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Nevin Manimala Statistics

Acceptability and feasibility of the clinician-administered PTSD Scale for DSM-5 training simulator

Psychol Trauma. 2025 Jul 17. doi: 10.1037/tra0001998. Online ahead of print.

ABSTRACT

OBJECTIVE: The Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) is regarded as the state-of-the-art method for diagnosing Diagnostic and Statistical Manual of Mental Disorders, fifth edition, posttraumatic stress disorder (PTSD). To address the high demand for training in the CAPS-5, we developed the CAPS-5 Training Simulator (CAPSim), an online program in which learners administer the CAPS-5 to lifelike virtual PTSD patients and receive feedback on their performance.

METHOD: We created three virtual standardized PTSD patients who respond verbally to learners’ spoken or typed prompts. Complexity and availability of in-course feedback varied across patients. The program was then made available to interested learners, and data on program use and user performance were collected to determine acceptability and feasibility.

RESULTS: Over the first 4 years of the program, 4,484 users accessed the training. Of those who started the course (N = 3,022), most (83.6%) completed it. Although CAPS-5 familiarity varied, more than half of the users (58.3%) reported being moderately familiar with the CAPS-5 at baseline. Administration and scoring accuracy varied by virtual patient and by CAPS-5 item, with overall accuracy ranging from near perfect to 77.1% incorrect. Whereas the initial symptom prompts were delivered verbatim 76.2% of the time, in-sequence and additional required prompts were administered with less accuracy (46.0% and 39.2%, respectively).

CONCLUSIONS: The CAPSim is an innovative method for training CAPS-5 learners with various skill levels. The CAPSim can identify specific administrative and scoring challenges and provide personalized feedback in a manner that appears acceptable to learners. The CAPSim has promise to meet the high demand for CAPS-5 training. (PsycInfo Database Record (c) 2025 APA, all rights reserved).

PMID:40674018 | DOI:10.1037/tra0001998

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Nevin Manimala Statistics

Do expressive suppression and cognitive reappraisal affect memory?

Emotion. 2025 Jul 17. doi: 10.1037/emo0001562. Online ahead of print.

ABSTRACT

A widely cited idea in the emotion regulation literature holds that expressive suppression impairs memory while cognitive reappraisal has no effect on or may enhance memory relative to control. However, empirical evidence for these effects has been inconsistent. To provide a definitive test, we conducted four well-powered experiments with more than 4,000 participants to examine the effects of reappraisal and suppression of negative emotion (Experiments 1 and 3) and positive emotion (Experiments 2 and 4) on verbal and nonverbal memory. Results showed no consistent evidence for an effect of reappraisal on either type of memory, though expressive suppression of negative emotion consistently impaired verbal memory relative to control. Obtained effect sizes were small given successful emotion regulation manipulations and adequate statistical power (ds < 0.11). Conclusions are constrained to English-speaking online samples, and may not generalize to other types of memory. These findings highlight the need to systematically test widely accepted assumptions as a field. (PsycInfo Database Record (c) 2025 APA, all rights reserved).

PMID:40674016 | DOI:10.1037/emo0001562

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Nevin Manimala Statistics

Prenatal stress and infant sleep: The role of maternal emotional distress and sensitive behavior

J Fam Psychol. 2025 Jul 17. doi: 10.1037/fam0001378. Online ahead of print.

ABSTRACT

The association between prenatal stress factors and infant sleep has been examined in the literature, however, the mechanisms explaining this association remain unclear. The present study examined the indirect association between prenatal stress and infant sleep problems via maternal emotional distress and maternal sensitivity in distress-eliciting context in a three-wave longitudinal study that followed 299 mothers from pregnancy until the infants were 6 months old. Expectant mothers reported demographics, prenatal stress (i.e., stressful life events, neighborhood violence, income) and emotional distress (i.e., depressive symptoms, trait anxiety, emotion regulation difficulties, and personality characteristics) Prior to the 2-month laboratory visit, mothers reported their depressive symptoms and state anxiety. During the 2- and 6-month laboratory visits, maternal sensitivity in distress-eliciting context was assessed during the still-face episode of the still-face paradigm. Mothers reported infant sleep problems at 6 months. Consistent with hypotheses, prenatal stress predicted higher perinatal emotional distress which in turn was significantly associated with lower maternal sensitivity. Further, maternal sensitivity was significantly associated with fewer infant sleep problems. The indirect pathway from prenatal stress to infant sleep problems via elevated maternal emotional distress and compromised maternal sensitivity was statistically significant. The findings affirm the need for policies and interventions to better support mothers exposed to prenatal stress and/or experiencing emotional distress to ensure optimal infant sleep outcomes. (PsycInfo Database Record (c) 2025 APA, all rights reserved).

