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.
1 An astronomer studies stars, planets and galaxies. 2  A botanist specializes in plants. 3  A cytologist specializes in the study of cells. 4  An epidemiologist studies the spread of diseases. 5  An ethologist studies animal behavior. An agronomist specializes in soil and crops. 2  An astronomer studies stars, planets and galaxies. 3  A botanist specializes in plants. 4  A cytologist specializes in the study of cells. 5  An epidemiologist studies the spread of diseases.