“…Several researchers have suggested that stressful waking-life experiences are also preferentially incorporated into dreams, indicating that stressfulness, as well as emotionality, may be a factor that influences continuity (e.g. Breger, 1967;Koulack, 1993;Piccioni et al, 2002;Wright & Koulack, 1987). For example, dreams are very clearly affected by traumatic experiences (see reviews by, for example, Barrett (1996) and Punamäki (2007)), and other more common stressful waking-life experiences such as surgery (Breger, Hunter, & Lane, 1971) and divorce (Cartwright, 1991(Cartwright, , 2011Cartwright et al, 1984;Cartwright et al, 2001;Cartwright et al, 2006).…”