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1.
Pharmaceutics ; 16(6)2024 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-38931889

RESUMO

Drug absorption via chylomicrons holds significant implications for both pharmacokinetics and pharmacodynamics. However, a mechanistic understanding of predicting in vivo intestinal lymphatic uptake remains largely unexplored. This study aimed to delve into the intestinal lymphatic uptake of drugs, investigating both enhancement and inhibition using various excipients through our previously established in vitro model. It also examined the applicability of the model by assessing the lymphatic uptake enhancement of a lymphotropic formulation with linoleoyl polyoxyl-6 glycerides using the same model. The model successfully differentiated among olive, sesame, and peanut oils in terms of lymphatic uptake. However, it did not distinguish between oils containing long-chain fatty acids and coconut oil. Coconut oil, known for its abundance of medium-chain fatty acids, outperformed other oils. This heightened uptake was attributed to the superior emulsification of this oil in artificial chylomicron media due to its high content of medium-chain fatty acids. Additionally, the enhanced uptake of the tested formulation with linoleoyl polyoxyl-6 glycerides underscored the practical applicability of this model in formulation optimization. Moreover, data suggested that increasing the zeta potential of Intralipid® using sodium lauryl sulfate (SLS) and decreasing it using (+/-) chloroquine led to enhanced and reduced uptake in the in vitro model, respectively. These findings indicate the potential influence of the zeta potential on intestinal lymphatic uptake in this model, though further research is needed to explore the possible translation of this mechanism in vivo.

2.
J Am Coll Health ; : 1-9, 2024 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-38848267

RESUMO

Objective: To assess possible moderating variables that influence the effectiveness of a college-based mental health literacy curriculum, Mental Health Awareness and Advocacy (MHAA). Participants: Students at a Western University in the United States (MHAA treatment group: N = 474; Comparison group: N = 575). Methods: Using a non-randomized, quasi-experimental design over six semesters (2017-2019), students in the treatment and control groups reported on key demographic factors, experiences with mental health, and their knowledge, self-efficacy, and behaviors related to mental health literacy in a pretest/post-test format. Linear mixed effects models were used to assess moderation. Results: MHAA curriculum's efficacy varied based on participants' current depression and anxiety levels, whether they had prior personal experience with a mental health concern, whether they had been diagnosed with a mental health concern, and whether they had experienced suicidal thoughts. Conclusions: Reducing anxiety and depression among students may increase the efficacy of the MHAA program.

4.
PLoS One ; 19(4): e0302575, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38669267

RESUMO

Whether Latinx families use youth mental health services (MHS) depends on complex influences of barriers and facilitators within and outside of the home. This research sought to shed light on caregiver strain as part of the equation focused on parental identification and responses to youth mental health needs. We examined multiple dimensions of caregiver strain as potential mediators between youth mental health symptom severity and psychological counseling utilization. The present sample consisted of 598 Latinx caregivers to youths ages 6-18 who provided information on youth internalizing and externalizing problems, caregiver strain, and youth psychological counseling service utilization within the last year. Our findings suggest that youth symptom severity (internalizing and externalizing problems) was generally positively associated with dimensions of caregiver strain. Youth symptom severity through objective and subjective internalized strain pathways were associated with greater odds of youth MHS utilization. In contrast, youth symptom severity through subjective externalized strain reduced the odds that Latinx caregivers would report utilizing youth MHS. These models only partially mediated the relationship between youth problems and service use. Findings suggest that Latinx caregivers may navigate conflicting sources of strain related to their child's mental health problem severity in ways that may differentially impact the odds that they access youth MHS. Along with addressing structural and systemic barriers to care, utilization of psychological counseling services may also be improved through interventions that help Latinx caregivers view youth services as avenues for addressing caregiver strain and providing psychoeducation that frames externalized strain within a mental health lens.


