Hanna and her husband came to Dr. Rex for treatment. Hanna was found to have almost no sexual fantasies or urges, and to avoid sexual relations. Which of the following should Dr. Rex consider as a possible cause for Hanna's problem?

Which of the following students provides the most accurate comparison between the prototype approach and the exemplar approach?

a. Tariq: "The prototype approach works well for concepts that are nouns, whereas the exemplar approach works well for concepts that are verbs, especially verbs that show action." b. Clifford: "The prototype approach says that concepts are associated with one best example of a category; the exemplar approach says that concepts are associated with many specific examples of a category." c. Ekaterina: "At first, researchers emphasized that these two approaches would be very different from each other; now researchers say that they are identical, when focusing on everyday objects and organisms." d. Lynne: "The prototype approach emphasizes items that exist in real life; the exemplar approach emphasizes geometric figures that don't exist in real life.

Little Lulu is a baby, and she is now more skilled at movements of her head than of her feet. This shows the

a. plasticity of development. b. consequences of catch-up growth. c. proximodistal trend in motor skills. d. cephalocaudal trend in motor skills.