auditory

听觉
  • 文章类型: Journal Article
    背景:在注意缺陷/多动障碍(ADHD)中,抑制性控制不良是其主要特征之一,眼球运动抑制受损被认为是该疾病的潜在生物标志物。虽然听觉白噪声已经证明了在这个群体中增强工作记忆的能力,视觉白噪声仍未被探索,两种类型的白噪声刺激对动眼抑制的影响也是如此。
    目的:这项交叉研究旨在探讨听觉和视觉白噪声对ADHD儿童和典型发育(TD)儿童动眼抑制的影响。该研究将调查不同噪声水平的影响(25%和50%的视觉,78dB听觉),和性能将在有和没有噪声刺激的情况下进行评估。我们假设暴露于白噪声会改善多动症儿童的表现,并损害TD儿童的表现。
    方法:记忆引导扫视和长时间注视,以检测ADHD中动眼神经抑制的敏感性而闻名,将用于评估性能。被诊断患有多动症的儿童,停药24小时,并招募了没有精神疾病的TD儿童进行研究。
    结果:数据收集于2023年10月启动,并于2024年2月结束。共有97名参与者报名参加,第一个结果预计在2024年9月至11月之间。
    结论:这项研究将检查跨模态感觉刺激是否可以增强执行功能,特别是眼球运动控制,患有ADHD的儿童。此外,这项研究将探讨两组听觉和视觉噪声效应之间的潜在差异。我们的目标是确定理解如何使用噪声来提高认知能力的含义。
    背景:ClinicalTrials.govNCT06057441;https://clinicaltrials.gov/study/NCT06057441。
    DERR1-10.2196/56388。
    BACKGROUND: In attention-deficit/hyperactivity disorder (ADHD), poor inhibitory control is one of the main characteristics, with oculomotor inhibition impairments being considered a potential biomarker of the disorder. While auditory white noise has demonstrated the ability to enhance working memory in this group, visual white noise is still unexplored and so are the effects of both types of white noise stimulation on oculomotor inhibition.
    OBJECTIVE: This crossover study aims to explore the impact of auditory and visual white noise on oculomotor inhibition in children with ADHD and typically developing (TD) children. The study will investigate the impact of different noise levels (25% and 50% visual, 78 dB auditory), and performance will be evaluated both with and without noise stimulation. We hypothesize that exposure to white noise will improve performance in children with ADHD and impair the performance for TD children.
    METHODS: Memory-guided saccades and prolonged fixations, known for their sensitivity in detecting oculomotor disinhibition in ADHD, will be used to assess performance. Children diagnosed with ADHD, withdrawing from medication for 24 hours, and TD children without psychiatric disorders were recruited for the study.
    RESULTS: Data collection was initiated in October 2023 and ended in February 2024. A total of 97 participants were enrolled, and the first results are expected between September and November 2024.
    CONCLUSIONS: This study will examine whether cross-modal sensory stimulation can enhance executive function, specifically eye movement control, in children with ADHD. In addition, the study will explore potential differences between auditory and visual noise effects in both groups. Our goal is to identify implications for understanding how noise can be used to improve cognitive performance.
    BACKGROUND: ClinicalTrials.gov NCT06057441; https://clinicaltrials.gov/study/NCT06057441.
    UNASSIGNED: DERR1-10.2196/56388.
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  • 文章类型: Journal Article
    在阅读文学作品时,可以看出,对残疾人参与体育运动的动机研究还不够。本研究旨在研究听力受损和身体残疾运动员的运动参与动机。本研究为横断面研究。该研究的研究小组由年龄在18-47岁之间的身体和听力受损者组成。该研究小组的参与者包括253名志愿者残疾人,其中150人是男性,103人是女性。运动参与动机量表用于残疾人个人。量表由3维组成,是5点Likert类型。研究结果表明,听力受损的人有较高的高中毕业率,身体残疾的人有较高的学士学位率,但是听力和身体残疾的初等教育率没有变化。听力和身体残疾人士的身体活动参与有所不同,据观察,听力受损的人参加了更多的体育活动。肢体残疾人的幸福感明显优于听力受损者。作为结论,据观察,参与体育动机最低的人是小学毕业生,福利高的人参与体育的动机高。
    While reading the literature, it is seen that there are not enough studies on the motivation of disabled individuals to participate in sports. This study aims to examine the sports participation motivations of hearing impaired and physically disabled athletes. This study was a cross-sectional study. The research group of the study consists of physically and hearing-impaired individuals between the ages of 18-47. The participants of this research group consisted of 253 volunteer disabled individuals, 150 of whom were men and 103 of whom were women. Sports participation motivation scale was used for disabled individuals. The scale consists of 3 dimensions and is a 5-point Likert type. The results of the study showed that hearing-impaired people have a higher high school rate and physically person with disability have a higher bachelor\'s degree rate, but the primary education rate did not change between hearing and physically person with disability. Physical activity participation differed between hearing and physically person with disability, and it was observed that hearing-impaired people participated in more physical activities. The level of well-being of the physically disabled was significantly better than the hearing impaired. As conclusion, it is observed that the people with the lowest motivation to participate in sports are primary school graduates and those with high welfare have a high motivation to participate in sports.