Assuntos
Cuidadores , Aconselhamento , Hispânico ou Latino , Humanos , Adolescente , Cuidadores/psicologia , Feminino , Criança , Masculino , Hispânico ou Latino/psicologia , Serviços de Saúde Mental/estatística & dados numéricos , Adulto , Estresse Psicológico , Aceitação pelo Paciente de Cuidados de Saúde/psicologia
5.
J Speech Lang Hear Res ; 67(5): 1360-1369, 2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38629972

RESUMO

PURPOSE: According to the interpersonal synergy model of spoken dialogue, interlocutors modify their communicative behaviors to meet the contextual demands of a given conversation. Although a growing body of research supports this postulation for linguistic behaviors (e.g., semantics, syntax), little is understood about how this model applies to speech behaviors (e.g., speech rate, pitch). The purpose of this study is to test the hypothesis that interlocutors adjust their speech behaviors across different conversational tasks with different conversational goals. METHOD: In this study, 28 participants each engaged in two different types of conversations (i.e., relational and informational) with two partners (i.e., Partner 1 and Partner 2), yielding a total of 112 conversations. We compared six acoustic measures of participant speech behavior across conversational task and partner. RESULTS: Linear mixed-effects models demonstrated significant differences between speech feature measures in informational and relational conversations. Furthermore, these findings were generally robust across conversations with different partners. CONCLUSIONS: Results suggest that contextual demands influence speech behaviors. These findings provide empirical support for the interpersonal synergy model and highlight important considerations for assessing speech behaviors in individuals with communication disorders.


Assuntos
Relações Interpessoais , Fala , Humanos , Masculino , Feminino , Adulto Jovem , Adulto , Acústica da Fala , Comportamento Verbal , Comunicação
6.
Cogn Sci ; 48(3): e13417, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38478742

RESUMO

Lexical alignment, a communication phenomenon where conversational partners adapt their word choices to become more similar, plays an important role in the development of language and social communication skills. While this has been studied extensively in the conversations of preschool-aged children and their parents in Western, Educated, Industrialized, Rich, and Democratic (WEIRD) communities, research in other pediatric populations is sparse. This study makes significant expansions on the existing literature by focusing on alignment in naturalistic conversations of school-aged children from a non-WEIRD population across multiple conversational tasks and with different types of adult partners. Typically developing children aged 5 to 8 years (n = 45) engaged in four semi-structured conversations that differed by task (problem-solving vs. play-based) and by partner (parent vs. university student), resulting in a corpus of 180 conversations. Lexical alignment scores were calculated and compared to sham conversations, representing alignment occurring at the level of chance. Both children and adults coordinated their conversational utterances by re-using or aligning each other's word choices. This alignment behavior persisted across conversational tasks and partners, although the degree of alignment was moderated by the conversational context. These findings suggest that lexical alignment is a robust phenomenon in conversations between school-age children and adults. Furthermore, this study extends lexical alignment findings to a non-WEIRD culture, suggesting that alignment may be a coordination strategy employed by adults and children across diverse linguistic and cultural backgrounds.


Assuntos
Comunicação , Habilidades Sociais , Adulto , Pré-Escolar , Humanos , Criança , Linguagem Infantil , Idioma , Pais
7.
Account Res ; : 1-17, 2024 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-38516933

RESUMO

Artificial Intelligence (AI) language models continue to expand in both access and capability. As these models have evolved, the number of academic journals in medicine and healthcare which have explored policies regarding AI-generated text has increased. The implementation of such policies requires accurate AI detection tools. Inaccurate detectors risk unnecessary penalties for human authors and/or may compromise the effective enforcement of guidelines against AI-generated content. Yet, the accuracy of AI text detection tools in identifying human-written versus AI-generated content has been found to vary across published studies. This experimental study used a sample of behavioral health publications and found problematic false positive and false negative rates from both free and paid AI detection tools. The study assessed 100 research articles from 2016-2018 in behavioral health and psychiatry journals and 200 texts produced by AI chatbots (100 by "ChatGPT" and 100 by "Claude"). The free AI detector showed a median of 27.2% for the proportion of academic text identified as AI-generated, while commercial software Originality.AI demonstrated better performance but still had limitations, especially in detecting texts generated by Claude. These error rates raise doubts about relying on AI detectors to enforce strict policies around AI text generation in behavioral health publications.

