Critical Thinking Exercises for Kalat’s Biological Psychology, 9e Critical Thinking Questions Chapter 14 Cognitive Function What Is the Function of Language? Language appears to be a unique ability of humans. Have students discuss the function of language in human societies. Have students especially examine the possibility that language serves some unique role not found in other types of animal communication. Gender and Reading Disorders Boys are over represented in the population of children with reading disorders. Have students discuss whether differences in lateralization account for the greater amount of language disability. Moreover, ask students to discuss whether boys have some advantages due to the greater lateralization.