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  • 文章类型: Meta-Analysis
    背景:卒中是成人获得性残疾最普遍的原因之一。最近的实验研究报告了基于WiiFit的反馈对改善中风幸存者的整体平衡和步态的有益影响。
    方法:我们使用以下关键字对文献进行了系统回顾,以检索数据:反馈,生物反馈,中风,视觉,听觉,触觉,虚拟现实,电子游戏康复,任天堂Wii中风,电子游戏中风,exergamestroke,任天堂Wii康复,balance,和步态。Berg平衡量表(BBS)关于WiiFit为基础的康复伴随常规治疗效果的RCT的回顾和荟萃分析,定时和去(TUG),功能达到测试,并对中风幸存者进行步态(速度)。
    目的:确定基于WiiFit的反馈结合传统疗法对中风幸存者平衡和步态的影响。
    结果:纳入22项研究。荟萃分析结果显示,使用TUG测量的功能性步行有统计学意义的改善(p<0.0001),使用BBS测量的天平(p=0.0001),和功能达到测试(p=0.01),但不是在基于WiiFit的反馈之后的步态速度(p=0.32)。关于反馈的类型,当使用视觉和听觉混合反馈时,BBS评分存在显著差异.
    结论:基于WiiFit的反馈对改善中风患者的平衡具有预期效果,使其成为物理治疗的合适辅助手段。
    Stroke is one of the most widespread reasons for acquired adult disability. Recent experimental studies have reported the beneficial influence of Wii Fit-based feedback on improving overall balance and gait for stroke survivors.
    We conducted a systematic review of the literature using the following keywords to retrieve the data: feedback, biofeedback, stroke, visual, auditory, tactile, virtual reality, videogame rehabilitation, Nintendo Wii stroke, videogame stroke, exergame stroke, Nintendo Wii rehabilitation, balance, and gait. A review and meta-analysis of RCTs regarding Wii Fit-based rehabilitation accompanied by conventional therapy effects on Berg Balance Scale (BBS), Timed Up and Go (TUG), functional reach test, and gait (speed) in stroke survivors was conducted.
    To determine the impacts of Wii Fit-based feedback combined with traditional therapy on balance and gait in stroke survivors.
    22 studies were included. The meta-analysis results revealed statistically significant improvements in functional ambulation measured using TUG (p < 0.0001), balance measured using BBS (p = 0.0001), and functional reach test (p = 0.01), but not in gait speed (p = 0.32) following Wii Fit-based feedback. Regarding the types of feedback, significant differences were found in BBS scores when mixed visual and auditory feedback was used.
    Wii Fit-based feedback has desired effects on improving balance in stroke patients, making it a suitable adjunct to physical therapy.
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  • 文章类型: Randomized Controlled Trial
    目的:我们旨在研究在非临床人群中直接操纵模拟语音听觉反应方式对情绪和认知结果的影响。
    方法:具有一个独立变量的受试者间设计,反应风格(有两个层面:有意识的接受和注意力的回避)。因变量是主观痛苦和焦虑(主要结果)以及持续注意力任务的表现(次要结果)。
    方法:参与者被随机分配到两种反应方式中的一种(注意接受与注意回避)。他们在听语音听觉模拟的同时完成了计算机注意力任务(连续执行任务)。参与者在完成持续关注任务之前和之后评估了他们的焦虑和痛苦经历,该任务用于衡量他们的准确性和响应时间。
    结果:一百一十参与者参加了(注意接受(n=54);注意回避(n=47))。测试后的痛苦和焦虑评分没有统计学上的显著组间差异,对计算机注意力任务的正确响应率或响应时间。参与者报告了一系列不同的反应方式,从避免到接受,但这与他们指定的实验条件无关。因此,对任务说明的依从性很低。
    结论:我们无法从这项研究中得出结论,实验诱导人们在认知要求苛刻的条件下以回避或接受的方式对声音做出反应是否会影响他们的情绪或认知结果。进一步的研究应集中在开发更强大和可靠的程序,以在实验条件下诱导反应方式的差异。
    We aimed to investigate the effects of directly manipulating response style to simulated voice hearing on emotional and cognitive outcomes in a non-clinical population.