8.
PLoS One ; 19(2): e0287878, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38354165

RESUMO

E-cigarette use among adolescents is a national health epidemic spreading faster than researchers can amass evidence for risk and protective factors and long-term consequences associated with use. New technologies, such as machine learning, may assist prevention programs in identifying at risk youth and potential targets for intervention before adolescents enter developmental periods where e-cigarette use escalates. The present study utilized machine learning algorithms to explore a wide array of individual and socioecological variables in relation to patterns of lifetime e-cigarette use during early adolescence (i.e., exclusive, or with tobacco cigarettes). Extant data was used from 14,346 middle school students (Mage = 12.5, SD = 1.1; 6th and 8th grades) who participated in the Utah Prevention Needs Assessment. Students self-reported their substance use behaviors and related risk and protective factors. Machine learning algorithms examined 112 individual and socioecological factors as potential classifiers of lifetime e-cigarette use outcomes. The elastic net algorithm achieved outstanding classification for lifetime exclusive (AUC = .926) and dual use (AUC = .944) on a validation test set. Six high value classifiers were identified that varied in importance by outcome: Lifetime alcohol or marijuana use, perception of e-cigarette availability and risk, school suspension(s), and perceived risk of smoking marijuana regularly. Specific classifiers were important for lifetime exclusive (parent's attitudes regarding student vaping, best friend[s] tried alcohol or marijuana) and dual use (best friend[s] smoked cigarettes, lifetime inhalant use). Our findings provide specific targets for the adaptation of existing substance use prevention programs to address early adolescent e-cigarette use.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Fumar Maconha , Transtornos Relacionados ao Uso de Substâncias , Vaping , Humanos , Adolescente , Vaping/epidemiologia , Aprendizado de Máquina , Etanol
9.
Ophthalmology ; 131(5): 577-588, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38092081

RESUMO

PURPOSE: Examine the frequency and cost of procedural clearance tests and examinations in preparation for low-risk cataract surgery among members of a commercial healthcare organization in the United States. Determine what characteristics most strongly predict receipt of preoperative care and the probability that preoperative care impacts postsurgical adverse events. DESIGN: Retrospective healthcare claims analysis and medical records review from a large, blended-health organization headquartered in Western Pennsylvania. PARTICIPANTS: Members aged ≥ 65 years who were continuously enrolled 6 months before and after undergoing cataract surgery from 2018 to 2021 and had approved surgery claims. METHODS: Preoperative exams or tests occurring in the 30 days before surgery were identified via procedural and diagnosis codes on claims of eligible members (e.g., Current Procedural Terminology codes for blood panels and preprocedural International Classification of Diseases, 10th Revision, Clinical Modification codes). Prevalence and cost were directly estimated from claims; variables predictive of preoperative care receipt and adverse events were tested using mixed effects modeling. MAIN OUTCOME MEASURES: Total costs, prevalence, and strength of association as indicated by odds ratios. RESULTS: Up to 42% of members undergoing cataract surgery had a physician office visit for surgical clearance, and up to 23% of members had testing performed in isolation or along with clearance visits. The combined costs for the preoperative visits and tests were $4.3 million (approximately $107-$114 per impacted member). There was little difference in member characteristics between those receiving and not receiving preoperative testing or exams. Mixed effects models showed that the most impactful determinants of preoperative care were the surgical facility and member's care teams; for preoperative testing, facilities were a stronger predictor than care teams. Adverse events were rare and unassociated with receipt of preoperative testing, exams, or a combination of the two. CONCLUSIONS: Rates of routine preoperative testing before cataract surgery appear similar to those prior to the implementation of the Choosing Wisely campaign, which was meant to reduce this use. Additionally, preoperative evaluations, many likely unnecessary, were common. Further attention to and reconsideration of current policies and practice for preoperative care may be warranted, especially at the facility level. FINANCIAL DISCLOSURE(S): The author(s) have no proprietary or commercial interest in any materials discussed in this article.

