Factors affecting spiritual care competency of mental health nurses: a questionnaire-based cross-sectional study.

BACKGROUND: Although providing spiritual care is an important part of holistic nursing care for psychiatric patients, factors associated with spiritual care competency in mental health nurses remain unclear. The aim of our study was to explore a possible association of personal and external factors with spiritual care competency in mental health nurses. METHODS: This prospective questionnaire-based cross-sectional study was conducted by inviting mental health nurses from mental health hospitals and tertiary referral centers. Personality traits and spiritual care competency were assessed by using [1] "big-five Mini-Markers" questionnaire, and [2] spiritual care competency scale, respectively. From the 250 mental health nurses being invited, 239 valid questionnaires were valid for final analysis. Statistical analyses including descriptive statistics, ANOVAs, t-tests, and hierarchical multiple regression models were used to investigate the associations between personal/external factors and their spiritual care competency in mental health nurses. RESULTS: The mean age of the 239 participants was 35.96 ± 8.11 and the mean years of working experience was 9.41 ± 7.06. Over 90% of them had no experience of providing spiritual care. There were significant positive correlations of spiritual care competency with the experience of delivering spiritual care (p < 0.001), previous participation in spiritual care education programs (p = 0.045), a longer working experience (p = 0.014), and a higher education level (postgraduate vs. college, p = 0.006), as well as the personality components of "Conscientiousness" (p < 0.001), "Agreeableness" (p < 0.001), "Extraversion" (p = 0.03), and "Openness/Intellect" (p < 0.001). CONCLUSIONS: Both personal and external factors may be related to the self-perception of spiritual care competency among mental health nurses. These findings may help mental health nurses understand the possible positive and negative associations of their personality components with their spiritual care abilities. Moreover, our identification of the positive impacts of educational programs and previous experience of spiritual care on spiritual care competency may underscore the importance of tailoring appropriate training programs to cater for the individual needs of mental health nurses.

Therapeutic effects of antidepressants for global improvement and subdomain symptoms of autism spectrum disorder: a systematic review and meta-analysis.

BACKGROUND: No established pharmacological treatment is available for the core symptoms of autism spectrum disorder (ASD). This study aimed at investigating the efficacy of antidepressants for the core and associated symptoms of ASD. METHODS: We searched PubMed, Embase, ClinicalKey, Cochrane CENTRAL, ScienceDirect, Web of Science and ClinicalTrials.gov using the keywords "ASD" and "antidepressants." We searched from database inception to June 2021 for randomized controlled trials of antidepressant use in patients with ASD. We calculated pooled effect sizes based on a random-effects model. RESULTS: Analysis of 16 studies with 899 participants showed improvements in restricted and repetitive behaviours (effect size = 0.27) and global symptoms (effect size = 1.0) in patients with ASD taking antidepressants versus those taking placebos (p ≤ 0.01). We found no differences between the 2 groups (p ≥ 0.36) in terms of dropout rate (odds ratio [OR] = 1.17) or rate of study discontinuation because of adverse events (OR = 1.05). We also noted improvements in irritability and hyperactivity in the antidepressant group (Hedges g = 0.33 and 0.22, respectively, both p < 0.03). Subgroup analyses showed significant effects of medication type (i.e., clomipramine was better than SSRIs) and age (antidepressants were more effective in adults than in children or adolescents) on both restricted and repetitive behaviours and global improvement (p < 0.05). Meta-regression demonstrated that better therapeutic effects were associated with lower symptom severity and older age. LIMITATIONS: The small effect sizes and variations in treatment response that we found warrant further study. CONCLUSION: Our results supported the effectiveness of antidepressants for global symptoms and symptom subdomains of ASD, with tolerable adverse effects. Low symptom severity and adulthood were associated with better outcomes.

Stress Judgment and Production in English Derivation, and Word Reading in Adult Mandarin-Speaking English Learners.

