Test Expectation Enhances Memory Consolidation across Both Sleep and Wake

Citation: Wamsley EJ, Hamilton K, Graveline Y, Manceor S, Parr E (2016) Test Expectation Enhances Memory Consolidation across Both Sleep and Wake. PLoS ONE 11(10): e0165141. doi:10.1371/journal.pone.0165141 Abstract: Memory consolidation benefits from post-training sleep. However, recent studies suggest that sleep does not uniformly benefit all memory, but instead prioritizes information that is important to the individual. Here, we examined the effect of test expectation on memory consolidation across sleep and wakefulness. Following reports that information with strong “future relevance” is preferentially consolidated during sleep, we hypothesized that test expectation would enhance memory consolidation across a period of sleep, but not across wakefulness. To the contrary, we found that expectation of a future test enhanced memory for both spatial and motor learning, but that this effect was equivalent across both wake and sleep retention intervals. These observations differ from those of least two prior studies, and fail to support the hypothesis that the “future relevance” of learned material moderates its consolidation selectively during sleep. Here, we archive both the raw datafile (in SPSS format) used to generate these results, and the laboratory procedures manuals used as a guide during data collection. A separate SPSS syntax file contains the data exclusions used for analysis. Questions may be addressed to Dr. Erin Wamsely at Furman University: [email protected]

Resting state EEG correlates of memory consolidation

This project archives methods and data for the study described in this manuscript: Brokaw, K., Tishler, W., Manceor, S., Hamilton, K., Gaulden, A., Parr, E., & Wamsley, E. J. (2016). Resting state EEG correlates of memory consolidation. Neurobiology of Learning and Memory, 130, 17–25. https://doi.org/10.1016/j.nlm.2016.01.008 The aim of this project was to determine the conditions under which memory is optimally enhanced across a short period of resting wakefulness. To accomplish this goal, we examined changes in memory across a brief interval filled with either quiet resting or active wakefulness, while brain activity was monitored using EEG

Data

SPSS format data file used for analysis

Participant Forms

Here we archive copies of questionnaires used in this research study

Tasks

Materials for short story task

Sleep Architecture.

<p>Sleep Architecture.</p

Experimental Group Characteristics at Baseline.

<p>Experimental Group Characteristics at Baseline.</p

Experimental Design.

<p>After training on two learning tasks, participants were retested following an 11hr delay filled with either wakefulness or sleep. Immediately after encoding, <i>test expected</i> groups were informed that they would be later tested on the same material, whereas <i>test unexpected</i> groups were not.</p