PMID:40674011 | DOI:10.1037/fam0001378

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Nevin Manimala Statistics

The social ambivalence and disease model: Childhood trauma as an antecedent factor linking spousal ambivalence to inflammation

Health Psychol. 2025 Jul 17. doi: 10.1037/hea0001532. Online ahead of print.

ABSTRACT

OBJECTIVE: Ambivalence in relationships is related to health-relevant biological outcomes. However, the antecedent processes that contribute to this association are unknown. The primary aim of this study was to test the prediction of the social ambivalence and disease model, which highlights the potential role of childhood trauma as an antecedent factor linking spousal ambivalence to inflammation.

METHOD: A sample of 107 heterosexual couples who had been married for at least 10 years was recruited. Participants completed the social relationship index to assess spousal ambivalence and the Childhood Trauma Questionnaire. Blood was drawn to determine levels of high-sensitivity C-reactive protein (hs-CRP) and interleukin-6 as measures of inflammation.

RESULTS: Consistent with the social ambivalence and disease model, there was a significant indirect effect in which childhood trauma was related to greater spousal ambivalence which in turn was associated with higher hs-CRP levels. No evidence for the statistical mediational model was found for interleukin-6.

CONCLUSIONS: These results highlight the potential role of childhood trauma as an antecedent factor linking spousal ambivalence to hs-CRP. It also highlights potential pathways that might be targeted for interventions pending further work. (PsycInfo Database Record (c) 2025 APA, all rights reserved).

PMID:40673997 | DOI:10.1037/hea0001532

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Nevin Manimala Statistics

Z-curve analysis of studies involving moderation published in leading health psychology journals

Health Psychol. 2025 Jul 17. doi: 10.1037/hea0001534. Online ahead of print.

ABSTRACT

OBJECTIVE: To use a recently developed methodology, z-curve analysis, to estimate the likelihood of replication success for recently published studies in three leading health psychology journals with high impact factors that involved some form of a moderation analysis.

METHOD: Utilizing a z-curve analysis, we estimated the replicability, false positives, publication bias, and “file drawer ratio” of 124 independent tests of moderation with significant results published in recent issues of three leading journals in the field of health psychology. z-curve analyses were conducted for all the journals combined and each journal separately.

RESULTS: The distribution of z scores derived from all 124 studies indicated that the estimation of the expected replication rate and false positive ratio were 46.0% and 8.3%, respectively. The estimated file drawer ratio was 1.6, indicating that for every statistically significant interaction reported, nearly two nonsignificant interactions go unreported. In comparing the three journals, Health Psychology had the best overall results (expected replication rate = 52.3%, Soric false discovery rate = 4.8%, file drawer ration = 0.9). Of the 124 studies examined, 23 conducted power analyses to determine sample size, seven preregistered hypotheses, and three conducted a replication analysis.

CONCLUSION: Results suggest a need for change regarding both the methodological practices used and the publication processes in place to improve the validity and efficacy of research regarding moderation effects in behavioral medicine-this includes preregistering hypotheses, using formalized methods to determine sample size, and utilizing attention checks. Journals can encourage or require these practices and foster acceptance of nonsignificant results to limit publication biases. (PsycInfo Database Record (c) 2025 APA, all rights reserved).

PMID:40673996 | DOI:10.1037/hea0001534

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Nevin Manimala Statistics

One-year outcomes of the drug eluting stent in the treatment of severe vertebral artery ostium stenosis: single-center experience

Neurosurg Rev. 2025 Jul 17;48(1):571. doi: 10.1007/s10143-025-03726-4.