    A between-subjects design with one independent variable, response style (with two levels: mindful acceptance vs attentional avoidance). The dependent variables were subjective distress and anxiety (primary outcomes) and performance on a sustained attention task (secondary outcomes).
    Participants were randomly assigned to one of two response styles (mindful acceptance vs. attentional avoidance). They completed a computerised attention task (continuous performance task) whilst listening to a simulation of voice hearing. Participants rated their experience of anxiety and distress before and after completing the sustained attention task which was used to measure their accuracy and response times.
    One hundred and one participants took part (mindful acceptance (n = 54); attentional avoidance (n = 47)). There were no statistically significant group differences on post-test distress and anxiety scores, correct response rate or response times on the computerised attention task. Participants reported a range of different response styles along the spectrum of avoidance to acceptance, but this had no association with their assigned experimental condition. Adherence to task instructions was therefore low.
    We are unable to conclude from this study whether experimentally inducing people to respond to voices under cognitively demanding conditions in an avoidant or accepting way has an impact on their emotional or cognitive outcomes. Further research should focus on the development of more robust and reliable procedures for inducing differences in response style under experimental conditions.
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  • 文章类型: Journal Article
    耳蜗核接收来自听觉和非听觉系统的大量输入。耳蜗核的这种广泛的神经支配涉及声源定位以及听觉信号与其他感觉方式的整合。耳蜗背侧核也可能在耳鸣中起重要作用。虽然它的大体解剖结构和功能已被广泛研究,耳蜗核的代谢组仍然知之甚少,特别是在听觉成熟的不同阶段。这里,我们提出了一种用于大鼠耳蜗核的非靶向代谢组学分析的方案,然后讨论出生后第14天(PD)(听力开始)和PD60(听力成熟)之间大鼠耳蜗核代谢组的差异。通过液相色谱-串联质谱法(LCMS)分析从PD14或PD60的大鼠收集的耳蜗核样品。总的来说,共鉴定出344种代谢物。主成分分析和正交偏最小二乘判别分析表明,这两个阶段的代谢谱具有不同的分布模式。此外,在PD60与PD60时鉴定出91种显着差异的代谢物(62种上调和29种下调)。PD14.N-乙酰天冬氨酰谷氨酸(NAAG),γ-氨基丁酸(GABA),牛磺酸,一磷酸腺苷(AMP),和胆碱在PD60时显著上调。途径富集分析表明,丙氨酸,天冬氨酸,和谷氨酸代谢;甘氨酸,丝氨酸,和苏氨酸代谢;哺乳动物雷帕霉素靶蛋白(mTOR)信号通路;AMP激活的蛋白激酶(AMPK)信号通路可能参与耳蜗核成熟过程中的关键发育事件。一起来看,本研究中确定的代谢谱可能导致识别和理解与听力成熟有关的特定关键生物标志物和代谢途径。此外,基于LC-MS的代谢组学为表征听觉成熟和听觉疾病提供了替代方法。
    The cochlear nucleus receives numerous inputs from auditory and nonauditory systems. This extensive innervation of the cochlear nucleus is involved in sound source localization and the integration of auditory signals with other sensory modalities. The dorsal cochlear nucleus may also have an important role in tinnitus. Although its gross anatomy and function have been extensively studied, the metabolome of the cochlear nucleus remains poorly understood, particularly at different stages of auditory maturity. Here, we present a protocol for untargeted metabolomics analysis of the rat cochlear nucleus, then discuss differences in the metabolome of the rat cochlear nucleus between postnatal day (PD) 14 (hearing onset) and PD60 (hearing maturation). Cochlear nucleus samples collected from rats at PD14 or PD60 were analyzed by liquid chromatography-tandem mass spectrometry (LCMS). In total, 344 metabolites were identified. Principal component analysis and orthogonal partial least-square discriminant analysis showed that the metabolic profiles at these two stages had distinct distribution patterns. Moreover, 91 significantly differential metabolites (62 upregulated and 29 downregulated) were identified at PD60 vs. PD14. N-acetylaspartylglutamic acid (NAAG), γ-aminobutyric acid (GABA), taurine, adenosine monophosphate (AMP), and choline were significantly upregulated at PD60. Pathway enrichment analysis suggested that alanine, aspartate, and glutamate metabolism; glycine, serine, and threonine metabolism; the mammalian target of rapamycin (mTOR) signaling pathway; and the AMP-activated protein kinase (AMPK) signaling pathway may be involved in key developmental events during maturation of the cochlear nucleus. Taken together, the metabolic profiles identified in this study could lead to the identification and understanding of specific key biomarkers and metabolic pathways involved in the maturation of hearing. Moreover, LC-MS-based metabolomics provides an alternative approach for the characterization of auditory maturation and auditory diseases.
