We review the latest research investigating how people explain their own actions when they have been activated nonconsciously. We will discuss evidence that when nonconsciously activated behavior is unexpected (e.g., normviolating, against self -standards), negative affect arises and triggers confabulations aimed to explain the behavior. Nonconsciously activated behaviors may provide a window into everyday confabulation of (erroneous) explanations for behavior, which may also affect self-knowledge. Implications for self-concept formation and intentionality are discussed.Keywords Confabulation . Explanatory vacuum . Nonconscious goal pursuit . PrimingWe frequently answer questions about why we acted the way we did. BWhy did you take that job?^BWhy did you vote for that candidate?^In many cases, the real answers to these questions may never come to light because we have little introspective access to the mental processes that led to our choices and behaviors (Nisbett & Wilson, 1977). As a result, the explanations that people provide are (at least in part) confabulations, Bbased on a priori, implicit causal theories, or judgments about the extent to which a particular stimulus is a plausible cause of a given response^(p. 231). In this article, we will review the evidence that people confabulate explanations for their own behavior. We will emphasize instances in which the behavior to be explained was triggered automatically-by incidental cues in the environmentwhere there is emerging evidence that confabulations can both be provoked (when an experimenter asks for an explanation) and arise spontaneously (when the automatic behavior triggers negative affect by virtue of being unexpected).Do people really generate spontaneous confabulatory explanations for their behavior? In everyday life it is often difficult (or impossible) to assess the relationship between the origin of a given behavior and a person's explanation for performing that very same behavior. As a result, one challenge for researchers to understand these confabulated explanations for behavior is to identify contexts in which relevant causes are known. As we will review, some research directly asks people to explain their behavior, yielding evidence for provoked confabulations in both clinical and nonclinical settings. Recent research has used behaviors activated outside of awareness as a case in which researchers may further understand when and in what contexts people confabulate reasons for their behavior, not only when provoked but also spontaneously.Historically, explanations were shown to be erroneous (i.e., confabulatory) in a clinical context. Confabulations were classified as a disorder of memory (Hirstein, 2005) and related to delusions (Turner & Coltheart, 2010). In these cases, the content of the confabulation is verifiably false-a patient might describe a distant memory as a recent event. But as we will review, this behavior is not limited to clinical samples and there may be very little observable difference between confabulation and ...