For monolingual English-speaking children, judgment and production of stress in derived words, including words with phonologically neutral (e.g., -ness) and non-neutral suffixes (e.g., -ity), is important to both academic vocabulary growth and to word reading. For Mandarin-speaking adult English learners (AELs) the challenge of learning the English stress system might be complicated by cross-linguistic differences in prosodic function and features. As Mandarin-speakers become more proficient in English, patterns similar to those seen in monolingual children could emerge in which awareness and use of stress and suffix cues benefit word reading. A correlational design was used to examine the contributions of English stress in derivation with neutral and non-neutral suffixes to English word and nonword reading. Stress judgment in non-neutral derivation predicted word reading after controlling for working memory and English vocabulary; whereas stress production in neutral derivation contributed to word reading and pseudoword decoding, independent of working memory and English vocabulary. Although AELs could use stress and suffix cues for word reading, AELs were different from native English speakers in awareness of non-neutral suffix cues conditioning lexical stress placement. AELs may need to rely on lexical storage of primary stress in derivations with non-neutral suffixes.

Significant treatment effect of adjunct music therapy to standard treatment on the positive, negative, and mood symptoms of schizophrenic patients: a meta-analysis.

BACKGROUND: Music therapy (MT) has been used as adjunct therapy for schizophrenia for decades. However, its role is still inconclusive. A recent meta-analysis demonstrated that MT for schizophrenic patients only significantly benefits negative symptoms and mood symptoms rather than positive symptoms. In addition, the association between specific characteristics of MT and the treatment effect remains unclear. The aim of this study was to update the published data and to explore the role of music therapy in adjunct treatment in schizophrenia with a thorough meta-analysis. METHODS: We compared the treatment effect in schizophrenic patients with standard treatment who did and did not receive adjunct MT through a meta-analysis, and investigated the clinical characteristics of MT through meta-regression. RESULTS: The main finding was that the treatment effect was significantly better in the patients who received adjunct MT than in those who did not, in negative symptoms, mood symptoms, and also positive symptoms (all p < 0.05). This significance did not change after dividing the patients into subgroups of different total duration of MT, amounts of sessions, or frequency of MT. Besides, the treatment effect on the general symptoms was significantly positively associated with the whole duration of illness, indicating that MT would be beneficial for schizophrenic patients with a chronic course. CONCLUSIONS: Our meta-analysis highlights a significantly better treatment effect in schizophrenic patients who received MT than in those who did not, especially in those with a chronic course, regardless of the duration, frequency, or amounts of sessions of MT. These findings provide evidence that clinicians should apply MT for schizophrenic patients to alleviate disease severity.

Effective and Cheap Behavioral Modification Therapy to Manage Complicated Polydipsia and Seizures in a Chronic Mental Health Institute.

PURPOSE: Polydipsia is one of the most serious and complicated problems causing morbidity and mortality in chronic mental health institutes. The pathophysiology of polydipsia in chronic schizophrenia remains unclear; as a result, no effective methods exist to deal with this serious problem. This report describes a patient with schizophrenia with polydipsia and seizures who benefitted from a behavioral modification program at a chronic mental health institute. CASE REPORT: A 56-year-old schizophrenic man did not have a history of physical illnesses or seizures and developed seizures following polydipsia. Despite drug adjustment, his polydipsia was uncontrolled and he suffered from generalized tonic convulsions. After introducing a "water restriction program," his polydipsia and seizures were controlled. CONCLUSION: The "water restriction program" consisted of daily body weight monitoring and frequent checking of electrolyte data, both of which are inexpensive and simple. This program can be carried out by untrained nursing staff, who are the primary caregivers in chronic mental health institutes. Our case highlights an effective and inexpensive behavior modification program to deal with the difficult and complicated problems of polydipsia and seizures in chronic mental health institutes.

Associations between sleep, reading, and mathematics in Taiwanese children.

