As requested I'm copying a post from another thread here. I had planned on expanding on these points but also writing more about other critical periods in a puppy's development before starting this thread. While I have started gathering and sorting my notes, I will not be moving on this as fast as I would have liked since some personal stuff has come up and so will add more in the coming days and months.
Since I have also found that I really enjoyed revisiting my study notes and recalling some of the case histories of both dogs that I have worked with and also remembering case histories that my lecturers and mentors talked about, I will also in the coming months where time allows, write more about other training and dog behavioural subjects in this forum.
In the first picture below, and much earlier in training than her current age, you can see my dog while other wise complying to everything asked of her by way of both position and focus is leaning her head away from my left hand. It was initially a lot of work for her to actually return back to the close heel position.
The second picture shows me holding my left hand away from her and that is how we continued our training when it seemed that she was happier to bring her head closer to my side when I made this adjustment. However in this picture, the position that she is holding her ears in indicates that, while she is complying, she is not entirely confident that she is safe
Since I have also found that I really enjoyed revisiting my study notes and recalling some of the case histories of both dogs that I have worked with and also remembering case histories that my lecturers and mentors talked about, I will also in the coming months where time allows, write more about other training and dog behavioural subjects in this forum.
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A dog has a number of what are referred to as 'critical fear' periods during it's development. My lecturer at the time suggested that the natural purpose of the fear periods were to give the dog an edge of suspicion or caution. Apparently, and we were given a few examples, any learning that takes place in relation to fearful triggers can be permanent, but if not, it can take a higher degree of work to desensitise the dog to its fear triggers.
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One interesting thing that was noted is that the resultant behavioural or emotional responses to intense fear or trauma during a critical fear period may not actually show up until after sexual or mental maturity. To the dog owner, it often seems that the behaviour/reaction come out of nowhere but often a detailed case history with attention to the critical fear periods will lead to uncovering how the behaviour was developed and a clue to what the triggering stimulus is for the current behaviour/emotional response.
One case history we discussed was of a dog that developed what seemed like random human aggression. It was difficult to pin down what was common between those that he reacted to and those he didn't. It turned out that it was the smell of pizza! The dog had had a frightening experience with pizza delivery guy in the dark during a critical fear period, and since dogs have a greater sense of smell, he could react to people who had eaten pizza up to 24hrs prior.
The major critical fear periods in dogs are between 12-16 weeks and 8-16 months. These are ranges but for the individual the fear period may only last for a week or two depending on genetic temperament. There is a minor critical fear period around 7 - 9 weeks.
Professional dog trainers who have selected dogs for particular working purposes often schedule training and development activities around these critical fear periods to the extent that all activities are off and the dog is kept in a quiet, calm environment to protect the temperament of the dog.
I made some errors in my dog before I learned/understood this and she developed reactivity to other dogs who approached her, a socialisation error where I learned that 'free for all' socialisation is not always good for all temperaments. Her reactivity to other dogs didn't show up until around 18 months.
Also, in training her for the competition heel during which would have been her first major critical fear period, I was playing with her and just rewarding her for walking on my left side or being in the heel position and she started to put the pattern together and anticipating the food treat. She jumped up to get it as I bent down to deliver it and she hooked a puppy tooth into my finger pad - all totally accidental - and I stood up with 13kg of pup hanging of my finger by one tooth. My reaction in that moment (I screamed and shook her off my hand)frightened her and I had difficulty getting her back into heel position. Even now, if I reach to her with my left hand she ducks her head slightly, at times almost imperceptible, but still there :(.
In the first picture below, and much earlier in training than her current age, you can see my dog while other wise complying to everything asked of her by way of both position and focus is leaning her head away from my left hand. It was initially a lot of work for her to actually return back to the close heel position.
The second picture shows me holding my left hand away from her and that is how we continued our training when it seemed that she was happier to bring her head closer to my side when I made this adjustment. However in this picture, the position that she is holding her ears in indicates that, while she is complying, she is not entirely confident that she is safe