10.
Psychol Serv ; 21(1): 50-64, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37856391

RESUMO

A lack of validated measures to examine barriers to youth telepsychology services among Latinx families limits research that could identify targets for reducing mental health disparities. We developed and validated the Latinx Barriers to Accessing Telepsychology Services (Latinx BATS) questionnaire, a brief multidimensional measure for caregivers of youths. Participants included 511 Latinx caregivers of youths Ages 6-18 (English n = 275, Spanish n = 236) who completed the Latinx BATS and reported on telepsychology service utilization and youth mental health problems. Caregivers whose youths had clinically elevated mental health problems were more likely to report barriers to accessing youth telepsychology services compared to nonclinical youths. Commonly endorsed barriers included concerns that the child would be distracted and not get much benefit, and that providers would be unfamiliar with the family's culture or would not pick up on nuances and emotions. Loadings from an exploratory graph analysis returned four-factors: relational, acceptability, quality, and access concerns. Network centrality measures identified provider knowledge regarding community resources and Latinx culture as important targets for reducing barriers to youth telepsychology services. Confirmatory factor analyses were then conducted and found that the four-factor structure outperformed a single-factor solution. The four-factor structure was similar for the English and Spanish versions of the Latinx BATS, but the strength of item loadings varied across languages. Implications for the use of the Latinx BATS in research and clinical practice are discussed including specific strategies for reducing these obstacles to care among Latinx families. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Assuntos
Cuidadores , Telessaúde Mental , Criança , Adolescente , Humanos , Cuidadores/psicologia , Inquéritos e Questionários , Idioma , Hispânico ou Latino
11.
Cureus ; 15(9): e45947, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37885496

RESUMO

Voriconazole-induced periostitis (VIP) is an uncommon side effect typically seen in immunosuppressed patients requiring prolonged antifungal therapy. These patients can present with bone pain, fragility, and elevated alkaline phosphatase (ALP). We present a case of VIP in a 72-year-old immunocompromised female on antifungal therapy presenting with a comminuted intertrochanteric fracture after a ground-level fall. VIP, although rare, should be included as a differential diagnosis for patients presenting with bone pain and/or fractures with radiographic features of periostitis. This is particularly true when there is a history of or prior imaging suggesting a solid organ transplant. In these cases, a dedicated review of current medications noting long-term voriconazole use in the absence of underlying rheumatologic disease can result in a confident diagnosis.

12.
J Speech Lang Hear Res ; 66(10): 3791-3803, 2023 10 04.
Artigo em Inglês | MEDLINE | ID: mdl-37616225

RESUMO

PURPOSE: As evidenced by perceptual learning studies involving adult listeners and speakers with dysarthria, adaptation to dysarthric speech is driven by signal predictability (speaker property) and a flexible speech perception system (listener property). Here, we extend adaptation investigations to adolescent populations and examine whether adult and adolescent listeners can learn to better understand an adolescent speaker with dysarthria. METHOD: Classified by developmental stage, adult (n = 42) and adolescent (n = 40) listeners completed a three-phase perceptual learning protocol (pretest, familiarization, and posttest). During pretest and posttest, all listeners transcribed speech produced by a 13-year-old adolescent with spastic dysarthria associated with cerebral palsy. During familiarization, half of the adult and adolescent listeners engaged in structured familiarization (audio and lexical feedback) with the speech of the adolescent speaker with dysarthria; and the other half, with the speech of a neurotypical adolescent speaker (control). RESULTS: Intelligibility scores increased from pretest to posttest for all listeners. However, listeners who received dysarthria familiarization achieved greater intelligibility improvements than those who received control familiarization. Furthermore, there was a significant effect of developmental stage, where the adults achieved greater intelligibility improvements relative to the adolescents. CONCLUSIONS: This study provides the first tranche of evidence that adolescent dysarthric speech is learnable-a finding that holds even for adolescent listeners whose speech perception systems are not yet fully developed. Given the formative role that social interactions play during adolescence, these findings of improved intelligibility afford important clinical implications.


Assuntos
Inteligibilidade da Fala , Percepção da Fala , Adulto , Humanos , Adolescente , Disartria/etiologia , Aprendizagem , Cognição
13.
J Speech Lang Hear Res ; 66(10): 4025-4036, 2023 10 04.
Artigo em Inglês | MEDLINE | ID: mdl-37652059

