making Your Dog Happy. She is the founder of the popular blog Companion Animal Psychology, where she writes about everything from training methods to the human-canine relationship. She also writes a column for Psychology Today and has received the prestigious Captain Haggerty Award for Best Training Article in 2017. Todd lives in Maple Ridge, BC, with her husband and two cats.

https://www.companionanimalpsychology.com/2015/04/different-dog-breeds-different.html