Dr. zane has been studying monkeys' ability to classify photographs of cats and dogs. after the monkeys became competent at this classifying task, dr. zane found that certain of their frontal lobe neurons fired in response to new "catlike" or "doglike" images. this suggests that the monkeys: can form concepts. are smarter than 3-year-old children. have the ability to form syntax. are not prone to fixation.