As humans, we frequently engage in mental time travel, reliving past experiences and imagining possible future events. This study examined whether similar factors affect the subjective experience associated with remembering the past and imagining the future.Participants mentally "re-experienced" or "pre-experienced" positive and negative events that differed in their temporal distance from the present (close versus distant), and then rated the phenomenal characteristics (i.e., sensorial, contextual, and emotional details) associated with their representations. For both past and future, representations of positive events were associated with a greater feeling of re-experiencing (or pre-experiencing) than representations of negative events. In addition, representations of temporally close events (both past and future) contained more sensorial and contextual details, and generated a stronger feeling of reexperiencing (or pre-experiencing) than representations of temporally distant events. It is suggested that the way we both remember our past and imagine our future is constrained by our current goals. One of the most fascinating achievements of the human mind is its ability to engage in mental time travel in order to mentally relive past experiences (Suddendorf & Busby, 2003;Tulving, 2002;Wheeler, Stuss, & Tulving, 1997). When mentally traveling back to the past, we may remember an event in considerable detail, for instance by "seeing" in our mind the location where this past experience took place as well as the persons and objects that were present, by remembering the unfolding of the event as well as what we felt or thought when experiencing it, and so forth. Such detailed sensorial and contextual (spatio-temporal) information is an essential aspect of memory because it provides the rememberer with a subjective "sense of self" in the past (Klein, 2001) and enables him or her to distinguish memories of events that have been personally experienced in the past from other kinds of representations such as dreams, imagined events, or beliefs (Johnson, Hashtroudi, & Lindsay, 1993). According to Tulving's most recent characterization of episodic memory (Tulving, 2002;Wheeler et al., 1997), the hallmark of episodic retrieval is what he terms "autonoetic" (self-knowing) consciousness, which is "the kind of consciousness that mediates an individual's awareness of his or her existence and identity in subjective time extending from the personal past through the present to the personal future" (Tulving, 1985, p. 1). Autonoetic consciousness is thought to allow not only the subjective experience associated with reexperiencing a past experience but also the ability to project oneself forward in time to mentally "pre-experience" an event (Wheeler et al., 1997). However, although many researchers have showed increased interest in the subjective experience of remembering, by investigating either states of awareness (e.g., Gardiner, 1988;Tulving, 1985) or phenomenal characteristics (e.g., Johnson, Foley, Suengas, & Raye, ...

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Several authors have investigated the risks arising from the growth in mobile phone use (e.g. debts incurred by young people). The aims of the present study are (1) to validate a new questionnaire assessing problematic mobile phone use: the Problematic Mobile Phone Use Questionnaire (PMPUQ), and (2) to investigate the relationships between the PMPUQ and the multi-faceted construct of impulsivity. With these aims, 339 subjects were screened using the PMPUQ and the UPPS Impulsive Behaviour Scale (UPPS) which assesses four distinct components associated with impulsive behaviours (urgency, lack of premeditation, lack of perseverance and sensation seeking). The results showed that the PMPUQ has an acceptable fit and assesses four different dimensions of problematic mobile phone use (prohibited use, dangerous use, dependence, financial problems). While each facet of impulsivity played a specific role in mobile phones use, urgency appeared to be the strongest predictor of problematic use.