The investigators are testing the impact of quiet sounds played during sleep on brain oscillations and memory.
Participants will undergo two visits with a memory task and nap. During one of the visits, quiet sounds will be played timed with sleep oscillations. During the other visit, no sounds will be played. Brain oscillations and memory will be measured at each visit.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Enrollment
40
Quiet sounds are played during sleep
No sounds are played during sleep
Sleep spindle rate
Sleep spindles are prominent thalamocortical brain oscillations seen on EEG during sleep that have been mechanistically linked to sleep-dependent memory consolidation. The sleep spindle rate over the course of the nap will be assessed using an automated spindle detector applied to the collected EEG sleep data.
Time frame: 90 minutes
Memory consolidation
The motor sequence task (MST), a validated probe of memory consolidation, will be used to measure sleep-dependent memory consolidation. Participants will trained on MST before the nap opportunity and tested on MST after the nap opportunity to reliably measure memory consolidation.
Time frame: 90 minutes
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