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).
The theory is that the left side of the brain controls the language function. When the cards are in the right hand the left hemisphere recognizes and can vocalize the word cards. The right side cannot speak the word because speech is not its function. Split Brain Syndrome also has an impact on the personality.