Study Chiang Mai, Thailand, December 24, 2025 – Researchers have identified distinct behavioral and psychological profiles characterizing dogs with confirmed histories of abuse.
Intentional harm toward dogs leaves lasting psychological and behavioral effects, yet empirical data on the manifestation of these effects have been limited. This study examined dogs with a known or strongly suspected history of abuse to determine how their behavioral profiles differ from those of typical companion dogs. Five experts in canine behavior and abuse independently evaluated candidate dogs, resulting in 69 individuals meeting the strict criteria for inclusion.
Behavioral assessments were conducted using the Canine Behavioral Assessment and Research Questionnaire (C-BARQ), a validated tool measuring the frequency or intensity of specific behaviors. Compared with a large reference sample of 5,239 companion dogs, abused dogs exhibited markedly elevated levels of fear and aggression toward unfamiliar humans and other dogs. They also showed heightened excitability, hyperactivity, and persistent barking, behaviors frequently associated with chronic stress or impaired coping systems.
Another striking pattern was the increase in attachment and attention-seeking behaviors. Rather than indicating secure bonding, these tendencies may reflect anxiety-driven attempts to maintain proximity to caretakers. Abused dogs also displayed various repetitive or unusual behaviors, consistent with psychological distress and reduced environmental predictability during earlier life stages.
By delineating these behavioral and psychological signatures, the study establishes a foundation for identifying risk factors, potential sequelae, and therapeutic needs associated with canine abuse. These insights may help develop targeted interventions to support recovery and inform broader prevention strategies in animal welfare contexts.
Source: McMillan, F. D., Duffy, D., Zawistowski, S., & Serpell, J. (2015). Behavioral and Psychological Characteristics of Canine Victims of Abuse. Journal of Applied Animal Welfare Science.
