Long-term potentiation (LTP) has been studied mostly in the___ but has also been found in the visual, auditory, and motor cortex.

Sam is known to be the fastest worker in the mail room

He has worked in the mail room for only a short time, but prides himself on being competent and a quick learner. He often gets positive comments from coworkers and his boss, which helps to motivate him and has a positive effect as he continues to challenge himself at work. As a result of his efficient style, he is also given more freedom than other workers, as his boss is impressed by his ability to sort and organize mail. Sam is likely to be ________ motivated as he continues to challenge and push himself to perform even better each day. a) intrinsically b) extrinsically c) superiorly d) withinsically

Researchers have used Carolyn Rovee-Collier's conjugate reinforcement technique to assess memory during infancy. According to this research,

a. infants show no measurable signs of memory until they are at least 4 months of age. b. if you change the environmental context in which the mobile is presented, infants show much lower retention. c. context apparently does not influence infants' memory. d. unlike adults, infants show no evidence of the spacing effect.