The underlying cause of the obstruction of blood to the brain in vascular dementia is hardening of the ______

Bobby agreed to be hypnotized during a comedy routine. While hypnotized, he stood on his chair and crowed like a rooster. Later, when his friends asked why he did this. Bobby replied that he didn't know, it must have been because he was hypnotized. What theory best explains his behavior?

a. the hidden observer theory of hypnosis b. the social-cognitive explanation of hypnosis c. the biological theory of hypnosis d. the behavioral theory of hypnosis

If mild to moderate depression alternates with periods when a person's mood is elevated, expansive, or irritable, the disorder is called

a. dysthymia. b. cyclothymic disorder. c. a conversion reaction. d. dissociative disorder.