Function of the Amygdala. Such spectacular demonstrations may be misleading. Stimulation of the amygdala sometimes triggers violence, but apparently it does not always or even typically trigger violence. Electrical stimulation of the amygdala in humans usually creates fear or anxiety, not aggressive behavior. When the amygdala is removed from laboratory animals, they show no fear.
Hyoscyamine is used to treat a variety of stomach/intestinal problems such as cramps and irritable bowel syndrome. It is also used to treat other conditions such as bladder and bowel control problems, cramping pain caused by kidney stones and gallstones, and Parkinson's disease. In addition, it is used to decrease side effects of certain medications (drugs used to treat myasthenia gravis) and insecticides.
Hyoscyamine is an antagonist of muscarinic acetylcholine receptors (antimuscarinic). It blocks the action of acetylcholine at parasympathetic sites in sweat glands, salivary glands, stomach secretions, heart muscle, sinoatrial node, smooth muscle in the gastrointestinal tract, and the central nervous system.