Music stimuli in mindfulness meditation: Comparison of musician and non-musician responses

2020 ◽  
pp. 030573562090133
Author(s):  
Eugenia Hernandez-Ruiz ◽  
Abbey L Dvorak ◽  
Kevin Weingarten
Keyword(s):  
Repeated Measures ◽  
Mindfulness Meditation ◽  
Mixed Effects ◽  
Analysis Of Covariance ◽  
Auditory Stimuli ◽  
Clinical Implications ◽  
Music Intervention ◽  
Group Status ◽  
Repeated Measures Design ◽  
Repeated Measures Analysis

The purpose of this study was to compare the effectiveness of and preference for different auditory stimuli on mindfulness meditation in musicians. A second purpose was to compare musician responses with non-musician responses from a previous study. A repeated-measures design exposed participants to four auditory stimuli of increased complexity. Participants ( N = 49) were undergraduate musicians with limited mindfulness experience. Data included absorption in music, mindfulness, and preference and usefulness of auditory stimuli. A repeated-measures analysis of covariance, with absorption of music as a covariate, found no significant differences between stimuli on mindfulness meditation according to musicians. Friedman’s analyses of variance indicated that musician rankings of usefulness and preference were significantly different among conditions. Both musicians and non-musicians ranked Melody and Harmony conditions as most preferred and most useful for mindfulness meditation. A mixed effects model with both groups indicated not only a significant effect of auditory stimuli on mindfulness but also interaction due to group status. A significant result was only obtained when the covariate was not considered. Absorption in music scores between groups was significantly higher for musicians than non-musicians. These outcomes support the hypothesis that absorption in music and music expertise may mediate the effect of a music intervention. Clinical implications are discussed.

Comparison of music stimuli to support mindfulness meditation

2019 ◽  
pp. 030573561987849 ◽  
Author(s):  
Abbey L Dvorak ◽  
Eugenia Hernandez-Ruiz
Keyword(s):  
Repeated Measures ◽  
Mindfulness Meditation ◽  
Analysis Of Covariance ◽  
Auditory Stimuli ◽  
Harmonic Progression ◽  
Repeated Measures Design ◽  
Significant Difference ◽  
Within Subjects ◽  
Mindful Attention Awareness Scale ◽  
Post Hoc

The purpose of this study was to compare the effectiveness of and preference for different auditory stimuli in supporting mindfulness meditation. Undergraduate non-musicians ( N = 57) listened to four different auditory stimuli guiding them in a mindfulness meditation: script only (i.e., Script), steady beat (i.e., Beat), beat and harmonic progression (i.e., Harmony), and beat, harmony, and melody (i.e., Melody). This study used a within-subjects repeated-measures design with the four conditions counterbalanced and randomized across participants. Participants rated responses using the Mindful Attention Awareness Scale (MAAS), completed the Absorption in Music Scale (AIMS), and ranked auditory stimuli according to preference and usefulness for mindfulness meditation. A repeated-measures analysis of covariance (ANCOVA) on the MAAS scores, using the AIMS as a covariate, indicated no statistically significant difference between auditory stimuli. However, with the AIMS removed, the analysis revealed significant differences between stimuli, indicating that levels of absorption in music may moderate participants’ responses to auditory stimuli for mindfulness meditation. Friedman analyses of variance (ANOVAs) and post hoc analyses indicated that participant rankings of usefulness and preference were significantly different among conditions, with the Melody and Harmony conditions ranked highest.

Effects of Vaporized Perfluorocarbon on Pulmonary Blood Flow and Ventilation/Perfusion Distribution in a Model of Acute Respiratory Distress Syndrome

2001 ◽  
Vol 95 (6) ◽  
pp. 1414-1421 ◽  
Author(s):  
Matthias Hübler ◽  
Jennifer E. Souders ◽  
Erin D. Shade ◽  
Nayak L. Polissar ◽  
Carmel Schimmel ◽  
...  
Keyword(s):  
Blood Flow ◽  
Oleic Acid ◽  
Gas Exchange ◽  
Lung Injury ◽  
Repeated Measures ◽  
Pulmonary Blood Flow ◽  
Analysis Of Covariance ◽  
Inert Gas ◽  
Low Flow ◽  
Repeated Measures Analysis

