Doxycycline is a semi-synthetic tetracycline antibiotic prescribed to treat various bacterial infections such as urinary tract and bladder infections. Veterinarians also use Doxycycline to treat some diseases such as Rocky Mountain Spotted Fever and Lyme disease.
Habituation is actually a good thing; it indicates that the child is learning. For example, when there's a loud noise, Parker is startled and looks at whatever makes the noise. He is scared that the loud noise might mean danger.
The amount of dishabituation that occurs as a result of the introduction of a different stimulus can decrease after repeated presentation of the dishabituating stimulus. Some habituation procedures appear to result in a habituation process that last days or weeks.