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  • 文章类型: Journal Article
    过渡到父母身份不仅是一种巨大的喜悦,而且对母亲(尤其是初生)在身体和心理上都有很大的压力。这项研究的目的是提高首次生育夫妇的信心,增加父母的依恋,缓解焦虑,促进母婴分娩结局。在随机对照试验设计中,我们采用简单随机分组方法纳入300对完成第24周妊娠的首次生育夫妇(150对对照组和实验组).嵌套是指完全包含的产前锻炼,踢图监测,以及使用预演模仿者。VARK策略表明视觉(通过演示展示的信息),听觉(对通过讲座听到或说出的信息的偏好),阅读(信息显示为单词,基于文本的输入和输出),和动觉(偏好通过经验和实践收集信息,模拟真实,通过具体的个人经历)对实验组执行了策略和常规护理。在第24周的测试前和第32周的测试后,使用Condon的父母依恋量表和围产期焦虑量表收集数据,分别妊娠33-34周和36-38周,干预后通过自我给药方法。通过分娩后24至48小时内的医疗记录确定产妇和胎儿的结局。干预后实验组的测试前父母依恋平均得分显着增加(母亲:61.44±3.27至77.89±32.44,父亲:51.44±1.93至58.89±24.86)与对照组相比(测试前得分母亲:61.41±2.98至66.43±31.55,父亲:51.24±3.95至49.30±23.55<0.001)。与对照组(母亲=46.22±5.12至25.03±13.89,父亲=22.62±3.39至17.92)相比,试验组干预后的考前焦虑均值显著降低(母亲:44.60±3.92至16.57±8.18,父亲:22.55±3.41至6.28±4.47),p<0。001.研究结果建议在现有的育龄夫妇动手分娩准备课程中提倡VARK策略。
    The transition to parenthood is not only a tremendous joy but also great stress to a mother (especially a primigravida) both physically and psychologically. The purpose of this research is to improve confidence in first-time childbearing couples, increase parental attachment, alleviate anxiety and promote the maternal and neonatal outcomes of delivery. In a randomized controlled trial design, simple randomization was utilized to enroll 300 first-time childbearing couples who have completed the 24th week of gestation (150 in control and experimental arms). Nested refers to fully contained antenatal exercises, kick chart monitoring, and the use of a preggy imitator. VARK strategies indicate visual (information exhibited through demonstration), auditory (preference for information that is heard or spoken through lectures), read (information displayed as words, text-based input and output), and kinesthetic (preference for gathering information through experience and practice, simulated real, through concrete personal experiences) strategies along with routine care were executed on the experimental group. Data was collected using Condon\'s Parental Attachment Scale and Perinatal Anxiety Scale during the pre-test at the 24th week and post-tests at the 32nd, 33-34, and 36-38 weeks of gestation respectively, after the intervention through the self-administration method. Maternal and fetal outcomes were identified through medical records within 24 to 48 hours after delivery. The pre-test parental attachment mean score was significantly increased in post-test (Mothers: 61.44±3.27 to 77.89±32.44, fathers: 51.44±1.93 to 58.89±24.86) the for experimental group after the intervention compared to the control group (Pre-test score mother: 61.41±2.98 to 66.43±31.55, father: 51.24±3.95 to 49.30± 23.55) at p <0.001. The pre-test anxiety mean score was significantly reduced after intervention (mother: 44.60±3.92 to 16.57± 8.18, father: 22.55±3.41 to 6.28±4.47) for the experimental group compared to the control group (mother=46.22±5.12 to 25.03± 13.89, father=22.62±3.39 to 17.92± 9.92) at p <0. 001. The study findings recommend VARK strategies to be advocated with existing hands-on childbirth preparation classes for childbearing couples.
