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Sleep Helps Memory Problems

Concerned about your memory? Get a good night’s sleep, suggests a new study that discovered sleep helps reduce mistakes in memory.

The findings, which appear in the September issue of the journal Learning & Memory, have practical implications for everyone from students to senior citizens says Kimberly Fenn, principal investigator and Michigan State University assistant professor of psychology.

“It’s easy to muddle things in your mind,” Fenn said. “This research suggests that after sleep you’re better able to tease apart the incorrect aspect of that memory.”

Fenn and colleagues from the University of Chicago and Washington University in St. Louis studied the presence of false memory in groups of college students. While previous research has shown that sleep improves memory, this study is the first to address errors in memory, she said.

Study participants were exposed to lists of words and then, 12 hours later, exposed to individual words and asked to identify which words they had seen or heard in the earlier session.

One group of students was trained in the morning (10 a.m.) and tested after the course of a normal sleepless day (10 p.m.), while another group was trained at night and tested 12 hours later in the morning, after at least six hours of sleep.

Three experiments were conducted, using different stimuli. In each, the students who had slept had fewer problems with false memory – choosing fewer incorrect words.

How does sleep help? The answer isn’t known, Fenn said, but she suspects it may be due to sleep strengthening the source of the memory. The source or context in which the information is acquired is a vital element of the memory process.

Or perhaps the people who didn’t sleep during the study were simply bombarded with information over the course of the day, affecting their memory ability, Fenn said.

Further research is warranted, she said, adding that she plans to study different population groups, particularly the elderly.

“We know older individuals generally have worse memory performance than younger individuals. We also know from other research that elderly individuals tend to be more prone to false memories,” Fenn said.

“Given the work we’ve done it’s possible that sleep may actually help them to reject this false information. And potentially this could help to improve their quality of life in some way.”

Source: Michigan State University

Sleep Helps Memory Problems

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2015). Sleep Helps Memory Problems. Psych Central. Retrieved on August 15, 2018, from https://psychcentral.com/news/2009/09/11/sleep-helps-memory-problems/8312.html

 

Scientifically Reviewed
Last updated: 6 Oct 2015
Last reviewed: By John M. Grohol, Psy.D. on 6 Oct 2015
Published on PsychCentral.com. All rights reserved.