To examine whether depression is stable or changes with age, Dr. Bleu followed a group of participants from age 8 to age 40. This is an example of a __________ design

When newer information interferes with the retrieval of older information, this is called ______________

a) cue-dependent forgetting b) proactive interference c) decay d) retroactive interference

____________ neurons play a key role in cerebral activation during alert wakefulness

a. Adenosine b. Histamine c. Acetylcholine d. Serotonin e. GABA