David Carmel is a research scientist at the Carrasco Lab, part of New York University’s Department of Psychology and Center for Neural Science. His area of research is Consciousness, with an emphasis on visual awareness. For example:Say you show volunteers written words, very briefly, and ask them to evaluate whether or not the words carried some emotional impact. The emotional words can be positive (for example, “holiday”), negative (“murder”), or neutral (“jacket”). It turns out that people are better at detecting negative than positive emotional information; interestingly, this is true even when the volunteers are shown words so quickly that they can’t consciously identify them – they're guessing about the words’ emotionality, but do so correctly a little above chance level when the words are negative, while remaining at chance for positive words. This pattern of results tells us that we can extract information from words we cannot consciously see, and furthermore, that we have evolved to be more sensitive to negative, potentially threatening information.