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  • 文章类型: Journal Article
    这项研究描述了同一组自闭症儿童(n=10)对语音的皮层下听觉脑干反应(语音-ABR)和皮层听觉处理(P1和失配否定性;MMN)及其与自闭症特征和感觉特征的关系年龄和非语言智商与典型发育(TD)同龄人(n=21)相匹配。没有注意到语音-ABR差异,但是自闭症患者的P1更大,MMN反应更快。相关性表明,较大的P1振幅和MMN反应与更大的自闭症特征和更多的感觉特征相关。这些发现强调了听觉系统的复杂性及其与自闭症行为的关系,同时也强调了测量和发展匹配的重要性。
    This study characterizes the subcortical auditory brainstem response (speech-ABR) and cortical auditory processing (P1 and Mismatch Negativity; MMN) to speech sounds and their relationship to autistic traits and sensory features within the same group of autistic children (n = 10) matched on age and non-verbal IQ to their typically developing (TD) peers (n = 21). No speech-ABR differences were noted, but autistic individuals had larger P1 and faster MMN responses. Correlations revealed that larger P1 amplitudes and MMN responses were associated with greater autistic traits and more sensory features. These findings highlight the complexity of the auditory system and its relationships to behaviours in autism, while also emphasizing the importance of measurement and developmental matching.
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  • 文章类型: Journal Article
    感觉异常是自闭症和精神分裂症的特征。在自闭症中,感觉神经反应中更大的试验间变异性(TTV)表明该系统更不稳定.然而,这些发现仅在幅度上而不是在神经反应的时间上被确定,在精神分裂症中还没有得到充分的探索。在自闭症的听觉失配阴性(MMN)中评估了事件相关电位振幅和试验间相干性(ITC)的TTV,精神分裂症,和控制。MMN在自闭症中最大,在精神分裂症中最小,与对照组相比,自闭症和精神分裂症患者的TTV更高。ITC没有差异。更大的TTV似乎是自闭症和精神分裂症的特征,暗示了几种可能导致感觉不稳定的神经机制。
    Sensory abnormalities are characteristic of autism and schizophrenia. In autism, greater trial-to-trial variability (TTV) in sensory neural responses suggest that the system is more unstable. However, these findings have only been identified in the amplitude and not in the timing of neural responses, and have not been fully explored in schizophrenia. TTV in event-related potential amplitudes and inter-trial coherence (ITC) were assessed in the auditory mismatch negativity (MMN) in autism, schizophrenia, and controls. MMN was largest in autism and smallest in schizophrenia, and TTV was greater in autism and schizophrenia compared to controls. There were no differences in ITC. Greater TTV appears to be characteristic of both autism and schizophrenia, implicating several neural mechanisms that could underlie sensory instability.
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  • 文章类型: Journal Article
    未经证实:耳鸣是常见症状,影响约10-15%的成年人口。当来自体感系统的输入可以影响和/或引起耳鸣时,这种类型的主观耳鸣称为体感耳鸣。最近,一种新型的双峰神经刺激治疗对于体感耳鸣人群中的特定亚组显示出有希望的结果。是的,然而,不清楚这种双峰刺激对其他类型的主观性耳鸣患者是否也有效。
    UNASSIGNED:本研究的目的是评估非侵入性双峰听觉-体感刺激在降低主观性耳鸣人群耳鸣严重程度方面的可行性和有效性。
    UNASSIGNED:慢性主观性耳鸣患者从安特卫普大学医院耳鼻喉科招募。体感刺激通过经皮神经电刺激(TENS)进行,并通过耳机与听觉刺激相结合。该治疗包括连续3周的六个疗程,每周两次,每次30分钟。在最后一次治疗后9-12周安排随访测量。耳鸣功能指数(TFI)评分的变化,评估耳鸣负担和对生活质量影响的问卷,是主要结果指标。
    未经证实:29名患者纳入研究。线性混合效应模型用于分析双峰治疗的疗效。该分析的结果显示,当与基线相比时,在随访访视时平均TFI得分在统计学上显著降低(降低6、9分)。调节耳鸣的能力对治疗结果没有影响。
    UNASSIGNED:我们的研究表明,双峰刺激是一种可行且安全的耳鸣治疗方法。该方法可能是一些耳鸣参与者的有效治疗方法,尤其是那些伴有颈部/颞下颌疾病的人,虽然,这次审判的证据相当薄弱。需要额外的研究来建立最佳的治疗方案,以及选择最合适的纳入标准。
    UNASSIGNED: Tinnitus is a common symptom, affecting about 10-15% of the adult population. When input from the somatosensory system can influence and/or elicit tinnitus, this type of subjective tinnitus is called somatosensory tinnitus. Recently, a new type of bimodal neurostimulation treatment has shown promising results for a specific subgroup within the somatosensory tinnitus population. It is, however, not clear if this bimodal stimulation is also effective in patients with other types of subjective tinnitus.
