The effect of beat frequency vibration on sleep latency and neural complexity: a pilot study

2021 ◽  
pp. 1-1
Author(s):  
Benjamin J. Himes ◽  
Jonathan D. Blotter ◽  
Daniel B. Kay ◽  
Scott C. Steffensen ◽  
J. Brent Feland ◽  
...  
Keyword(s):  
Pilot Study ◽  
Sleep Latency ◽  
Beat Frequency

scholarly journals Dual Use of E-Cigarettes with Conventional Tobacco is Associated with Increased Sleep Latency

2021 ◽  
Author(s):  
Laura Crotty Alexander ◽  
Ira Advani ◽  
Deepti Gunge ◽  
Shreyes Boddu ◽  
Sagar Mehta ◽  
...  
Keyword(s):  
Social Media ◽  
Pilot Study ◽  
Sleep Quality ◽  
Sleep Latency ◽  
Monetary Incentive ◽  
Dual Use ◽  
Online Surveys ◽  
Falling Asleep ◽  
Shared Component ◽  
The Impact

Abstract RationaleHealth effects of e-cigarettes remain relatively unknown, including impact on sleep quality. We previously showed in a pilot study that females who both smoke conventional tobacco and vape e-cigarettes (dual users) had decreased sleep quality and more difficulty falling asleep, suggesting an effect of gender. We undertook this study in a larger cohort to assess the impact of e-cigarette, conventional tobacco, and dual use on sleep quality, cough, and drug use.MethodsParticipants (n = 1198) were recruited through online surveys posted to social media sites with a monetary incentive. Participants were grouped by inhalant use, with 8% e-cigarette users, 12% conventional tobacco users, 30% dual users, and 51% non-smokers/non-vapers.ResultsDual use of e-cigarettes and conventional tobacco was associated with increased sleep latency relative to non-smokers/non-vapers (p = 0.012). Dual use was also associated with a higher reporting of cough (p = 0.034), as well as increased marijuana (p < 0.001) and cocaine usage (p < 0.001).DiscussionDual use is associated with longer sleep latency, suggesting that the shared component nicotine may be a driver. Because sleep broadly impacts multiple aspects of human health, defining the effects of e-cigarettes and vaping devices on sleep is critical to further our understanding of the effects of vaping on health.

Short-term trigeminal neuromodulation does not alter sleep latency in healthy subjects: a pilot study

2017 ◽  
Vol 39 (1) ◽  
pp. 145-147 ◽  
Author(s):  
Francesca Ginatempo ◽  
Pietro Pirina ◽  
Francesco Melis ◽  
Franca Deriu
Keyword(s):  
Pilot Study ◽  
Healthy Subjects ◽  
Sleep Latency ◽  
Short Term

223 Sleep Duration and Sleep Quality in Chronic Cannabis Users and Non-Users

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A89-A89
Author(s):  
Caroline Tse ◽  
Alicia Stewart ◽  
Omar Ordaz-Johnson ◽  
Maya Herzig ◽  
Jacqueline Gagnon ◽  
...  
Keyword(s):  
Pilot Study ◽  
Sleep Quality ◽  
Sleep Duration ◽  
Sleep Latency ◽  
Sleep Onset ◽  
The United States ◽  
Cannabis Use ◽  
Sleep Diary ◽  
Random Factor ◽  
Time In Bed

