| AGE (WEEKS) |
PERIOD |
PROBLEM IMPLICATION |
| 3-14 |
Socialization |
If socialized later than 14 weeks, (or
between 12-14 weeks in some dogs) shyness or aggressiveness may dominate behavior. |
| 6-8 |
Optimum Socialization |
If socialized earlier, shyness often
develops, along with over-dependence on the owner, which may lead to overprotectiveness. |
| 8-10 |
Fear Imprint |
Traumatic, fear producing experiences may be
permanently impressed causing defensive reactions in some circumstances. |
| 12-14 |
Puberty Onset |
Meaningful sexual mounting often occurs.
Males display erections. |
| 18-40 |
Protective/Aggressive |
Barking at strangers and other territorial
and social group protective tendencies may occur. Leg lifting may begin in males. |
| 36-56 |
Functional |
Many dogs become more serious about
protective-aggressive behavior. A general persistence in behavior problems is noted and
corrections become more difficult. |
| 104-208 |
Achievement |
Protective-aggressive behavior can be
especially purposeful. Problem behavior appears to become self-rewarding and habitual.
Corrections are markedly more difficult. |