What can disrupted sleep oscillations tell us about the circuitry of neurodegeneration? Matar et al. report altered spindles and slow oscillations in Lewy body disorders, using NREM sleep as a window into thalamocortical dysfunction. buff.ly/XmG2wWt

Thalamocortical correlates of sleep spindle and slow oscillation dysfunction in Lewy body disorders

Sleep disturbances are pervasive in Lewy body disorders (LBD), but their neurophysiological basis remains unclear. Non-rapid eye movement (NREM) sleep offers an objective window into thalamocortical…

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How much can 15 days of a disrupted sleep-wake schedule change the emotional brain? Wang et al. found reduced gray-matter volume across multiple left amygdala subregions after experimentally induced circadian disruption, with larger reductions associated with worse sleep quality. buff.ly/aI2w7Br

Does sleep process a stressful day differently from a neutral one? Hein et al. found that stress before bed ⬇️ SO–spindle coupling & disrupted the relationship between NREM low-frequency activity & overnight memory retention—particularly for emotional material. buff.ly/cQIDVSN

Insomnia may have measurable occupational consequences. In 126,733 service members, Rupert et al. found lower retention after ~20 months; at 48 months, 26.5% with chronic insomnia remained in service vs 32.8% of matched controls. buff.ly/0Prpi3Y

CBT-I may help during hypnotic tapering, but the evidence for actually getting people off medication is less clear. Zhang et al.’s meta-analysis of 13 RCTs found no reliable improvement in complete benzodiazepine/Z-drug discontinuation, despite some benefit for insomnia symptoms. buff.ly/tH1HFy9

Sage Journals: Discover world-class research

Subscription and open access journals from Sage, the world's leading independent academic publisher.

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Fear learning may actually make some hippocampal representations more similar. In mice, Rozeske et al. found greater threat/neutral overlap in ventral CA1, which predicted faster reinstatement of the fear memory. Might be why it's harder to overwrite those memories! buff.ly/06J8o4X

Sleep beliefs may shape behavior even when sleep itself doesn’t change. In an experimental study, Chu et al. told participants they had slept either well or poorly; those told they slept poorly behaved less prosocially on a behavioral task—not bc they became more overtly aggressive. buff.ly/rcOg3X4

LJMU Research Online

Ireland, J ORCID: 0000-0002-5117-5930 and Chu, S (2026) Can misinformation about sleep shape aggressive and prosocial behaviour. Journal of Aggression, Conflict and Peace Research. ISSN 1759-6599

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Sleep loss may change how we experience art! 🎨 In a controlled crossover study, Godinho et al. found that restricting sleep to 5.5 hours reduced ratings of both the beauty and likability of abstract artwork, with the effects mediated by reduced positive mood and greater sleepiness. buff.ly/X1kbaca

<em>Journal of Sleep Research</em> | ESRS Journal | Wiley Online Library

Sleep loss influences basic emotional and cognitive processes, but its impact on higher-order naturalistic cognition, such as aesthetic judgements, is less understood. The current study primarily…

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Wearables may help with parts of insomnia, but they’re not a replacement for CBT-I. Zhu et al.’s meta-analysis of 16 RCTs found modest improvements in sleep onset, subjective sleep efficiency, and sleep time—but no significant improvement in overall insomnia severity. buff.ly/H7yVwXn

Registration is now open for the Sleep Research Society’s Advances in Sleep & Circadian Science (ASCS) 2027 conference, taking place Feb 19-22, 2027, in Austin, TX. Don't miss this opportunity to connect w/ leading experts & explore the latest research in sleep & circadian science! buff.ly/B64BcHm

Advances in Sleep & Circadian Science - Sleep Research Society

Advances in Sleep & Circadian Science (ASCS) 2027

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Slow waves may matter not only because they occur, but because they travel. Sharon et al. found that greater frontal tau pathology was linked to more isolated, nontraveling slow waves—and this disruption helped explain poorer overnight memory retention. buff.ly/0K3Czv4

