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Anterior negativities obtained when a grammatical rule is violated may reflect highly automatic first-pass parsing processes, the detection of a morphosyntactic mismatch, and/or the inability to assign the incoming word to the current phrase structure. However, for some theorists these negativities rather reflect some aspect of working memory processes. Event-related brain potentials (ERPs) obtained for word category and morphosyntactic violations were directly compared with effects obtained when working memory is particularly demanded (embedding subject- or object-relative clauses), yielding a significant dissociation in terms of topography. Even though, the anterior negativities for grammatical violations vanished when relative clauses were embedded, suggesting that the processes reflected by anterior negativities related to grammatical violations and those related to working memory manipulations, even if different, are placing demands on a common pool of limited resources.

The unitary sense of self that exists across time is central to the human experience (Gallagher, 2000; Heatherton, Macrae, & Kelley, 2004). In this sense, the fundamental question on how humans understand and represent knowledge about themselves and others is attracting interest in social and cognitive neuroscience (Berkman, Livingston, & Kahn, 2017; Humphreys & Sui, 2016; Northoff, 2017). The concept of self-continuity is often defined as perceived associations of one's current self with past and future selves (Löckenhoff & Rutt, 2017). Northoff (2016a, 2017) has denoted this concept as a diachronic component linked to the awareness of the continuity of a person across time (i.e., "I am I" despite physical

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