RESUMO

PURPOSE: The ability to understand speech under adverse listening conditions is highly variable across listeners. Despite this, studies have found that listeners with normal hearing display consistency in their ability to perceive speech across different types of degraded speech, suggesting that, for at least these listeners, global skills may be involved in navigating the ambiguity in speech signals. However, there are substantial differences in the perceptual challenges faced by listeners with normal and impaired hearing. This study examines whether listeners with sensorineural hearing loss demonstrate the same type of consistency as normal-hearing listeners when processing neurotypical (i.e., control) speech that has been degraded by external noise and speech that is neurologically degraded such as dysarthria. METHOD: Listeners with normal hearing (n = 31) and listeners with sensorineural hearing loss (n = 36) completed an intelligibility task with neurotypical speech in noise and with dysarthric speech in quiet. RESULTS: Findings were consistent with previous work demonstrating a relationship between the ability to perceive neurotypical speech in noise and dysarthric speech for listeners with normal hearing, albeit at a higher intelligibility level than previously observed. This relationship was also observed for listeners with hearing loss, although listeners with more severe hearing losses performed better with dysarthric speech than with neurotypical speech in noise. CONCLUSIONS: This study demonstrated a high level of consistency in intelligibility performance for listeners across two different types of degraded speech, even when those listeners were further challenged by the presence of sensorineural hearing loss. Clinical implications for both listeners with hearing loss and their communication partners with dysarthria are discussed.


Assuntos
Surdez , Perda Auditiva Neurossensorial , Percepção da Fala , Humanos , Disartria/etiologia , Ruído , Inteligibilidade da Fala
14.
J Pharm Biomed Anal ; 235: 115631, 2023 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-37586306

RESUMO

A selective and sensitive liquid chromatography mass spectrometry assay was developed for the detection of cannflavin A, B, and C in hemp extract specimens. A deuterated analog cannabidiol-D3 was used as the internal standard and the isocratic method used a mobile phase consisting of acetonitrile and water with 0.1 % formic acid [83:17]. Detection was carried out by electrospray positive ionization in single-ion monitoring mode through a C-18 analytical column. The assay (total run time <20 min) had excellent linearity and a lower limit of quantification of 0.5 µg/mL and a limit of detection of 0.25 µg/mL with a 10 µL injection. The method possessed suitable measures of stability, sensitivity, and selectivity for detecting cannflavins in several specimen types. The method was successfully applied to the analysis of samples of cannflavin release from prototype topical formulations.


Assuntos
Cannabis , Cannabis/química , Espectrometria de Massas por Ionização por Electrospray/métodos , Cromatografia Líquida/métodos , Extratos Vegetais , Cromatografia Líquida de Alta Pressão/métodos , Reprodutibilidade dos Testes
15.
J Speech Lang Hear Res ; 66(8S): 3132-3150, 2023 08 17.
Artigo em Inglês | MEDLINE | ID: mdl-37071795

RESUMO

PURPOSE: Defined as the similarity of speech behaviors between interlocutors, speech entrainment plays an important role in successful adult conversations. According to theoretical models of entrainment and research on motoric, cognitive, and social developmental milestones, the ability to entrain should develop throughout adolescence. However, little is known about the specific developmental trajectory or the role of speech entrainment in conversational outcomes of this age group. The purpose of this study is to characterize speech entrainment patterns in the conversations of neurotypical early adolescents. METHOD: This study utilized a corpus of 96 task-based conversations between adolescents between the ages of 9 and 14 years and a comparison corpus of 32 task-based conversations between adults. For each conversational turn, two speech entrainment scores were calculated for 429 acoustic features across rhythmic, articulatory, and phonatory dimensions. Predictive modeling was used to evaluate the degree of entrainment and relationship between entrainment and two metrics of conversational success. RESULTS: Speech entrainment increased throughout early adolescence but did not reach the level exhibited in conversations between adults. Additionally, speech entrainment was predictive of both conversational quality and conversational efficiency. Furthermore, models that included all acoustic features and both entrainment types performed better than models that only included individual acoustic feature sets or one type of entrainment. CONCLUSIONS: Our findings show that speech entrainment skills are largely developed during early adolescence with continued development possibly occurring across later adolescence. Additionally, results highlight the role of speech entrainment in successful conversation in this population, suggesting the import of continued exploration of this phenomenon in both neurotypical and neurodivergent adolescents. We also provide evidence of the value of using holistic measures that capture the multidimensionality of speech entrainment and provide a validated methodology for investigating entrainment across multiple acoustic features and entrainment types.