Abstract Introduction Cannabis use is on the rise in the United States, with 10% of adults reporting cannabis use in the past 30 days. Users commonly report consuming cannabis to improve sleep despite the lack of research that supports an association between cannabis use and sleep. In this pilot study we sought to examine objective measures of sleep duration and sleep quality among non- and chronic-cannabis users, and any patterns in relation to the time since consumption of cannabis. Methods Chronic cannabis users (cannabis used 2 or more times/week) and non-users provided up to 2-weeks of actigraphy (ActiGraph wGT3X-BT), worn on the wrist and verified by sleep diary. Chronic cannabis users also reported the date, time, amount, and route of their cannabis use. Mixed-effects models with participant as a random factor were used to examine: 1) the relationship between daily sleep parameters in cannabis non-users vs. users; and 2) the elapsed time between cannabis use and time in bed in chronic cannabis users. Results Chronic cannabis users (n=6) and non-users (n=7) collectively provided 151 nights of sleep. Participant characteristics (38.5% female; age, 25.8 years ± 4 years; BMI, 23.4 kg/m2 ± 3.4 kg/m2) did not significantly differ between groups. Cannabis use was associated with decreased total sleep time (measured in hours, ß=-0.58, p&lt;0.001) and increased wake after sleep onset (WASO, ß=32.79, p=0.005), but not with the number of awakenings (ß=6.02, p=0.068). Among chronic cannabis users, cannabis use within two hours of bed was associated with increased sleep latency compared to use greater than two hours (ß=6.66, p=0.026). There was no association between time of cannabis use and WASO (p=0.621) or the number of awakenings (p=0.617). Conclusion In this pilot study of objectively measured sleep, we found that chronic cannabis use compared to non-use is associated with decreased sleep duration of otherwise healthy adults. Cannabis used closer to bedtime is associated with increased sleep latency. Additional studies that are able to assess the mode and dosage of use are needed to further understand the effects of cannabis and its components on sleep. Support (if any) KL2TR002370, AASM, Oregon Institute of Occupational Health Sciences

CAN META-COGNITIVE OBSERVATION BE USED IN THE TREATMENT OF INSOMNIA? A PILOT STUDY OF A COGNITIVE-EMOTIONAL SELF-OBSERVATION TASK

2002 ◽  
Vol 30 (2) ◽  
pp. 233-236 ◽  
Author(s):  
Lars-Gunnar Lundh ◽  
Henrik Hindmarsh
Keyword(s):  
Pilot Study ◽  
Cognitive Processes ◽  
Sleep Latency ◽  
Total Sleep Time ◽  
Cognitive Activity ◽  
Sleep Time ◽  
Sleep Efficiency ◽  
Sleep Diary ◽  
Control Group

Meta-cognitive observation is a kind of cognitive activity that may serve to interrupt worry, rumination, and other kinds of sleep-interfering cognitive processes. In a pilot study, 40 individuals recorded their sleep on a sleep diary during one week (the baseline week) and were then administered a meta-cognitive observation task to use at bed-time during a second week (“the treatment week”). Consistent with the hypothesis, the participants showed a decreased sleep latency during the treatment week compared to the baseline week, and also an increased total sleep time and an improved sleep efficiency. The lack of a control group (i.e., a group who kept a sleep diary for both weeks, without any meta-cognitive observation task), however, precludes any definite conclusion with regard to the effects of the meta-cognitive observation task. It is suggested that meta-cognitive observation tasks should be tested in controlled studies.

Cranial Manipulation Can Alter Sleep Latency and Sympathetic Nerve Activity in Humans: A Pilot Study

2005 ◽  
Vol 11 (1) ◽  
pp. 103-108 ◽  
Author(s):  
Michael J. Cutler ◽  
B. Shane Holland ◽  
Bernard A. Stupski ◽  
Russell G. Gamber ◽  
Michael L. Smith
Keyword(s):  
Pilot Study ◽  
Sympathetic Nerve ◽  
Sympathetic Nerve Activity ◽  
Sleep Latency ◽  
Nerve Activity

Ciliary coordination in newt lung cells requires microtubule-based linkages between basal bodies: A correlative light and EM study

1992 ◽  
Vol 50 (1) ◽  
pp. 570-571
Author(s):  
Robert Hard ◽  
Gerald Rupp ◽  
Matthew L. Withiam-Leitch ◽  
Lisa Cardamone
Keyword(s):  
Basal Body ◽  
Untreated Control ◽  
Beat Frequency ◽  
Primary Cultures ◽  
Living Cells ◽  
Power Stroke ◽  
Ultrastructural Changes ◽  
Lung Cells ◽  
Basal Bodies ◽  
Ciliated Cells

In a coordinated field of beating cilia, the direction of the power stroke is correlated with the orientation of basal body appendages, called basal feet. In newt lung ciliated cells, adjacent basal feet are interconnected by cold-stable microtubules (basal MTs). In the present study, we investigate the hypothesis that these basal MTs stabilize ciliary distribution and alignment. To accomplish this, newt lung primary cultures were treated with the microtubule disrupting agent, Colcemid. In newt lung cultures, cilia normally disperse in a characteristic fashion as the mucociliary epithelium migrates from the tissue explant. Four arbitrary, but progressive stages of dispersion were defined and used to monitor this redistribution process. Ciliaiy beat frequency, coordination, and dispersion were assessed for 91 hrs in untreated (control) and treated cultures. When compared to controls, cilia dispersed more rapidly and ciliary coordination decreased markedly in cultures treated with Colcemid (2 mM). Correlative LM/EM was used to assess whether these effects of Colcemid were coupled to ultrastructural changes. Living cells were defined as having coordinated or uncoordinated cilia and then were processed for transmission EM.