BACKGROUND: Some research shows a link between sleep behaviours and school achievement in English-speaking children and adolescents. AIMS: The current study aimed to examine the relationship between children's sleep behaviours and aspects of their school achievement in Mandarin-speaking children who are living in Taiwan. SAMPLE: The present study reports on 69 second-grade children (age range = 6.84-8.4 years) recruited in Taipei City, Taiwan. METHODS: Children's sleep behaviours were assessed through two standardized parent self-report questionnaires: the Children's Sleep Habits Questionnaire (CSHQ) and the Sleep Disturbance Scale for Children (SDSC). Children undertook three standardized tests of word reading, reading comprehension and math. RESULTS: Key findings include: (i) sleep disturbances are more prevalent when using the CSHQ scale than the SDSC scale, (ii) around half of second graders struggle with general sleep disturbances as observed by the CSHQ scale, (iii) children who go to bed before 22:00 and have at least 9-h sleep tend to exhibit fewer sleep disturbances, (iv) parasomnias as measured by the CSHQ are negatively correlated with reading comprehension after controlling age and nonverbal IQ, and (v) the amount of sleep (naps) during daytime is negatively correlated with Chinese character recognition, reading comprehension and math after controlling age and nonverbal IQ. CONCLUSIONS: There is growing awareness of the value of research that spans culturally and linguistically diverse populations. Our study contributes to ongoing discussions about the relationship between sleep, and skills in reading and math in school-aged children in Taiwan.

Impacts of extrinsic and intrinsic factors on psychiatric nurses' spiritual care attitudes.

WHAT IS KNOWN ON THE SUBJECT?: Because the definition of spirituality is complex and has cultural and individual dimensions, it is important to be receptive to individual differences in the perception of spirituality during clinical practice of mental health nurses. Although enhancing spiritual care is beneficial to patients diagnosed with mental illnesses, the extrinsic (e.g., education) and intrinsic factors that would affect nurses' attitudes towards spiritual care have not been investigated. Notwithstanding the known impact of certain intrinsic factors (e.g., personality-related) of mental health nurses on their coping strategies as well as their emotional and mental health, the link to their spiritual care attitudes has received little attention. WHAT THIS PAPER ADDS TO EXISTING KNOWLEDGE?: This paper is the first to identify the beneficial impacts of extrinsic factors including postgraduate education, working experience, participation in palliative care education programmes, and spiritual care experience on spiritual care attitudes among mental health nurses. Certain intrinsic factors, including those personality-related such as "Extraversion," "Openness/Intellect," "Conscientiousness," and "Agreeableness," were also associated with higher awareness of providing spiritual care among mental health nurses. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: The finding of an association of certain intrinsic factors with more positive attitudes towards spiritual care could encourage further studies to explore possible links between these factors and attitudes of spiritual care. Those less aware of the patients' spiritual needs may benefit through participating in relevant education and on-the-job training programmes that involves actual practice and collaboration in a multidisciplinary team. ABSTRACT: Introduction Although enhancing spiritual care can facilitate the communication of mental health nurses with patients diagnosed with mental illnesses, extrinsic and intrinsic factors that may influence their spiritual care attitudes remain unclear. Aim To conduct a questionnaire-based survey on mental health nurses from eight hospitals. Method A total of 239 psychiatric nurses were assessed based on (1) "big-five Mini-Markers" questionnaire and (2) spiritual care attitudes scale on three components (i.e., core values, growth, and nursing) to investigate the associations of spiritual care attitudes with social/occupational characteristics and personality. Results A positive attitude was significantly associated with working experience, higher educational level, previous participation in palliative care education programmes, spiritual care experience, and personality factors including "Extraversion," "Openness/Intellect," "Conscientiousness," and "Agreeableness." Discussion Despite demonstrating impacts of intrinsic factors (e.g., personality) on mental health nurses' spiritual care attitudes, other modifiable extrinsic factors (e.g., education) were important in enhancing their awareness towards spiritual care. Implications for Practice Our findings encourage further studies to explore possible links between intrinsic factors and attitudes of mental health nurses towards spiritual care as well as suggest benefits of continuing education and on-the-job training that involves actual practice and collaboration in a multidisciplinary team to provide spiritual care.