    UNASSIGNED: The aim of this study was to evaluate the feasibility and efficacy of non-invasive bimodal auditory-somatosensory stimulation in reducing tinnitus severity among a general population of people with subjective tinnitus.
    UNASSIGNED: Chronic subjective tinnitus patients were recruited from the ENT department of the Antwerp University Hospital. Somatosensory stimulation was delivered by Transcutaneous Electrical Nerve Stimulation (TENS), and it was combined with auditory stimulation via headphones. The therapy comprised six sessions of thirty minutes twice a week for a period of 3 consecutive weeks. Follow up measurements were scheduled 9-12 weeks after the last treatment session. The change of the Tinnitus Functional Index (TFI) score, a questionnaire evaluating tinnitus burden and effects on the quality of life, was the primary outcome measure.
    UNASSIGNED: Twenty-nine patients were enrolled in the study. A linear mixed-effects model was used to analyze the efficacy of bimodal treatment. The results of this analysis showed a statistically significant decrease (by 6, 9 points) in average TFI score at the follow up visit when compared to baseline. The ability to modulate tinnitus did not have an influence on the treatment results.
    UNASSIGNED: Our study showed that bimodal stimulation is a feasible and safe method of tinnitus treatment. The method might be an effective treatment for some participants with tinnitus, especially those who have accompanying neck/temporomandibular problems, although, the evidence from this trial is quite weak. Additional research is needed toward establishing the optimal treatment protocol, as well as selecting the most appropriate inclusion criteria.
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  • 文章类型: Journal Article
    自闭症患者通常会出现一系列症状,包括异常的感觉敏感性。然而,关于自闭症感觉体验的感觉特征的报道相互矛盾,这些感觉特征通常取决于刺激的类型。这里,我们检查早期听觉处理到简单的音高变化和后期听觉处理的更复杂的情绪话语。我们测量了24名自闭症成年人和28名对照者的脑电图。首先,音调(1046.5Hz/C6,1108.7Hz/C#6或1244.5Hz/D#6)在音高改变之前重复三次或九次。第二,在情绪改变之前,高兴或沮丧的话语重复了三到六次。为了回应简单的音调,与对照组相比,孤独症组在9项标准后表现出更大的错配负性(MMN),并产生更大的试验间变异性(TTV).为了回应韵律的话语,与对照组相比,自闭症组的P3反应较小。ERPs与音高和ERPs与韵律之间没有显着相关性。一起,这表明自闭症患者的早期听觉处理是超敏感的,而对韵律信息的后期处理是低敏感的.不同的感官概况对自闭症感知体验的影响可能是确定行为治疗以减轻症状的关键。
    Individuals with autism typically experience a range of symptoms, including abnormal sensory sensitivities. However, there are conflicting reports on the sensory profiles that characterize the sensory experience in autism that often depend on the type of stimulus. Here, we examine early auditory processing to simple changes in pitch and later auditory processing of more complex emotional utterances. We measured electroencephalography in 24 adults with autism and 28 controls. First, tones (1046.5Hz/C6, 1108.7Hz/C#6, or 1244.5Hz/D#6) were repeated three times or nine times before the pitch changed. Second, utterances of delight or frustration were repeated three or six times before the emotion changed. In response to the simple pitched tones, the autism group exhibited larger mismatch negativity (MMN) after nine standards compared to controls and produced greater trial-to-trial variability (TTV). In response to the prosodic utterances, the autism group showed smaller P3 responses when delight changed to frustration compared to controls. There was no significant correlation between ERPs to pitch and ERPs to prosody. Together, this suggests that early auditory processing is hyper-sensitive in autism whereas later processing of prosodic information is hypo-sensitive. The impact the different sensory profiles have on perceptual experience in autism may be key to identifying behavioral treatments to reduce symptoms.
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