This model is part of wider Dichotic theory of salience, according to which a stimulus is salient either when it is incongruent in a certain context to a perceiver's schema, or when it is congruent in a certain context to a perceiver's goal.
âThat first day in the Hayden Planetariumâ¦I looked up, the lights dimmed and stars came out, and I was called by the universe. I had no choice in the matter,â he says. From then on, Neil was determined to become an astrophysicist, someone who studies the stars and universe. He saved up for a telescope and spent his evenings studying the night sky on city rooftops. His stargazing habits were not necessarily well received however, as his neighbors would often report him for suspicious behavior.
Cardiovascular Technologist Job Duties. A Cardiovascular Technologist uses high-frequency sound waves to produce diagnostic images for medical purposes. They are skilled technicians that specialize in heart function and anatomy. They image the heart in different views to detect abnormalities.