
Fearful chicken: Fear affects stress, behavior patterns, and other individuals
Elske de Haas, Ph.D. studied the effects of fearfulness on the chickens' own behavior and physiology, but also what it did to other individuals.

Anxiety is ancient – how crayfish resemble vertebrates
Fear is something we all know. It changes our behavior: we freeze, try to escape, or respond with aggression. Fear can also cause anxiety, which is a more complex phenomenon.

How to easily automate the elevated plus maze test
Anxiety. It is nature’s way to keep us out of harm’s way, so it is a useful emotion. At times, though, it can also be overwhelming. For some, it gets out of control, irrational, and even disabling.

Unraveling the chemistry of mood disorders
The most common psychiatric disorders are mood and anxiety related. However, the underlying mechanisms of these diseases are still largely unknown. This complicates the development of effective treatment and drugs.