Efficacy and tolerability of psychostimulants for symptoms of attention-deficit hyperactivity disorder in preschool children: A systematic review and meta-analysis.

BACKGROUND: There was no previous meta-analysis investigating the efficacy/tolerability of psychostimulants for symptoms of attention-deficit hyperactivity disorder (ADHD) in preschool children. METHODS: Databases including PubMed, the Cochrane Library, EMBASE, ScienceDirect, and ClinicalTrials.gov were searched from inception to March 2022 for randomized controlled trials (RCTs) on therapeutic efficacy of psychostimulants against ADHD symptoms in preschool children (age ≤6 years) compared with placebos. Primary outcomes were (a) changes in ADHD symptoms evaluated by validated rating scales from parents'/teacher's observation, or (b) post-intervention improvements in neuropsychological performance. Secondary outcomes were risks of adverse events. RESULTS: Meta-analysis of nine eligible trials including 544 preschool children (mean age=4.86 years, female=11.98%, median treatment duration=4.33 weeks) supported the efficacy of psychostimulants against global symptoms from observations of parents (Hedges' g=0.6152, p<0.0001) and teachers (Hedges' g=0.6563, p=0.0039). Efficacy of psychostimulants was also noted against symptoms of inattention and hyperactivity/impulsivity, especially the latter (i.e., main symptoms in preschool children). Moreover, male gender, older age, and longer treatment duration were associated with better efficacy. Regarding adverse events, only the risk of poor appetite was higher in the psychostimulant group (odds ratio [OR]=2.39). However, the qualities of evidence were low to very low, indicating potential discrepancy between the true and estimated effect. CONCLUSIONS: Our results showed that psychostimulants might be beneficial for preschool children with ADHD, especially hyperactivity/impulsivity from teachers' observation, with tolerable side effects. Nevertheless, the true magnitude of the effect needs to be confirmed with more research due to low to very low certainty of the evidence.

Efficacy of electrical cranial stimulation for treatment of psychiatric symptoms in patients with anxiety: A systematic review and meta-analysis.

Background: Therapeutic effects of electrical cranial stimulation (CES) in patients suffering from anxiety remained unclear. This meta-analysis aimed at investigating acceptability and therapeutic efficacy of CES against anxiety, depression, and insomnia for patients who experienced symptoms of anxiety. Methods: Major electronic databases were searched from inception until December 10, 2022 for randomized controlled trials (RCT) focusing on therapeutic effectiveness of CES in patients whose primary complaints included anxiety. Effect sizes (ES) for different treatment outcomes were estimated by using generic inverse variance method. Results: Eight RCTs were identified including a total of 337 participants. The therapeutic effectiveness of CES was significantly better than that in the control groups for anxiety (ES=-0.96, p <0.00001, eight trials, 337 patients), depression (ES=-0.69, p=0.003, five trials), and insomnia (ES=-1.02, p = 0.0006, three trials) in those who presented with symptoms of anxiety. Subgroup analyses found that CES was equally effective regardless of comorbid presentation of depressive symptoms (ES=-0.94 in patients with anxiety only vs. ES=-1.06 in those with depression and anxiety) and whether CES was used as monotherapy or add-on therapy to medications (ES = -0.88 vs. ES = -1.12, respectively). Moreover, subgroup analysis of RCTs using the same device "Alpha-Stim" for CES was more effective in alleviating anxiety than sham controls (ES = -0.88, p < 0.00001, four trials, 230 patients). Regarding acceptability, the use of CES did not increase the risk of treatment-related dropout compared to the control group (RR = 1.26, p = 0.57, I2 = 0%, four trials, 324 patients). Conclusion: Our study supported the use of CES for symptoms of anxiety, depression, and insomnia in those suffering from anxiety with fair acceptability and demonstrated the efficacy of "Alpha-Stim", the most commonly used device for CES, in this patient population. Systematic review registration: https://www.crd.york.ac.uk/prospero/, identifier: CRD42022382619.