ABSTRACT

BACKGROUND AND PURPOSE: The Maurora stent (Drug eluting stent) is the first rapamycin-eluting vertebral artery stent system, and currently, there are no studies on the one-year outcomes of the Maurora stent in the treatment of severe vertebral artery ostium stenosis. Therefore, this study utilizes Cumulative sum (CUSUM) curve analysis to evaluate the one-year prognosis and restenosis rate of the Maurora stent in patients with severe stenosis at the vertebral artery origin.

METHODS: All patients were arranged in chronological order according to the sequence of their surgeries. CUSUM analysis was employed to assess the surgical learning curve. The point at which the CUSUM learning curve begins to descend marks the number of cases required to achieve procedural proficiency; this point delineates the transition from the initial stable phase to the mature phase. Postoperative Modified Rankin Scale(mRS) and NIHSS scores are visualized using histograms.

RESULTS: Ultimately, 38 patients met the inclusion and exclusion criteria and were included in the analysis. At the 1-year follow-up, 89.47% of patients had an MRS score of 0, showing a statistically significant improvement compared to preoperative values (p < 0.05). The MRS scores at 1year post-procedure showed a statistically significant difference between the mature and stable groups (P < 0.05).

CONCLUSIONS: The study showed that the Maurora stent (Drug eluting stent) is safe and effective in treating severe vertebral artery ostium stenosis, offering significant clinical value.

PMID:40673988 | DOI:10.1007/s10143-025-03726-4

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Nevin Manimala Statistics

Characterizing the HLA region’s genetic architecture through local heritability and correlation analyses across complex traits in diverse ancestries

Hum Genet. 2025 Jul 17. doi: 10.1007/s00439-025-02763-9. Online ahead of print.

ABSTRACT

The human leukocyte antigen (HLA) region is a critical genetic locus associated with diverse complex traits, yet its intricate genetic architecture poses significant challenges to elucidation. Leveraging recent advances in regional heritability estimation and extensive datasets from the Million Veteran Program (MVP), we conducted a comprehensive investigation of the HLA region’s genetic architecture. This involved heritability estimation and genetic correlation analyses within the HLA region across European Americans (EAs) and African Americans (AAs). Our analyses demonstrated that in EAs, the HLA region exhibited significantly greater local heritability than other genomic regions of comparable length for lipid metabolic traits (triglycerides [TG], total cholesterol [TC], high-density lipoprotein [HDL], low-density lipoprotein [LDL]), anthropometric measures (body mass index [BMI]), and suicide-related traits (suicidal ideation without suicide attempts [IDE] and suicidal thoughts and behaviors [SITB]) (false discovery rate [FDR]-adjusted empirical p-values < 0.05). Notably, this enrichment was not observed in AAs. Genetic correlation analyses revealed disparities between local HLA and genome-wide findings. EAs exhibited 16 significant local HLA correlations and 32 genome-wide correlations. Conversely, AAs displayed more significant local genetic correlations within the HLA region (14 pairs) than genome-wide (3 pairs), with two pairs (IDE-SITB, LDL-TC) concordantly significant. These findings underscore the HLA region’s substantial contribution to the variance of these lipid metabolic traits, BMI, and suicide-related traits. Further investigation into the genetic mechanisms by which HLA-mediated pathways influence these phenotypes is crucial for elucidating the complex role of this region, particularly concerning lipid metabolism and suicidal behaviors.

PMID:40673980 | DOI:10.1007/s00439-025-02763-9

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Nevin Manimala Statistics

Fractal analysis of the mandibular ramus in class II and III patients undergoing orthognathic surgery: retrospective study trough cone-beam computed tomography

Oral Maxillofac Surg. 2025 Jul 17;29(1):135. doi: 10.1007/s10006-025-01430-7.

ABSTRACT

INTRODUCTION: One of the challenges of orthognathic surgery (OS) is maintaining condylar position during osteosynthesis. It is believed that the post-surgical condylar position is related to postoperative morphological changes in the temporomandibular joint (TMJ), as well as surgical stability.

