It has long been known that colored images may elicit afterimages in complementary colors. We have already shown (Van Lier, Vergeer, & Anstis, 2009) that one and the same adapting image may result in different afterimage colors, depending on the test contours presented after the colored image. The color of the afterimage depends on two adapting colors, those both inside and outside the test. He...

Introduction Electroconvulsive therapy (ECT) is a procedure performed under general anaesthesia involving triggering an intentional brief seizure through small electrical currents the brain. The anaesthetic depth should be adequate prior to shock and measured with BIS, processed electroencephalogram (EEG) monitor. Adjusting hypnotic dose allows decrease ictal threshold thus improve response tre...