The beneficial effects of discussing dreams are described in the following two papers:
In these studies dreams were discussed for about 40 minutes and the discussions resulted in high levels of insight about the memory sources of the dream and/or insight about the dreamer's waking life.
In soon to be published work we are comparing outcomes of such discussions of dreams to discussions of daydreams. Many thanks to the Bial Foundation for funding that work. The results and background rationale for the study were presented at a public event at the Freud Museum, London, on 20th March 2016.
In all this work the outcomes of considering dreams were assessed just after the discussions.
One of the aims of DreamsID is to investigate whether the consideration of a dream and of an artwork based on the dream, has beneficial personal outcomes across many months after the artwork is produced.
In our recent as yet unpublished work at Swansea Sleep Lab we have woken sleepers in the lab and asked them for dream reports from REM and deep Slow Wave Sleep. They had kept a 10 day diary before coming to the lab. We later asked them to identify items in the diaries that matched the dream content. We found that items that were incorporated into dreams were more emotional than items that were not incorporated.
Ernest Hartmann wrote in his book The Nature and Functions of Dreaming (OUP, 2011) that we can dream of waking life emotional events either directly or metaphorically.
This has now been shown by the following experiment.
In Davidson and Lynch a high impact film of the events of 9/11 and a non-emotional educational film were shown to participants. The critical waking life event was thus experimentally determined, to control for post hoc confabulations between dream content and prior events. There were more literal, closely associated and distantly associated (i.e., non-literal) references to 9/11 after the 9/11 video than after the education video, but the most significant difference was in distantly associated references. There was more fear, sadness, and shock, and less joy, contentment and excitement in dreams after seeing the 9/11 film than after the education film. This suggests dream content has literal and associative or metaphoric content.
Davidson, J., & Lynch, S. (2012). Thematic, literal and associative dream imagery following a high-impact event. Dreaming, 22, 58-69. http://dx.doi.org/10.1037/a0026273
Paper on memory consolidation during sleep being affected by the value one places on the material being learned
Paper on memory consolidation during sleep being affected by the value one places on the material being learned.
Click on the following link to see this recent paper by Mark Blagrove and colleagues at the Swansea University Sleep Lab. The influence of waking life motivations on brain and memory processes during sleep is one of the findings relevant to the claim that dreams reflect waking life concerns and motivations.
The following paper describes the relationship between claims that dreaming has a function and claims that considering dreams can result in personal insight.