"Does the language you speak affect how you think about the world? This question is taken up in three experiments. English and Mandarin talk about time differently-English predominantly talks about time as if it were horizontal, while Mandarin also commonly describes time as vertical. This difference between the two languages is reflected in the way their speakers think about time. In one study, Mandarin speakers tended to think about time vertically even when they were thinking for English (Mandarin speakers were faster to confirm that March comes earlier than April if they had just seen a vertical array of objects than if they had just seen a horizontal array, and the reverse was true for English speakers)."

a devastating measles epidemic broke out "coincident with," to use Neel's phrasing, his arrival in the field in 1968. Neel indicated he had brought two thousand doses of measles vaccine and had planned to hand these over to mis- sionaries in the region. But faced with the epidemic, Neel and his team vaccinated many Yanomami as well. Here is how Neel described his actions: "Much of our carefully designed protocol for that expedition was quickly scrapped as we dashed from village to village, organizing the missionaries, ourselves doing our share of immunizations but also treatment when we reached villages to which measles had preceded us. We always carried a gross, almost ridiculous excess of antibi- otics - now we needed everything we had, and radioed for more" (1994:162). To what degree this description accurately reflects Neel's actions during the epidemic is one of the critical questions in the controversy. Tierney accused Neel of wors- ening the measles epidemic through his actions; others have suggested Neel could have done more than he did to save Yanomami lives during the epidemic.

"The most serious charge accuses Neel of deliberately initiating a 1968 measles epidemic among the Yanomami by using a hazardous and contraindicated vaccine to test theories about human evolution, "leadership genes," and infectious diseases."

"The New Yorker have created a furor, Patrick Tierney, an investigative journalist, has accused both Neel and Chagnon of committing serious abuses against the Yanomami. He charges Neel with instigation of, or at the very least doing little or nothing to deal with, the serious measles epidemic among the Yanomami that resulted in thousands of deaths. "