Popular culture has served up portrayals of Neanderthals since the early 20th century. Early depictions conveyed and perpetuated notions of proverbially crude, low-browed cavemen; since the latter part of the 20th century, some depictions have modeled more sympathetic reconstructions of the genus Homo in the Middle Paleolithic era.In popular idiom, people sometimes use the word "Neanderthal" as an insult - to suggest that a person so designated combines a deficiency in intelligence and a tendency to use brute force. The term may also imply that a person is old-fashioned or attached to outdated ideas, much in the same way as the terms "dinosaur" or "Yahoo".