Assuntos
Comunicação , Fala , Adulto , Humanos , Adolescente , Criança , Fonação , Medida da Produção da Fala , Acústica
16.
J Speech Lang Hear Res ; 66(5): 1853-1866, 2023 05 09.
Artigo em Inglês | MEDLINE | ID: mdl-36944186

RESUMO

PURPOSE: Background noise reduces speech intelligibility. Time-frequency (T-F) masking is an established signal processing technique that improves intelligibility of neurotypical speech in background noise. Here, we investigated a novel application of T-F masking, assessing its potential to improve intelligibility of neurologically degraded speech in background noise. METHOD: Listener participants (N = 422) completed an intelligibility task either in the laboratory or online, listening to and transcribing audio recordings of neurotypical (control) and neurologically degraded (dysarthria) speech under three different processing types: speech in quiet (quiet), speech mixed with cafeteria noise (noise), and speech mixed with cafeteria noise and then subsequently processed by an ideal quantized mask (IQM) to remove the noise. RESULTS: We observed significant reductions in intelligibility of dysarthric speech, even at highly favorable signal-to-noise ratios (+11 to +23 dB) that did not impact neurotypical speech. We also observed significant intelligibility improvements from speech in noise to IQM-processed speech for both control and dysarthric speech across a wide range of noise levels. Furthermore, the overall benefit of IQM processing for dysarthric speech was comparable with that of the control speech in background noise, as was the intelligibility data collected in the laboratory versus online. CONCLUSIONS: This study demonstrates proof of concept, validating the application of T-F masks to a neurologically degraded speech signal. Given that intelligibility challenges greatly impact communication, and thus the lives of people with dysarthria and their communication partners, the development of clinical tools to enhance intelligibility in this clinical population is critical.


Assuntos
Disartria , Percepção da Fala , Humanos , Disartria/etiologia , Disartria/terapia , Inteligibilidade da Fala , Percepção Auditiva , Cognição , Laboratórios , Mascaramento Perceptivo
17.
Res Pharm Sci ; 18(1): 1-15, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36846734

RESUMO

Background and purpose: Lysosomal-targeted drug delivery can open a new strategy for drug therapy. However, there is currently no universally accepted simulated or artificial lysosomal fluid utilized in the pharmaceutical industry or recognized by the United States Pharmacopeia (USP). Experimental procedure: We prepared a simulated lysosomal fluid (SLYF) and compared its composition to a commercial artificial counterpart. The developed fluid was used to test the dissolution of a commercial product (Robitussin®) of a lysosomotropic drug (dextromethorphan) and to investigate in-vitro lysosomal trapping of two model drugs (dextromethorphan and (+/-) chloroquine). Findings/Results: The laboratory-prepared fluid or SLYF contained the essential components for the lysosomal function in concentrations reflective of the physiological values, unlike the commercial product. Robitussin® passed the acceptance criteria for the dissolution of dextromethorphan in 0.1 N HCl medium (97.7% in less than 45 min) but not in the SLYF or the phosphate buffer media (72.6% and 32.2% within 45 min, respectively). Racemic chloroquine showed higher lysosomal trapping (51.9%) in the in-vitro model than dextromethorphan (28.3%) in a behavior supporting in-vivo findings and based on the molecular descriptors and the lysosomal sequestration potential of both. Conclusion and implication: A standardized lysosomal fluid was reported and developed for in-vitro investigations of lysosomotropic drugs and formulations.

18.
Brain Behav ; 13(2): e2895, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36706040

RESUMO

INTRODUCTION: Children with developmental language disorder (DLD) exhibit cognitive deficits that interfere with their ability to learn language. Little is known about the functional neuroanatomical differences between children developing typically (TD) and children with DLD. METHODS: Using functional near-infrared spectroscopy, we recorded oxygenated hemoglobin (O2 hb) concentration values associated with neural activity in children with and without DLD during an auditory N-back task that included 0-back, 1-back, and 2-back conditions. Analyses focused on the left dorsolateral prefrontal cortex (DLPFC) and left inferior parietal lobule (IPL). Multilevel models were constructed with accuracy, response time, and O2 hb as outcome measures, with 0-back outcomes as fixed effects to control for sustained attention. RESULTS: Children with DLD were significantly less accurate than their TD peers at both the 1-back and 2-back tasks, and they demonstrated slower response times during 2-back. In addition, children in the TD group demonstrated significantly greater sensitivity to increased task difficulty, showing increased O2 hb to the IPL during 1-back and to the DLPFC during the 2-back, whereas the DLD group did not. A secondary analysis revealed that higher O2 hb in the DLPFC predicted better task accuracy across groups. CONCLUSION: When task difficulty increased, children with DLD failed to recruit the DLPFC for monitoring information and the IPL for processing information. Reduced memory capacity and reduced engagement likely contribute to the language learning difficulties of children with DLD.


