In the study of language, negation and affirmation are considered to be considerably different in terms of their representation, in that Negation is considered harder to process. This view also prevails in most of the psycholinguistic research; the widely accepted view is that that contrary to affirmation, the representation of negation automatically triggers suppression, causing the focus to shift away from the negated concept and towards an alternative replacement. In this course we will challenge this approach. Alongside studies supporting the obligatory view of suppression, we will review studies showing that under certain circumstances, i.e. when such discourse requirements arise, negated concepts are retained. We will focus on critical analysis of research papers and the various methods used in psycholinguistic research.