Aphasia is a language disturbance caused by a lesion of the brain, making an individual partially or totally impaired in his ability to speak, write, or comprehend the meaning of spoken or written words. It is distinguished from functional disorders such as stammering or stuttering, and from impaired speech due to physical defects in the organs used for speaking. What is the difference between Broca's aphasia and Wernicke's aphasia?
Back in the day
True color images taken and transmitted by Galileo, the unmanned spacecraft launched in 1989, allowed scientists to find out more about lo, the innermost of Jupiter's four Galilean moons. The images revealed erupting volcanoes and extraordinary variations in color and brightness. Other data indicated that lo has an iron core and might have its own gravitational field. What is the origin of Io's name?
Born on a day like today
Nietzsche was a German philosopher whose critiques of contemporary culture, religion, and philosophy centered on a basic question regarding the foundation of values and morality. He passionately rejected Western bourgeois civilization and regarded Christian civilization as decadent; in place of its "slave morality," he looked to the superman, the creator of a new heroic morality that would consciously affirm life and the life values. What is Nietzsche's concept of perspectivism?