Background Perfluorocarbon (PFC) liquids are known to improve gas exchange and pulmonary function in various models of acute respiratory failure. Vaporization has been recently reported as a new method of delivering PFC to the lung. Our aim was to study the effect of PFC vapor on the ventilation/perfusion (VA/Q) matching and relative pulmonary blood flow (Qrel) distribution. Methods In nine sheep, lung injury was induced using oleic acid. Four sheep were treated with vaporized perfluorohexane (PFX) for 30 min, whereas the remaining sheep served as control animals. Vaporization was achieved using a modified isoflurane vaporizer. The animals were studied for 90 min after vaporization. VA/Q distributions were estimated using the multiple inert gas elimination technique. Change in Qrel distribution was assessed using fluorescent-labeled microspheres. Results Treatment with PFX vapor improved oxygenation significantly and led to significantly lower shunt values (P < 0.05, repeated-measures analysis of covariance). Analysis of the multiple inert gas elimination technique data showed that animals treated with PFX vapor demonstrated a higher VA/Q heterogeneity than the control animals (P < 0.05, repeated-measures analysis of covariance). Microsphere data showed a redistribution of Qrel attributable to oleic acid injury. Qrel shifted from areas that were initially high-flow to areas that were initially low-flow, with no difference in redistribution between the groups. After established injury, Qrel was redistributed to the nondependent lung areas in control animals, whereas Qrel distribution did not change in treatment animals. Conclusion In oleic acid lung injury, treatment with PFX vapor improves gas exchange by increasing VA/Q heterogeneity in the whole lung without a significant change in gravitational gradient.

scholarly journals Analyzing randomized controlled interventions: Three notes for applied linguists

2015 ◽  
Vol 5 (1) ◽  
pp. 135-152 ◽  
Author(s):  
Jan Vanhove
Keyword(s):  
Repeated Measures ◽  
Intervention Studies ◽  
Mixed Effects ◽  
Analysis Of Covariance ◽  
Cluster Randomization ◽  
Repeated Measures Anova ◽  
Randomized Controlled ◽  
Mixed Effects Modeling ◽  
Statistical Formalism ◽  
Relevant Covariates

I discuss three common practices that obfuscate or invalidate the statistical analysis of randomized controlled interventions in applied linguistics. These are (a) checking whether randomization produced groups that are balanced on a number of possibly relevant covariates, (b) using repeated measures ANOVA to analyze pretest-posttest designs, and (c) using traditional significance tests to analyze interventions in which whole groups were assigned to the conditions (cluster randomization). The first practice is labeled superfluous, and taking full advantage of important covariates regardless of balance is recommended. The second is needlessly complicated, and analysis of covariance is recommended as a more powerful alternative. The third produces dramatic inferential errors, which are largely, though not entirely, avoided when mixed-effects modeling is used. This discussion is geared towards applied linguists who need to design, analyze, or assess intervention studies or other randomized controlled trials. Statistical formalism is kept to a minimum throughout.

scholarly journals Vocal Function and Upper Airway Thermoregulation in Five Different Environmental Conditions

2014 ◽  
Vol 57 (1) ◽  
pp. 16-25 ◽  
Author(s):  
Mary J. Sandage ◽  
Nadine P. Connor ◽  
David D. Pascoe
Keyword(s):  
Relative Humidity ◽  
Repeated Measures ◽  
Upper Airway ◽  
Threshold Pressure ◽  
Vocal Function ◽  
Repeated Measures Design ◽  
Repeated Measures Analysis ◽  
C 23 ◽  
Phonation Threshold Pressure ◽  
Perceived Phonatory Effort

Purpose Phonation threshold pressure and perceived phonatory effort were hypothesized to increase and upper airway temperature to decrease following exposure to cold and/or dry air. Greater changes were expected with mouth versus nose breathing. Method In a within-participant repeated measures design, 15 consented participants (7 men, 8 women) completed 20-min duration trials to allow for adequate thermal equilibration for both nose and mouth breathing in 5 different environments: 3 temperatures (°C) matched for relative humidity (% RH), cold (15 °C, 40% RH), thermally neutral (25 °C, 40% RH), and hot (35 °C, 40% RH); and 2 temperatures with variable relative humidity to match vapor pressure for the neutral environment (25 °C, 40% RH), cold (15 °C, 74% RH) and hot (35 °C, 23% RH). Following each equilibration trial, measures were taken in this order: upper airway temperature (transnasal thermistor probe), phonation threshold pressure, and perceived phonatory effort. Results Data were analyzed using repeated measures analysis of variance, and no significant differences were established. Conclusions The study hypotheses were not supported. Findings suggest that the upper airway is tightly regulated for temperature when challenged by a realistic range of temperature and relative humidity environments. This is the first study of its kind to include measurement of upper airway temperature in conjunction with measures of vocal function.