Closed-loop stimulation may improve memory through more than just boosting slow waves. Grimaldi et al. found that better retention tracked the balance of slow-oscillation vs delta coupling to spindles, along with ⬆️ parasympathetic activity—not simply stronger SO–spindle coupling. buff.ly/JyhmjGn

Acoustic enhancement of slow wave sleep improves memory retention by coordinating brain oscillatory rhythms and autonomic activity

Sleep plays a crucial role in memory consolidation. While the interaction between sleep oscillations and autonomic activity likely influences this process,

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A striking demonstration that sleep physiology can be manipulated in real time: Levitt et al found that closed-loop auditory stimulation timed to slow-wave peaks ⬆️ cerebrospinal fluid flow during NREM sleep, providing evidence for a causal link btwn slow waves & CSF dynamics! buff.ly/qLtjlWy

Closed-loop auditory stimulation in phase with slow waves during sleep enhances cerebrospinal fluid flow in humans

Sleep slow-wave neurofeedback inside the MRI scanner can drive large-scale cerebrospinal fluid flow.

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Digital CBT-I can expand access, but accessibility isn’t automatic. In a case study, Van Rossen et al. found sleep efficiency improved from 63% to 87%, while sound-based alarms and other treatment features created avoidable barriers for a deaf patient. Accessibility is key! buff.ly/HqqGxLT

Is Digital Cognitive Behavioral Therapy for Insomnia Accessible for th | NSS | Dove Medical Press

Highlighting unaccounted gaps in dCBT-I treatment adherence, by exploring the experience of a deaf individual engaging in a six-week dCBT-I program

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A great opportunity for early-career sleep and circadian researchers: applications are open for AASM Foundation’s Young Investigators Research Forum 2027. I was a past YIRF trainee and highly recommend it! Applications due Oct. 19: buff.ly/knCqdUZ

Young Investigators Research Forum - AASM Foundation

The AASM Foundation is committed to growing and supporting the pipeline of sleep scientists by investing in the research careers of new investigators through mentorship and grantsmanship training…

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Human evidence tying hippocampal CA1 function directly to sleep-dependent memory is hard to come by. A pre-print from Hanert et al. found that transient CA1 dysfunction impaired overnight consolidation, with recovery in NREM theta tracking memory recovery. buff.ly/J7oQ7Jr

Hippocampal CA1 neurons are crucial for sleep-associated memory formation in humans: The role of theta power during NREM sleep

The formation of long-term memory during sleep depends on the reactivation and redistribution of recently acquired mnemonic information during non-rapid eye movement (NREM) sleep. Animal studies sugge...

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Can noninvasive stimulation reach the hippocampus during sleep and change memory? A pre-print from Okyere et al. report that temporal interference stimulation timed with memory reactivation reduced associative forgetting and boosted fast-spindle amplitude. Stimulating work! buff.ly/IYqOLu8

A useful big-picture look at why insomnia deserves attention beyond nighttime symptoms. Vignatelli et al.’s review found evidence linking insomnia to several health outcomes, including stroke and suicide-related outcomes. Prioritizing sleep has a host of downstream health benefits! buff.ly/fUGeysX

A nice real-world look at the sleep–mood relationship: across 1,712 nights with home EEG, Pierson-Bartel et al. found later sleep onset predicted lower positive affect the next day. Sleep timing may matter for mood independently of how well we sleep. buff.ly/iryU8Qc

Sleep timing regulates mood: A multilevel-EEG study of daily life

Sleep and mood are homeostatically regulated systems essential for mental and physical health. Understanding how sleep timing and mood dynamically influence each other, and which individual traits mod...

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Can what we think about before sleep shape our dreams? Holder & @wamsleylab.bsky.social found that reactivating emotional autobiographical memories shifted subsequent dream emotion, but dreaming about those memories did not reduce overnight emotional reactivity. Sweet dreams! doi.org/10.1093/slee...

