Sleep deprivation increases formation of false memory

Lo, June C.; Chong, Pearlynne Li Hui; Ganesan, Shankari; Leong, Ruth L F; Chee, Michael W.L.

doi:10.1111/jsr.12436

Cited by 71 publications

(43 citation statements)

References 38 publications

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“…These findings add to prior investigations performed by our laboratory exploring the cognitive consequences of sleep restriction. These have identified deficits associated with mood, sustained attention, working memory, executive function, speed of processing (Lo et al, 2015(Lo et al, , 2016a, vocabulary learning (Huang et al, 2016) and an increased tendency to form false memories (Lo et al, 2016c). Conversely, memory consolidation seems unaffected (Lo et al, 2016b).…”

Section: Discussionmentioning

confidence: 99%

Memory encoding is impaired after multiple nights of partial sleep restriction

Cousins

Sasmita

Chee

2017

Journal of Sleep Research

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SUMMARYSleep is important for normative cognitive functioning. A single night of total sleep deprivation can reduce the capacity to encode new memories. However, it is unclear how sleep restriction during several consecutive nights affects memory encoding. To explore this, we employed a parallelgroup design with 59 adolescents randomized into sleep-restricted (SR) and control groups. Both groups were afforded 9 h time in bed (TIB) for 2 baseline nights, followed by 5 consecutive nights of 5 h TIB for the SR group (n = 29) and 9 h TIB for the control group (n = 30). Participants then performed a picture-encoding task. Encoding ability was measured with a recognition test after 3 nights of 9 h TIB recovery sleep for both groups, allowing the assessment of encoding ability without the confounding effects of fatigue at retrieval. Memory was significantly worse in the sleep-restricted group (P = 0.001), and this impairment was not correlated with decline in vigilance. We conclude that memoryencoding deteriorates after several nights of partial sleep restriction, and this typical pattern of sleep negatively affects adolescents' ability to learn declarative information.

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Section: Discussionmentioning

confidence: 99%

Memory encoding is impaired after multiple nights of partial sleep restriction

Cousins

Sasmita

Chee

2017

Journal of Sleep Research

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“…Our results con rm this idea. Sleep deprivation affects memory retention, increases erroneous memory formation [57], and is associated with a lack of judgment and attention [58]. Therefore, sleep deprivation from ST just before bedtime could affect attitudes toward learning, learning comprehension, and ultimately, overall academic achievement.…”

Section: Relationship Between St and Each Itemmentioning

confidence: 99%

Screen Time Duration and Timing: Effects on Obesity, Physical Activity, Dry Eyes, and Learning Ability in Elementary School Children

Mineshita

Kim

Chijiki

et al. 2020

Preprint

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Background: As internet use becomes more widespread, the screen time (ST) of elementary school students increases yearly. It is known that longer durations of ST can affect obesity, physical activity, dry eye disease, and learning ability. However, the effects of ST just before bedtime have not been clarified. Therefore, we examined ST duration and timing effects on elementary school children. Methods: We conducted a survey of 7,419 elementary school students in Tokyo, Japan using a questionnaire on food education. ST duration and timing (just before bedtime) served as the explanatory variables, and the relationship between obesity, physical activity, dry eyes, and learning ability was analyzed using logistic regression analysis. Gender, school year, height, and weight were considered confounding factors. First, we examined whether ST duration and timing were related to each objective variable, using a univariate model to examine all variables. Thereafter, we performed multivariate logistic regression analyses for all variables showing a significant difference in the univariate models.Results: The results showed that the relationship between the ST duration and obesity, physical activity, and learning ability was statistically significant. The relationship between ST timing and obesity, dry eyes, and learning ability was also statistically significant. Therefore, ST timing has a greater effect on dry eyes, and ST duration has a greater effect on academic performance. Conclusion: Our findings indicate that ST in school children is related to obesity, physical activity, dry eyes, and learning ability, and they suggest that not only the duration but also the timing of ST is important.

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“…However, it has been questioned whether DRM false memories occur by the same processes as real-world false memories (Frenda, Patihis, Loftus, Lewis, & Fenn, 2014;Ost et al, 2013). Using a richer, more real-world like misinformation task, Frenda et al (2014) and Lo, Chong, Ganesan, Leong, and Chee (2016) found an increase of false memory after sleep deprivation, but not after sleep. The present study aimed to examine the effect of sleep on false memory in a novel manner that more closely resembles real life, using the story-based non-forensic version of the Gudjonsson Suggestibility Scale (GSS) 2 (Gudjonsson, 1987).…”

Section: Introductionmentioning

confidence: 99%

Sleep does not cause false memories on a story-based test of suggestibility

Rijn

Carter

McMurtrie

et al. 2017

Consciousness and Cognition

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Sleep contributes to the consolidation of memories. This process may involve extracting the gist of learned material at the expense of details. It has thus been proposed that sleep might lead to false memory formation. Previous research examined the effect of sleep on false memory using the Deese-Roediger-McDermott (DRM) paradigm. Mixed results were found, including increases and decreases in false memory after sleep relative to wake. It has been questioned whether DRM false memories occur by the same processes as real-world false memories. Here, the effect of sleep on false memory was investigated using the Gudjonsson Suggestibility Scale. Veridical memory deteriorated after a 12-h period of wake, but not after a 12-h period including a night's sleep. No difference in false memory was found between conditions. Although the literature supports sleep-dependent memory consolidation, the results here call into question extending this to a gist-based false memory effect.

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Sleep deprivation increases formation of false memory

Cited by 71 publications

References 38 publications

Memory encoding is impaired after multiple nights of partial sleep restriction

Memory encoding is impaired after multiple nights of partial sleep restriction

Screen Time Duration and Timing: Effects on Obesity, Physical Activity, Dry Eyes, and Learning Ability in Elementary School Children

Sleep does not cause false memories on a story-based test of suggestibility

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