So, some dogs come into this world with greater potential for enjoying newness, or at least successfully coping with it. Still, full development of this potential requires the right kind of experiences at the right age.
In order for dogs to maximize their ability to respond well to the unfamiliar, frequent and positive exposure to a variety of people, places and situations early on is essential. Without those opportunities, they may not be able to manage the unexpected as adults.
Puppies who encounter grass, cats, concrete, elevators, paper airplanes, toys, kids, blankets, music, oven timers, men and women, stairs, other dogs, people with canes, rugs, bells, hair dryers, fish tanks, mirrors, and a wide variety of other elements of their world are far more likely to develop into adult dogs able to handle them, as well as other novel things, later in life.
Socialization, or exposure to potential social partners, has received particular emphasis from behaviorists and trainers. Socialization is the process of becoming aware of the social world and learning how to behave within it. For dogs, it involves making sure that puppies have positive experiences with other dogs and people at the age during which they are most receptive to being influenced by those exposures.
Even brief encounters in the first few months of dogs’ lives can have a large impact on their future behavior. Absent these opportunities, no amount of contact later in life can make up for the deficiency. Dogs whose worlds were limited during puppyhood are rarely as comfortable around new things, including potential social partners, as those whose early months were rich in experiences.
That is why dogs raised in severely impoverished environments—tied up outside or used as breeding dogs in a puppy mill, for example—struggle to adjust to what most would consider a “normal” environment once they are liberated. In many cases, the problems they face are less a result of the bad things that happened to them and more about the good things that did not happen. For such dogs, anything new poses a serious challenge, and it can take them months, if not years, to improve. And in the end, it is unlikely that they will ever be able to deal with novelty as easily as dogs with more generous upbringings.
However, even well-adjusted, flexible, happy dogs can be shaken by traumatic incidents. Such events will affect some more than others, but no dog is immune to the effects of something extremely scary or upsetting.
A study of pet dogs who survived the 2011 Japanese earthquake and tsunami and the nuclear disaster that followed them showed that these dogs had issues and behavior consistent with post-traumatic stress disorder (PTSD). Compared with a control group of dogs who were not involved in the disaster, these traumatized dogs had a harder time learning new skills in training sessions, as well as greater difficulty connecting with new people (caregivers in their rehabilitation program).
Dogs can also be negatively affected by less harrowing, but still aversive, experiences. They may struggle when meeting new dogs who resemble one who attacked them when they were young, develop a reluctance to go to the park after being caught in a thunderstorm there or become uncharacteristically terrified of strangers as a result of being home alone during a burglary. On the other hand, many dogs do more than just accept new things in their lives; they sometimes actually prefer them. In a recent study, dogs were offered three toys—two familiar and one novel—and chose the new toy first in nearly 80 percent of the trials, indicating a preference for the new item over the well known.
Dogs’ ability to handle a great majority of what we present them with impresses me both in an intellectual, scientific way and in a “Wow! Gee whiz!” way. One of the great joys of working with dogs is that they regularly amaze me, making my own life seem ever new—in a good way.