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This research demonstrates that reactivating remote emotional memories before sleep influences subsequent dream emotions. Notably, we found no evidence tha

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We’ve somehow ended up at the first Millport Pride on tiny Great Cumbrae Island off the west coast of Scotland. What a marvellous day.

How you ask about insomnia can substantially change the answer. In 1,322 people with chronic musculoskeletal pain, Runge et al. found prevalence ranged from 53% to 79% depending on the definition of insomnia used, affecting the estimated effect sizes too! doi.org/10.1016/j.ms...

Digital CBT-I may be especially useful for expanding treatment access in older adults. A meta-analysis of 9 RCTs by Liu et al. found meaningful reductions in insomnia severity, including w/ unguided programs—suggesting progress can be made even without therapist intervention doi.org/10.1007/s125...

Postpartum sleep problems may be getting missed more often than we realize. Takenoshita et al found that 13% of adults met criteria for insomnia disorder 6 weeks postpartum, but only 2 of 20 cases had received a clinical evaluation highlighting a major gap in postpartum care doi.org/10.1007/s444...

How long after learning can sleep still reshape a memory? A pre-print from Moyano et al. suggests that targeted memory reactivation during NREM sleep reduced forgetting even when the memories had been learned 24 hours earlier. Exciting news for building learning over time! doi.org/10.64898/202...

Interesting evidence that sleep-dependent memory processing may begin before we even fall asleep: Denis et al. found that theta activity during learning predicted later slow oscillation–spindle coupling during sleep, which in turn predicted better memory. doi.org/10.1371/jour...

Theta oscillations tag episodic memories for sleep-dependent consolidation

Why some experiences are retained while others fade remains a central question in memory research. This study shows that theta-band activity during learning marks memories for sleep-dependent consolid...

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Anderson et al found that greater EEG slowing during REM sleep was linked to worse global cognition and executive function in Lewy body disorders—and tracked dysfunction in cholinergic brain networks. An interesting example of sleep physiology as a potential biomarker www.nature.com/articles/s41...

Frimpong et al. found that a single bout of moderate evening exercise helped protect declarative memory after sleep restriction—and the benefit was statistically mediated by more slow-wave sleep. A nice mechanistic link between exercise, sleep, and cognition. academic.oup.com/sleep/advanc...

Slow-Wave Sleep Mediates the Compensatory Effects of Acute Moderate-Intensity Exercise on Declarative Memory Deficits in Sleep Restriction

Here, we demonstrate that a single session of moderate-intensity evening exercise performed before a night of sleep restriction was associated with better

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Do et al. tested brief CBT-I in 219 women undergoing chemotherapy for breast cancer. Despite ongoing chemotherapy, CBT-I produced significantly > improvements in insomnia than comparison conditions; bright light therapy did not. Further support for benefits of CBT-I! jamanetwork.com/journals/jam...

Cognitive Behavior vs Bright Light Therapy for Insomnia in Women With Breast Cancer

This randomized clinical trial examines the effectiveness of cognitive behavior therapy for insomnia compared with bright light therapy for treating insomnia and fatigue symptoms in Australian women…

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Now out in Learning and Memory! pubmed.ncbi.nlm.nih.gov/42608289/ Fun collaboration with @alexatompary.bsky.social, led by then-undergrad Tiange (Summer) Lu, who just started grad school at Rice, working with @asinclair.bsky.social!

No evidence for sleep-dependent memory generalization in a large online sample - PubMed

Memory generalization allows individuals to extract and apply information from prior experiences to novel situations, supporting flexible learning and efficient decision-making. Theoretical models suggest that sleep should facilitate generalization, yet the literature examining its role in promoting …

pubmed.ncbi.nlm.nih.gov

Eitan Schechtman@eitans.bsky.social · 7mo ago

In yet another preprint, Tiange (Summer) Lu collaborated with @alexatompary.bsky.social to examine whether sleep promotes generalization in a large online cohort (N=137). Not only did she not find a benefit of sleep, but some evidence also suggested that wakefulness promotes generalization. 3/12