Hearing, incorporation and recall differ
A person may report hearing a sound, report material linked to a task, or remember neither. Those outcomes should not be treated as one measure.
Cue
What was associated with a waking experience?
Report
What did a later account actually contain?
A sound in a dream can feel unusually direct: an alarm becomes a bell, a voice becomes part of a scene, or a noise is only recognised after waking. Research on sound cueing asks a narrower question than whether sounds control dreams. It can link a sound with a waking task, present it under monitored conditions, and compare later reports against a defined record.
The distinction is important because a remembered sound is not automatically an incorporated task element. Nor does the absence of a sound in a report prove that nothing was presented or experienced. Reports are memory records, with all the gaps that memory can have.
Separate the sound from the story
A cue is a sound used in a defined set-up. Hearing is what a person may later say about the sound itself. Incorporation is a judgement that a report contains material related to a waking task or cue. These are connected ideas, but they cannot be substituted for one another without losing the question being asked.
This matters in ordinary language too. ‘I heard music in my dream’ describes a remembered feature. ‘The music caused the dream’ adds a causal claim. ‘The music controlled the dream’ adds still more. A careful account can keep the first sentence while leaving the others open. That small distinction is often enough to stop a striking detail becoming a conclusion.
What the REM sound-cue study reported
Konkoly and colleagues (2025) studied 20 participants, preferentially recruiting frequent dream recallers. Each learned two tasks linked to different sounds; one sound was presented during monitored REM sleep and another condition used silent sham periods. Blinded coders assessed reports. Across the night, reports contained more elements from the cued than uncued task, though this was not found for every participant. Incorporation did not differ significantly between reports following cued and silent REM periods. Investigating dreams by strategically presenting sounds during REM sleep to reactivate waking experiences (Konkoly et al., 2025)
Why the comparison is more than a speaker
What was learned before sleep?
A cue has a defined association only because a waking task came first.
What was compared?
Cued and uncued material, as well as silent periods, answer different parts of the question.
Who judged the reports?
Blind coding helps keep a hoped-for theme from being read into every image or phrase.
The design cannot make every report transparent. A dream account may be brief, indirect or absent. Its strength lies in setting rules for comparison before the reports are interpreted, rather than deciding afterwards that any mention of a sound must count as success. Pre-set rules also make disagreement about a borderline report easier to examine.
A fictional report comparison
The example shows why coding rules matter. A report can resemble a task in one respect and not another. Without a defined comparison, it is easy to make an appealing connection after the fact and much harder to say what would count against it.
What sound cueing does not promise
The study does not show that a sound can reliably control a dream, insert a chosen plot or work for everyone. It does not make a report of hearing a sound equivalent to incorporating a learned task. It also does not establish that a cue presented in one period will be remembered immediately after that period.
This article offers no sleep-audio instructions. Research protocols include their own timing, monitoring and comparison rules, and a bedside recording cannot reproduce those conditions. Protecting ordinary sleep is more important than turning a laboratory question into a personal experiment.
Questions to ask of a sound claim
What did the sound stand for before sleep? Was the report coded against a task, a cue or both? What comparison condition was used, and when was the report collected? Finally, does a claim concern a group pattern or every individual? These questions preserve the interesting finding while stopping a small cue from becoming an all-purpose explanation.
A sound in a report is a detail; a study’s comparison is what gives that detail meaning.
Sources and further reading
- Investigating dreams by strategically presenting sounds during REM sleep to reactivate waking experiences (Konkoly et al., 2025)Monitored REM sound-cue study using learned tasks, silent sham periods and blinded report coding.