Comparison of emission characteristics between the CdZnO/ZnO quantum wells on ZnO and GaN templates.

CdZnO/ZnO quantum well (QW) samples are grown on GaN and ZnO templates with plasma-assisted molecular beam epitaxy under different conditions of substrate temperature, Cd effusion cell temperature, and O(2) flow rate for emission characteristics comparison. It is found that the Cd incorporation on the ZnO template is generally lower, when compared with that on the GaN template, such that the O(2) flow rate needs to be reduced for stoichiometric CdZnO/ZnO QW growth on the ZnO template. Besides the wurtzite (wt) CdZnO structure, the rock-salt (rs) CdZnO structure exists in the CdZnO well layers when the total Cd content is high. The rs structure may dominate over the wt structure in photoluminescence intensity when the total Cd content is high. In either group of samples on the GaN and ZnO templates, the emission efficiency first increases and then decreases with increasing total Cd content. The low emission efficiency at low (high) Cd content is attributed to the weaker quantum confinement (the poorer crystal quality) of the QWs. The emission efficiencies of the QW samples on the GaN template are generally higher than those on the ZnO template. The carrier localization behavior in a CdZnO/ZnO QW, grown on either GaN or ZnO template, is significantly weaker than that in an InGaN/GaN QW. The strength of the quantum-confined Stark effect generally increases with increasing Cd content in either group of samples on the GaN and ZnO templates.

Effects of overgrown p-layer on the emission characteristics of the InGaN/GaN quantum wells in a high-indium light-emitting diode.

The counteraction between the increased carrier localization effect due to the change of composition nanostructure in the quantum wells (QWs), which is caused by the thermal annealing process, and the enhanced quantum-confined Stark effect in the QWs due to the increased piezoelectric field, which is caused by the increased p-type layer thickness, when the p-type layer is grown at a high temperature on the InGaN/GaN QWs of a high-indium light-emitting diode (LED) is demonstrated. Temperature- and excitation power-dependent photoluminescence (PL) measurements are performed on three groups of sample, including 1) the samples with both effects of thermal annealing and increased p-type thickness, 2) those only with the similar thermal annealing process, and 3) those with increased overgrowth thickness and minimized thermal annealing effect. From the comparisons of emission wavelength, internal quantum efficiency (IQE), spectral shift with increasing PL excitation level, and calibrated activation energy of carrier localization between various samples in the three groups, one can clearly see the individual effects of thermal annealing and increased p-type layer thickness. The counteraction leads to increased IQE and blue-shifted emission spectrum with increasing p-type thickness when the thickness is below a certain value (20-nm p-AlGaN plus 60-nm p-GaN under our growth conditions). Beyond this thickness, the IQE value decreases and the emission spectrum red shifts with increasing p-type thickness.

Acoustic Features of Oral Reading Prosody and the Relation With Reading Fluency and Reading Comprehension in Taiwanese Children.