Assuntos
Transtornos do Desenvolvimento da Linguagem , Memória de Curto Prazo , Humanos , Criança , Memória de Curto Prazo/fisiologia , Espectroscopia de Luz Próxima ao Infravermelho , Transtornos do Desenvolvimento da Linguagem/diagnóstico por imagem , Transtornos do Desenvolvimento da Linguagem/psicologia , Aprendizagem , Idioma
19.
Int J Audiol ; 62(5): 410-417, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-35301941

RESUMO

OBJECTIVE: Consistent hearing aid use is essential for spoken language development of children who are hard of hearing. A recent randomised controlled trial of an eHealth hearing aid management education program found the intervention increased knowledge, perceptions, confidence, and device monitoring among parents of young children. Yet, it is not known which variables can be a point of emphasis to improve treatment outcomes. The purpose of this study was to investigate potential moderators and predictors in the eHealth program. DESIGN: Randomised controlled trial. STUDY SAMPLE: Parents (N = 78) of children (42 months or younger) were randomised to the intervention or treatment-as-usual (TAU) group. RESULTS: Results revealed that high psychological inflexibility, low parent activation, and low hours of hearing aid use may moderate device monitoring frequency and knowledge; parents in the intervention improved over time compared to the TAU group. Psychological inflexibility and parent activation also predicted treatment outcomes. CONCLUSION: The findings suggest the need to address parent psychological inflexibility related to hearing loss management, parents' role in their child's hearing aid management, and reported hours of hearing aid use as part of hearing aid service delivery. Identification of barriers to hearing aid management can assist audiologists in adjusting support to improve outcomes.


Assuntos
Surdez , Auxiliares de Audição , Perda Auditiva , Criança , Humanos , Pré-Escolar , Surdez/reabilitação , Perda Auditiva/reabilitação , Pais/psicologia , Audiologistas
20.
J Interpers Violence ; 38(3-4): 2585-2613, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35658608

RESUMO

Sexual harassment and violence is a grave public health concern and risk for revictimization increases following initial exposure. Studies of sexual revictimization in military samples are generally limited to women and are focused on rates of posttraumatic stress disorder (PTSD), with no examination of how revictimization relates to interpersonal outcomes, such as relationship or sexual satisfaction. The current study addressed these gaps in a sample of 833 women and 556 men service members/veterans. Self-reported outcomes of PTSD, depression, suicidal ideation, sexual function, and relationship satisfaction were compared across those reporting exposure to sexual harassment and violence before the military only (i.e., pre-military), during the military only (i.e., military sexual harassment and violence [MSV]), before and during the military (i.e., revictimization), and to no exposure. More than half of women (51.14%, n = 426) reported revictimization and only 5.79% (n = 28) of men reported revictimization. Among women, those reporting MSV or revictimization tended to report higher PTSD, depression, and suicidal ideation relative to pre-military sexual violence and no sexual violence exposure. No interpersonal outcomes were significantly different among these sexual violence groups. Among men, revictimization was associated with higher PTSD, depression, and sexual compulsivity. PTSD and depression were also higher among those reporting MSV only. No effects were found for premilitary sexual trauma exposure only or relationship satisfaction for either group. Findings highlight the particularly bothersome nature of MSV, whether it occurred alone or in tandem with premilitary sexual violence. Findings also show unique gender differences across outcomes, suggesting interventions following sexual harassment and violence may differ for men and women.


Assuntos
Militares , Delitos Sexuais , Assédio Sexual , Transtornos de Estresse Pós-Traumáticos , Veteranos , Masculino , Feminino , Humanos , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Violência
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