Cerebrovascular Dynamics With Head-of-Bed Elevation in Patients With Mild or Moderate Vasospasm After Aneurysmal Subarachnoid Hemorrhage

2006 ◽  
Vol 15 (2) ◽  
pp. 206-216 ◽  
Author(s):  
Patricia A. Blissitt ◽  
Pamela H. Mitchell ◽  
David W. Newell ◽  
Susan L. Woods ◽  
Basia Belza
Keyword(s):  
Blood Flow ◽  
Subarachnoid Hemorrhage ◽  
Repeated Measures ◽  
Aneurysmal Subarachnoid Hemorrhage ◽  
Bed Rest ◽  
P Values ◽  
Repeated Measures Design ◽  
Bed Elevation ◽  
Repeated Measures Analysis ◽  
Head Of Bed Elevation

• Background In patients with aneurysmal subarachnoid hemorrhage, elevation of the head of the bed during vasospasm has been limited in an attempt to minimize vasospasm or its sequelae or both. Consequently, some patients have remained on bed rest for weeks. • Objectives To determine how elevations of the head of the bed of 20° and 45° affect cerebrovascular dynamics in adult patients with mild or moderate vasospasm after aneurysmal subarachnoid hemorrhage and to describe the response of mild or moderate vasospasm to head-of-bed elevations of 20° and 45° with respect to variables such as grade of subarachnoid hemorrhage and degree of vasospasm. • Methods A within-patient repeated-measures design was used. The head of the bed was positioned in the sequence of 0°-20°-45°-0° in 20 patients with mild or moderate vasospasm between days 3 and 14 after aneurysmal subarachnoid hemorrhage. Continuous transcranial Doppler recordings were obtained for 2 to 5 minutes after allowing approximately 2 minutes for stabilization in each position. • ResultsNo patterns or trends indicated that having the head of the bed elevated increases vasospasm. As a group, there were no significant differences within patients at the different positions of the head of the bed. Utilizing repeated-measures analysis of variance, P values ranged from .34 to .97, well beyond .05. No neurological deterioration occurred. • Conclusions In general, elevation of the head of the bed did not cause harmful changes in cerebral blood flow related to vasospasm.

Music and mindfulness meditation: Comparing four music stimuli composed under similar principles

2020 ◽  
pp. 030573562096979
Author(s):  
Eugenia Hernandez-Ruiz ◽  
Abbey L Dvorak
Keyword(s):  
Repeated Measures ◽  
Mixed Model ◽  
Mindfulness Meditation ◽  
New Music ◽  
Original Music ◽  
Evidence Based ◽  
Supporting Evidence ◽  
Significant Preference ◽  
Repeated Measures Analysis ◽  
Significant Difference

Mindfulness meditation has frequently used sound and music as an important component. However, research on effective music stimuli is scarce. After a series of studies evaluating the most effective, useful, and preferred auditory stimuli, we were interested in exploring whether these effective musical features were transferred to new music. In this study, we evaluate our original music stimuli with three new stimuli composed under similar principles. Non-musician and musician participants ( N = 114) in a multisite study evaluated their mindfulness state after listening to four music stimuli, and rated their usefulness and preference. Results from a repeated-measures analysis of variance (ANOVA) at each site indicated no significant difference in mindfulness effectiveness. Friedman’s ANOVAs for the usefulness of the music stimuli showed similar non-significant results in both sites. A mixed model among sites did not show significant differences among groups. Preference rankings were not significantly different for non-musicians, but musicians did show a statistically significant preference of the Original stimuli over Stimulus 2, probably due to sound quality. These results indicate the feasibility of transferring previously researched and effective musical features to new stimuli. Identifying the effective “active ingredients” of music interventions may be one way of supporting evidence-based practice in music therapy.

Aerobic Fitness and Emotional Arousal: A Critical Attempt at Replication

1981 ◽  
Vol 48 (3) ◽  
pp. 911-918 ◽  
Author(s):  
Jeffrey D. Zimmerman ◽  
Margaret Fulton
Keyword(s):  
Trait Anxiety ◽  
Repeated Measures ◽  
Psychosocial Stress ◽  
Electrodermal Activity ◽  
Heart Rate Recovery ◽  
Analysis Of Covariance ◽  
State Trait Anxiety Inventory ◽  
Repeated Measures Analysis ◽  
Two Indices ◽  
Statistical Results

This study was an attempt to replicate the findings of earlier research in which conclusions were based on a questionable interpretation of statistical results. A 2 × 2 repeated-measures analysis of covariance did not confirm, as had been previously reported, greater heart-rate recovery for 20 aerobically fit subjects as opposed to 20 unfit subjects following psychosocial stress. Two indices of electrodermal activity and State-Trait Anxiety Inventory responses also were utilized. Only the comparison between groups for Trait Anxiety was statistically significant.