PURPOSE: The study aimed to examine whether oral reading prosody-the use of acoustic features (e.g., pitch and duration variations) when reading passages aloud-predicts reading fluency and comprehension abilities. METHOD: We measured vocabulary, syntax, word reading, reading fluency (including rate and accuracy), reading comprehension (in Grades 3 and 4), and oral reading prosody in Taiwanese third-grade children (N = 109). In the oral reading prosody task, children were asked to read aloud a passage designed for third graders and then to answer forced-choice questions. Their oral reading prosody was measured through acoustic analyses including the number of pause intrusions, intersentential pause duration, phrase-final comma pause duration, child-adult pitch match, and sentence-final pitch change. RESULTS: Analyses of variance revealed that children's number of pause intrusions differed as a function of word reading. After controlling for age, vocabulary and syntactic knowledge, and word reading, we found that different dimensions of oral reading prosody contributed to reading rate. In contrast, the number of pause intrusions, phrase-final comma pause duration, and child-adult pitch match predicted reading accuracy and comprehension. CONCLUSIONS: Oral reading prosody plays an important role in children's reading fluency and reading comprehension in tone languages like Mandarin. Specifically, children need to read texts prosodically as evidenced by fewer pause intrusions, shorter phrase-final comma pause duration, and closer child-adult pitch match, which are early predictive makers of reading fluency and comprehension.

A pilot meta-analysis on self-reported efficacy of neurofeedback for adolescents and adults with ADHD.

Self-reported effectiveness of electroencephalogram-based neurofeedback (EEG-NF) against the core symptoms of attention-deficit hyperactivity disorder (ADHD) in adolescents/adults remains unclear. We searched PubMed, Embase, ClinicalKey, Cochrane CENTRAL, ScienceDirect, Web of Science, and ClinicalTrials.gov from inception to August 2021 for randomized clinical trials (RCTs) of EEG-NF with self-reported ADHD symptom ratings. Comparators included participants on waitlist/treatment as usual (TAU) or receiving other interventions. Of the 279 participants (mean age = 23.48; range: 6-60) in five eligible RCTs, 183 received EEG-NF treatment. Forest plot demonstrated no difference in inattention (SMD = -0.11, 95% CI -0.39-0.18, p = 0.46), total score (SMD = -0.08, 95% CI -0.36-0.2, p = 0.56), and hyperactivity/impulsivity (SMD = 0.01, 95% CI -0.23-0.25, p = 0.91) between EEG-NF and comparison groups. Nevertheless, compared with waitlist/TAU, EEG-NF showed better improvement in inattention (SMD = -0.48, 95% CI -0.9--0.06, p = 0.03) but not hyperactivity/impulsivity (SMD = -0.03, 95% CI -0.45-0.38, p = 0.87). Follow-up 6-12 months demonstrated no difference in inattention (SMD = -0.01, 95% CI -0.41-0.38, p = 0.94), total score (SMD = 0.22, 95% CI -0.08-0.52, p = 0.15), and hyperactivity/impulsivity (SMD = -0.01, 95% CI -0.27-0.26, p = 0.96) between the two groups. Dropout rate also showed no difference (RR = 1.05, 95% CI 0.82-1.33, p = 0.72). Our results support EEG-NF for improving inattention in adolescents/young adults, although its effectiveness against hyperactivity/impulsivity remains inconclusive.

Impact of parental rheumatoid arthritis on risk of autism spectrum disorders in offspring: A systematic review and meta-analysis.

Background: To investigate the association of risk of offspring autism spectrum disorder (ASD) with both maternal and paternal rheumatoid arthritis (RA). Methods: The Embase, Medline, Cochrane Library databases were searched for studies that investigated the association of parental RA with risk of offspring ASD. The primary outcome was the associations of maternal/paternal RA with the risk of offspring ASD. Subgroup analyses were conducted based on the timing of maternal RA diagnosis (i.e., before/after childbirth) and geographical location (i.e., Western vs. Asian countries) of studies. Results: Ten studies published between 2005 and 2022 involving 6,177,650 participants were analyzed. Pooled results revealed a significant association between maternal RA and the risk of ASD (OR = 1.246, p < 0.001, 10 studies), while there was no association of paternal RA with the risk of offspring ASD (OR = 1.104, p = 0.253, four studies). Subgroup analysis demonstrated no correlation between diagnosis of maternal RA before childbirth and the risk of offspring ASD (OR = 1.449, p = 0.192, four studies), while there was a significant association of maternal RA regardless of the timing of diagnosis with the risk of offspring ASD (OR = 1.227, p = 0.001, six studies). Subgroup analysis on geographical location showed a significant association of maternal RA with the risk of offspring ASD regardless of the study location (all p < 0.05). Conclusion: Our findings supported an association between maternal RA and an elevated risk of ASD in offspring. However, given the limited numbers of studies investigating the risk of offspring ASD in mothers diagnosed with RA before childbirth, further studies are warranted to elucidate this issue. Systematic review registration: [www.crd.york.ac.uk/prospero/], identifier [CRD42022358470].

