________ is the idea that one's performance will be hindered or heightened due to approval or disapproval from others

Reversible figures illustrate the observation that

a. individuals may fail to see fully visible objects. b. expectations do not influence perceptions. c. the same visual input can result in different perceptions. d. there is a one-to-one correspondence between sensory input and perception.

Pedro has suffered a head injury that causes him to have no memory of the events preceding the injury. He is suffering from

a. retrograde amnesia. b. anterograde amnesia. c. proactive interference. d. retroactive interference. e. dissociative amnesia.