OBJECTIVE: The aim of this study is to perform fractal analysis of the mandibular ramus in class II and class III patients undergoing OS, analyzing cone beam computed tomography (CBCT) images one month before surgery (T0), one month after surgery (T1), and six to eight months after surgery (T2).

MATERIALS AND METHODS: Fractal analysis was performed on coronal and sagittal reconstructions. Regions of interest (ROIs) were selected for each patient and evaluated region. The ROIs underwent a processing method described by White & Rudolph in 1999. After processing, fractal analysis calculation was performed using the box-counting method by the “Fractal Box Count” function of the ImageJ software.

RESULTS: When examining the different periods (T0, T1, and T2) among class II and class III patients, no statistically significant differences were identified (p > 0.05). This finding suggests stability in the fractal characteristics of the analyzed region, regardless of skeletal class.

CONCLUSION: OS for correction of Class II and Class III malocclusions did not demonstrate a significant impact on the microstructure of the mandibular ramus over time.

PMID:40673961 | DOI:10.1007/s10006-025-01430-7

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Nevin Manimala Statistics

Effectiveness of T2-weighted and contrast-enhanced T1-weighted multivane sequences in the preoperative evaluation of uterine endometrial cancer

Abdom Radiol (NY). 2025 Jul 17. doi: 10.1007/s00261-025-05107-3. Online ahead of print.

ABSTRACT

PURPOSE: The purpose of this study was to evaluate the clinical effectiveness of MultiVane (MV) sequence, which is a motion correction technique using rotating blades, for patients with uterine endometrial cancer.

MATERIALS AND METHODS: This study enrolled 42 patients with histopathologically confirmed uterine endometrial cancer, who underwent preoperative MRI including sagittal T2-weighted images (T2WI) and contrast-enhanced T1-weighted images (CE-T1WI) acquired using both turbo spin-echo (TSE) and MV sequences with approximately matched acquisition times. Two experienced radiologists independently evaluated all sagittal images. First, the readers assessed the degree of motion artifacts and measured the signal intensity of the tumor and myometrium to calculate the signal-to-noise ratio (SNR) and tumor-to-myometrium contrast ratio (CR). Second, the readers assessed the depth of myometrial invasion on sagittal T2WI and CE-T1WI acquired using TSE and MV sequences. Image quality and diagnostic performance for assessing myometrial invasion were compared between TSE and MV sequences.

RESULTS: Motion artifacts were significantly improved on MV sequence than on TSE sequence (p < 0.01). The SNR and CR were not significantly different between TSE and MV sequences (p > 0.05). Sensitivities, specificities, accuracies, and area under the curve for the diagnosis of myometrial invasion were slightly increased on MV sequence than on TSE sequence, but these differences were not statistically significant (p > 0.05).

CONCLUSION: MV sequence contributes to the improvement of motion artifacts in the female pelvis without degrading SNR and CR of endometrial cancer and myometrium compared to TSE sequence. MV sequence did not significantly improve the diagnostic performance for assessing myometrial invasion in endometrial cancer, possibly due to the limited imaging plane and small sample size.

PMID:40673939 | DOI:10.1007/s00261-025-05107-3

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Nevin Manimala Statistics

Partial adaptation to surface movement during hand reaching

J Neurophysiol. 2025 Jul 17. doi: 10.1152/jn.00060.2025. Online ahead of print.

ABSTRACT

Humans can effectively adapt to changes in the environment to maintain adequate motor performance in a vast range of situations. However, residual errors tend to persist when strong a priori assumptions about the statistical regularities of the environment are violated. In our study, we challenged the expectation that inanimate objects are usually at rest. To this end, we used a robotic interface to move a plate over which participants slid their finger while reaching towards a target. We found limited evidence of adaptation after prolonged exposure to this perturbation, and only when visual feedback about hand position was provided. Although participants were aware of the motion of the contact surface, explicit knowledge about its direction was limited. Our results provide important insights on the limits of adaptation to motion perturbation in the somatosensory system, which can inform the design of technology applications such as haptic interfaces and collaborative robots.

PMID:40673926 | DOI:10.1152/jn.00060.2025