Surface electroencephalographic neurofeedback improves sustained attention in ADHD: a meta-analysis of randomized controlled trials.

BACKGROUND: The efficacy of surface electroencephalographic neurofeedback (EEG-NF) for improving attentional performance assessed by laboratory measures in patients with attention-deficit/hyperactivity disorder (ADHD) remains unclear. METHODS: Following the PRISMA guidelines, the PubMed, Embase, ClinicalKey, Cochrane CENTRAL, ScienceDirect, Web of Science, and ClinicalTrials.gov databases were systematically searched for randomized controlled trials on the efficacy of surface EEG-NF against ADHD focusing on attentional performance evaluated by laboratory measures from inception to January 2022. RESULTS: Fourteen eligible studies were analyzed. Of the 718 participants involved, 429 diagnosed with ADHD received EEG-NF treatment. Significant improvement in attentional performance in ADHD subjects receiving EEG-NF was noted compared to their comparators (p < 0.01). Besides, there was a significant EEG-NF-associated beneficial effect on sustained attention (Hedges' g = 0.32, p < 0.01), whereas the impact on selective attention (p = 0.57) and working memory (p = 0.59) was limited. Moreover, protocol including beta wave enhancement was superior to that only focusing on reducing theta/beta ratio or modulation of slow cortical potential. Subgroup analyses showed that three sessions per week of EEG-NF produced the best effect, while the efficacy of surface EEG-NF was much poorer (Hedges' g = 0.05) when only studies that blinded their participants from knowledge of treatment allocation were included. No significant difference was noted in the improvement of attentional performance 6-12 months after EEG-NF intervention (n = 3, p = 0.42). CONCLUSIONS: Our results demonstrated the satisfactory effectiveness of surface EEG-NF for improving sustained attention, especially when beta wave enhancement was included, despite its failure to sustain a long-term effect. Further large-scale trials are warranted to support our findings.

Additive effects of EEG neurofeedback on medications for ADHD: a systematic review and meta-analysis.

To elucidate possible additive effects of electroencephalogram-based neurofeedback (EEG-NF) on medications against the core symptoms of attention-deficit/hyperactivity disorder (ADHD), randomized controlled trials (RCTs) were retrieved from electronic databases including PubMed, EMBASE, ClinicalKey, Cochrane CENTRAL, ScienceDirect, and ClinicalTrials.gov from inception to March 2022. The primary outcomes were changes in ADHD symptoms (i.e., global, inattention, hyperactivity/impulsivity) assessed with validated rating scales, while secondary outcome was all-cause discontinuation rate. Meta-analysis of five RCTs involving 305 participants [Median age = 9.285 years (range 8.6-11.05)] with a median follow-up of 12 weeks showed additive effects of EEG-NF on medications from parents' observations against ADHD global symptoms (Hedges' g = 0.2898, 95%CI [0.0238; 0.5557]) and inattention symptoms (Hedges' g = 0.3274, 95%CI [0.0493; 0.6055]). However, additive effects failed to sustain six months after EEG-NF intervention. Besides, there was no difference in improvement of hyperactivity/impulsivity from parents' observation, attentional performance, and all-cause discontinuation rate between the two groups. Our results supported additional benefits of combining EEG-NF with medications compared to medication alone in treating global symptoms and symptoms of inattention in ADHD patients. Nevertheless, given a lack of evidence showing a correlation between underlying physiological changes and small effect sizes in our preliminary results, further studies are warranted to support our findings.