Role of the Cilia Membrane in Control of Microtubule Sliding

1980 ◽  
Vol 38 ◽  
pp. 612-615
Author(s):  
Edna S. Kaneshiro
Keyword(s):  
Control Mechanism ◽  
Beat Frequency ◽  
Surface Membrane ◽  
Ciliary Membrane ◽  
Ciliary Beating ◽  
Ciliary Reversal ◽  
Voltage Dependent ◽  
Reversal Mechanism ◽  
And Function

It is currently believed that ciliary beating results from microtubule sliding which is restricted in regions to cause bending. Cilia beat can be modified to bring about changes in beat frequency, cessation of beat and reversal in beat direction. In ciliated protozoans these modifications which determine swimming behavior have been shown to be related to intracellular (intraciliary) Ca2+ concentrations. The Ca2+ levels are in turn governed by the surface ciliary membrane which exhibits increased Ca2+ conductance (permeability) in response to depolarization. Mutants with altered behaviors have been isolated. Pawn mutants fail to exhibit reversal of the effective stroke of ciliary beat and therefore cannot swim backward. They lack the increased inward Ca2+ current in response to depolarizing stimuli. Both normal and pawn Paramecium made leaky to Ca2+ by Triton extrac¬tion of the surface membrane exhibit backward swimming only in reactivating solutions containing greater than IO-6 M Ca2+ Thus in pawns the ciliary reversal mechanism itself is left operational and only the control mechanism at the membrane is affected. The topographic location of voltage-dependent Ca2+ channels has been identified as a component of the ciliary mem¬brane since the inward Ca2+ conductance response is eliminated by deciliation and the return of the response occurs during cilia regeneration. Since the ciliary membrane has been impli¬cated in the control of Ca2+ levels in the cilium and therefore is the site of at least one kind of control of microtubule sliding, we have focused our attention on understanding the structure and function of the membrane.

Pilot study on criteria in cavity preparation-facts or artifacts?

1973 ◽  
Vol 37 (11) ◽  
pp. 27-31 ◽  
Author(s):  
G Salvendy ◽  
WM Hinton ◽  
GW Ferguson ◽  
PR Cunningham
Keyword(s):  
Pilot Study ◽  
Cavity Preparation

A Pilot Study of Early Storybook Reading With Babies With Hearing Loss

2019 ◽  
Vol 62 (9) ◽  
pp. 3397-3412
Author(s):  
Michelle I. Brown ◽  
David Trembath ◽  
Marleen F. Westerveld ◽  
Gail T. Gillon
Keyword(s):  
Hearing Loss ◽  
Pilot Study ◽  
Visual Analysis ◽  
Single Case ◽  
Eye Contact ◽  
Preliminary Evidence ◽  
Storybook Reading ◽  
Book Selection ◽  
Turn Taking ◽  
Parent Child

Purpose This pilot study explored the effectiveness of an early storybook reading (ESR) intervention for parents with babies with hearing loss (HL) for improving (a) parents' book selection skills, (b) parent–child eye contact, and (c) parent–child turn-taking. Advancing research into ESR, this study examined whether the benefits from an ESR intervention reported for babies without HL were also observed in babies with HL. Method Four mother–baby dyads participated in a multiple baseline single-case experimental design across behaviors. Treatment effects for parents' book selection skills, parent–child eye contact, and parent–child turn-taking were examined using visual analysis and Tau-U analysis. Results Statistically significant increases, with large to very large effect sizes, were observed for all 4 participants for parent–child eye contact and parent–child turn-taking. Limited improvements with ceiling effects were observed for parents' book selection skills. Conclusion The findings provide preliminary evidence for the effectiveness of an ESR intervention for babies with HL for promoting parent–child interactions through eye contact and turn-taking.

Sign in / Sign up

Export Citation Format

Share Document