Career Description of an Echo Technician. Echocardiography is one of the specializations that may be chosen by an ultrasound technician. Professionals in this field use sound wave projectors to project sound into human tissue in a conical or rectangular beam.
In most people, the left side of the brain contains the person's language functions. The right side contributes to a number of functions, such as attention, memory, reasoning, and problem solving (all of which contribute to effective communication).
In 1876, Karl Wernicke found that damage to a different part of the brain also caused language problems. This area of the brain (Wernicke's Area), was further back and lower in the brain compared to Broca's area. In fact, Wernicke's area is in the posterior part of the temporal lobe.