Cross-linguistic contributions of acoustic cues and prosodic awareness to first and second language vocabulary knowledge.

Background: Several studies have revealed that prosody contributes to reading acquisition. However, the relation between awareness of prosodic patterns and different facets of language ability (e.g., vocabulary knowledge) in school-age children remains unclear. This study measured awareness of prosodic patterns using non-speech and speech stimuli. Methods: Hierarchical regression equations were computed to examine links among auditory cues (e.g., amplitude rise time, pitch contour and interval), language-specific prosodic awareness and children's vocabulary knowledge in Mandarin as a first language (L1) and English as a second language (L2) after controlling for age and nonverbal IQ. Results: Results revealed that (1) amplitude envelope rise time discrimination predicted Mandarin L1 and English L2 vocabulary knowledge, (2) Mandarin tone perception and rhyme awareness did not predict Mandarin L1 vocabulary and (3) English rhyme awareness better predicted English L2 vocabulary than did stress production. Conclusion: Our findings suggest that (1) amplitude rise time, which signals syllable boundaries, is a cross-linguistic predictor of vocabulary knowledge and (2) the development of English L2 vocabulary may depend on phonological more than prosodic awareness.

Mandarin-speaking preschoolers' pitch discrimination, prosodic and phonological awareness, and their relation to receptive vocabulary and reading abilities.

Cross-linguistic studies have reported that prosodic pattern awareness (e.g., lexical stress and lexical tone) is more important to reading acquisition than phonological awareness. However, few longitudinal studies have been conducted to explore the relations between these variables. This study examined preschoolers' pitch discrimination, prosodic and phonological awareness, and their connection to receptive vocabulary in preschool and reading abilities in first grade. Findings reveal (1) children improve their pitch discrimination and prosodic awareness from preschool to fourth grade; (2) pitch interval discrimination (frequency separation between tones) contributes to receptive vocabulary whereas pitch contour discrimination (patterns of rising and falling pitch) predicts word reading; (3) phonological awareness accounts for more variability in receptive vocabulary than prosodic awareness; whereas the reverse was found for word reading and reading comprehension. Together, prosody and its acoustic cue (i.e., pitch) play a vital role in learning to read Mandarin.

A systematic review and meta-analysis on the clinical implications of probability discounting among individuals with Internet gaming disorder.

The significance of probability discounting (PD) among individuals with Internet gaming disorder (IGD) remains unclear. Following the PRISMA guidelines, we systematically searched the PubMed, Embase, and ScienceDirect databases for English articles on Internet addiction that included comparison between individuals with and without IGD as well as probabilistic discounting task as the main outcome from January 1970 to July 2020 using the appropriate keyword strings. The primary outcome was the overall difference in rate of PD, while the secondary outcomes included the difference in PD with magnitude of probabilistic reward and response time of the PD task. Effect size (ES) was calculated through dividing the group means (e.g., h value or AUC) by the pooled standard deviations of the two groups. A total of five studies with 300 participants (i.e., IGD group, n = 150, mean age = 20.27 ± 2.68; healthy controls, n = 150, mean age = 20.70 ± 2.81) were analyzed. The IGD group was more willing to take risks in probabilistic gains but performances on probabilistic losses were similar between the two groups. The IGD group also exhibited a shorter response time (Hedge's g = - 0.51; 95%CI = - 0.87 to - 0.15). Meta-regression demonstrated a positive correlation between maximum reward magnitude and PD rate (p < 0.04). However, significant publication bias was noted among the included studies (Egger's test, p < 0.01). In conclusion, individuals with IGD seemed more impulsive in making risky decisions, especially when the potential gains were expected. Our findings not only supported the use of PD for assessing individuals with IGD but may also provide new insights into appropriate interventions.