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 most people (97%), both Broca's area and Wernicke's area are found in only the left hemisphere of the brain. In the early 1950s, the famous neurosurgeon Wilder Penfield and his colleague Herbert Jasper, described how electrical stimulation of certain areas of the brain blocked language.n most people (97%), both Broca's area and Wernicke's area are found in only the left hemisphere of the brain. In the early 1950s, the famous neurosurgeon Wilder Penfield and his colleague Herbert Jasper, described how electrical stimulation of certain areas of the brain blocked language.