For years, compulsive behaviors have been viewed as bad habits stuck on autopilot. But new research in rats found the ...

Andrew Luescher, director of Purdue's Animal Behavior Clinic and one of about 30 board certified animal behaviorists in the country, estimates that 2 percent of the dog population has canine ...

When one friend is habitually the payer, others may feel grateful, indebted, infantilized, or even relieved. Over time, the pattern can, intentionally or unintentionally, produce moral leverage. The ...

A specific pattern of brain activity in a frontal brain region is linked to compulsive behaviors like excessive hand washing, ...

A decade-long debate seemed settled in June when the World Health Organization officially added “compulsive sexual behavior disorder” to the newest edition of the International Classification of ...

All mice groom themselves to keep their fur clean, but some in a lab in Columbia University, New York, have started grooming to an unusual and excessive degree. This isn’t vanity. Instead, it’s the ...

An overactive molecular signal pathway in the brain region of the amygdala can lead to obsessive-compulsive disorder. A research team has now established this connection. Some people have an extreme ...