Female sex hormones in men with migraine

Neurology ◽  
2018 ◽  
Vol 91 (4) ◽  
pp. e374-e381 ◽  
Author(s):  
Willebrordus P.J. van Oosterhout ◽  
Guus G. Schoonman ◽  
Erik W. van Zwet ◽  
Olaf M. Dekkers ◽  
Gisela M. Terwindt ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Free Testosterone ◽  
Analysis Of Covariance ◽  
Androgen Deficiency ◽  
Female Sex Hormones ◽  
Repeated Measures Analysis ◽  
17Β Estradiol ◽  
Migraine Group ◽  
Aging Males Symptoms

ObjectiveTo assess the role of estradiol and testosterone in men with migraine.MethodsWe measured 17β-estradiol (E2) and calculated free testosterone (Tf) in serum of 17 medication-free men with migraine and 22 men without migraine group-matched for age and body mass index (BMI), targeted at 20 to 28 kg/m2. Blood was sampled on a single, for migraineurs interictal, day at 9 am, 12 pm, 3 pm, and 6 pm. Migraineurs were subsequently measured 3 to 4 times daily until an attack occurred. Clinical androgen deficiency was assessed with the Androgen Deficiency of Ageing Men questionnaire and the Aging Males' Symptoms (AMS) scale. We analyzed interictal data (mean ± standard error) with repeated-measures analysis of covariance and longitudinal data by generalized estimated equations models.ResultsCompared to controls, men with migraine had a lower interictal Tf/E2 ratio (3.9 ± 0.4 vs 5.0 ± 0.3, p = 0.03) due to higher E2 (96.8 ± 6.1 vs 69.1 ± 5.6 pmol/L, p = 0.001) and similar Tf (357.5 ± 21.4 vs 332.6 ± 18.7 pmol/L, p = 0.35) levels. Preictal Tf levels were increased in men with migraine reporting premonitory symptoms (p = 0.03). Men with migraine more frequently reported symptoms of androgen deficiency (11 of 18 [61.1%] vs 6 of 22 [27.3%], p = 0.031), which were also more frequently severe (p = 0.006); their age- and BMI-adjusted AMS scores were higher (27.0 ± 1.2 vs 21.0 ± 1.0, p = 0.002).ConclusionsIn this study, nonobese men with migraine exhibited increased levels of the sex hormone estradiol and showed clinical evidence of relative androgen deficiency. The role of estradiol in modulating migraine susceptibility and activity in men deserves further investigations.

Effect of Implant Design on Initial Stability of Tapered Implants

2009 ◽  
Vol 35 (3) ◽  
pp. 130-135 ◽  
Author(s):  
Linus Chong ◽  
Ahmed Khocht ◽  
Jon B. Suzuki ◽  
John Gaughan
Keyword(s):  
Repeated Measures ◽  
Primary Stability ◽  
Analysis Of Covariance ◽  
Implant Design ◽  
Insertion Depth ◽  
Weak Association ◽  
Initial Stability ◽  
Repeated Measures Analysis ◽  
Different Depths ◽  
Strength Of Association

Abstract Implant design is one of the parameters for achieving successful primary stability. This study aims to examine the effect of a self-tapping blades implant design on initial stability in tapered implants. Polyurethane blocks of different densities were used to simulate different bone densities. The two different implant designs included one with self-tapping blades and one without self-tapping blades. Implants were placed at 3 different depths: apical third, middle third, and fully inserted at 3 different densities of polyurethane blocks. A resonance frequency (RF) analyzer was then used to measure stability of the implants. Repeated-measures analysis of variance was used to examine the effect of implant design, insertion depth, and block density on RF. Analysis of covariance was used to examine the strength of association between RF and the aforementioned factors. In both medium-density (P = .017) and high-density (P = .002) blocks, fully inserted non-self-tapping implants showed higher initial stability than self-tapping implants. No differences were noted between the 2 implant designs that were not fully inserted. The highest strength of association was with insertion depth (standardized beta [std β] = −0.60, P = .0001), followed by block density (std β = −0.15, P = .0002). Implant design showed a weak association (std β = −0.07, P = .09). In conclusion, fully inserted implants without self-tapping blades have higher initial stability than implants with self-tapping blades. However, the association strength between implant design and initial stability is less relevant than other factors, such as insertion depth and block density. Thus, if bone quality and quantity are optimal, they may compensate for design inadequacy.

Effects of Predictable and Unpredictable Auditory Stimuli on Selective Attention

1993 ◽  
Vol 77 (1) ◽  
pp. 155-162
Author(s):  
Derick M. Kiger
Keyword(s):  
High School Students ◽  
Selective Attention ◽  
Repeated Measures ◽  
Color Word ◽  
Auditory Stimuli ◽  
Normal Male ◽  
Normal Female ◽  
School Students ◽  
Repeated Measures Analysis ◽  
Word Task

6 normal male and 10 normal female high school students completed two versions of the Stroop Color-Word Task in the presence of predictable and unpredictable auditory stimuli. Selective attention was hypothesized to be facilitated by predictable auditory stimuli and unaffected or hindered by unpredictable auditory stimuli. A one-factor repeated-measures analysis of variance showed selective attention was facilitated significantly by the predictable auditory stimuli on a paced version of the Stroop Color-Word Task.

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