Assessing the dream-lag effect among participants with different intuition score measured by the Myers–Briggs Type Indicator.

Abstract

The dream-lag effect refers to there being, after the incorporation of memory elements from the previous 1 or 2 days into dreams, a lower incorporation of memory elements from 3 to 4 days before the dream, but then an increased incorporation of memory elements from 5 to 7 days before the dream. This study investigates whether intuition measured by the Myers-Briggs Type Indicator can influence participants' ratings for the dream-lag effect. In total, 56 participants kept a diary for 7 days, reporting personally significant events and major concerns, and recorded their dreams in the 7th day night. Then they rated the level of matching between dreams and daily diary items. The dream-lag effect was found among the intuitive types, but not the sensing types. Furthermore, this effect was found only for the incorporation of personally significant events and not for major concerns. This suggested that the intuitive thinking may modulate the finding of dream-lag effect.

Targeted memory reactivation has a sleep stage‐specific delayed effect on dream content

“…The day‐residue effect depends on emotional involvement or experiential relevance and novelty (Eichenlaub, Cash, & Blagrove, 2017; Malinowski & Horton, 2014). The dream‐lag effect depends on type of prior experience (van Rijn et al., 2015), personality (Wang, Feng, Bin, Ma, & Shen, 2020) and sleep stage of the reported dream, i.e. rapid eye movement (REM) sleep but not stage 2 (N2; Blagrove, Fouquet, et al, 2011) or slow‐wave sleep (SWS; van Rijn et al., 2015).…”