hallucinations

幻觉
  • 文章类型: Case Reports
    我们介绍了一名患有氯氮平耐药性分裂情感障碍的年轻女性,她接受了维持电惊厥治疗和多种抗精神病药的治疗,但仍有幻听。她患有出血性中风,继发于右颞上回动静脉畸形破裂,在紧急开颅手术中切除。尽管中风后有神经功能缺损,她报告说幻听停止了。大脑的磁共振成像显示右侧颞区的Wallerian变性。个性化神经调节干预可能是氯氮平耐药精神分裂症的更有效治疗选择。
    We present a young woman with clozapine-resistant schizoaffective disorder who was treated with maintenance electroconvulsive therapy and multiple antipsychotics but continued to have auditory hallucinations. She had a haemorrhagic stroke secondary to a ruptured arteriovenous malformation at the right superior temporal gyrus, which was excised during emergency craniotomy. Despite having neurological deficits after the stroke, she reported cessation of auditory hallucinations. Magnetic resonance imaging of the brain showed Wallerian degeneration over the right temporal region. Personalised neuromodulation intervention may be a more effective treatment option for clozapine-resistant schizophrenia.
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  • 文章类型: Journal Article
    背景:先前的研究建立了童年创伤和精神病之间的关联,但儿童创伤对HIV感染者(PLWH)精神病样经历(PLE)的影响以及这些关联中潜在的调节机制仍不清楚.
    目的:本研究旨在探讨儿童创伤对PLE的影响,以及污名和弹性在这种关系中的连锁调解作用。此外,我们探讨了当分别对幻觉经历(HE)和妄想经历(DE)进行建模时,上述关联是否不同.
    方法:样本包括333名门诊患者(95.2%为男性,法师=28.24±7.12)从湖南省招募的HIV感染者,中国;数据是通过横断面调查收集的。
    方法:使用SPSSPROCESS宏3.3软件检查了假设的链中介模型。
    结果:本研究检查了儿童创伤对HE和DE的各种影响机制。我们的研究结果表明,(a)儿童创伤直接对HEs产生负面影响,而病耻感和韧性的连锁中介效应无统计学意义。相反,(b)童年创伤对DEs没有直接影响,而是通过污名和复原力的连锁调解效应。
    结论:儿童创伤对HEs和DEs的两种不同途径的鉴定强调了在有儿童创伤史的PLWH中进行针对性预防和干预的重要性。
    BACKGROUND: Previous research established the associations between childhood trauma and psychosis, but the effects of childhood trauma on psychotic-like experiences (PLEs) among people living with HIV (PLWH) and the potential mediation mechanisms in these associations remain unclear.
    OBJECTIVE: This study aimed to investigate the effects of childhood trauma on PLEs, as well as the chain mediation roles of stigma and resilience in this relationship. Furthermore, we explored whether the aforementioned associations differed when hallucinatory experiences (HEs) and delusional experiences (DEs) were separately modeled.
    METHODS: The sample included 333 outpatients participants (95.2 % males, Mage = 28.24 ± 7.12) living with HIV recruited from Hunan Province, China; and data were collected with a cross-sectional survey.
    METHODS: The hypothesized chain mediation models were examined using SPSS PROCESS macro 3.3 software.
    RESULTS: Various influencing mechanisms of childhood trauma on HEs and DEs were examined in this study. Our results showed that, (a) childhood trauma directly exerted negative effect on HEs, while the chain mediation effect of stigma and resilience were not statistically significant. Conversely, (b) childhood trauma exerted no direct influence on DEs but rather through the chain mediation effect of stigma and resilience.
    CONCLUSIONS: The identification of two different routes between that childhood trauma can have on HEs and DEs highlighted the importance of tailored prevention and intervention among PLWH with a history of childhood trauma.
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  • 文章类型: Journal Article
    背景:持续的听觉言语幻觉(pAVHs)是精神分裂症(SCZ)的基本表现,然而,pAVHs和大脑结构之间的确切联系仍然存在争议。这项研究旨在探讨pAVHs与诊断为SCZ的个体中特定大脑区域内灰质体积(GMV)改变之间的潜在相关性。
    方法:76例SCZpAVHs患者(pAVH组),57例无AVH的SCZ患者(非AVH组),使用3T磁共振成像对83名健康对照(HC组)进行了研究。阳性和阴性综合征量表的P3幻觉项目用于评估pAVHs的严重程度。使用基于体素的形态计量学来分析三组之间的GMV概况。
    结果:与非AVH和HC组相比,pAVH组额颞叶皮质内GMV显著降低.相反,非AVH组和HC组之间的GMV没有显着差异。pAVHs的严重程度与GMV在多个地区呈负相关,包括右梭形,右颞下,右内侧眶额,右上额叶,和右颞极(p=0.0036,Bonferroni校正)。逐步线性回归分析显示,右颞极(β=-0.29,p=0.001)和右梭形(β=-0.21,p=0.01)的GMV与pAVHs的严重程度显着相关。
    结论:在额颞叶皮层内观察到GMV的广泛降低,特别是涉及右颞极和右梭形,这可能有助于慢性SCZ患者pAVHs的发病机制。
    BACKGROUND: Persistent auditory verbal hallucinations (pAVHs) are a fundamental manifestation of schizophrenia (SCZ), yet the exact connection between pAVHs and brain structure remains contentious. This study aims to explore the potential correlation between pAVHs and alterations in grey matter volume (GMV) within specific brain regions among individuals diagnosed with SCZ.
    METHODS: 76 SCZ patients with pAVHs (pAVH group), 57 SCZ patients without AVHs (non-AVH group), and 83 healthy controls (HC group) were investigated using 3 T magnetic resonance imaging. The P3 hallucination item of the Positive and Negative Syndrome Scale was used to assess the severity of pAVHs. Voxel-based morphometry was used to analyze the GMV profile between the three groups.
    RESULTS: Compared to the non-AVH and HC groups, the pAVH group exhibited extensive reduction in GMV within the frontotemporal cortex. Conversely, no significant difference in GMV was observed between the non-AVH and HC groups. The severity of pAVHs showed a negative correlation with GMV in several regions, including the right fusiform, right inferior temporal, right medial orbitofrontal, right superior frontal, and right temporal pole (p = 0.0036, Bonferroni correction). Stepwise linear regression analysis revealed that GMV in the right temporal pole (β = -0.29, p = 0.001) and right fusiform (β = -0.21, p = 0.01) were significantly associated with the severity of pAVHs.
    CONCLUSIONS: Widespread reduction in GMV is observed within the frontotemporal cortex, particularly involving the right temporal pole and right fusiform, which potentially contribute to the pathogenesis of pAVHs in individuals with chronic SCZ.
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    文章类型: Case Reports
    随着全球老龄化日益突出,神经认知障碍(NCD)发病率增加。NCD患者通常在一个或多个认知领域有损害,如注意力,规划,抑制,学习,记忆,语言,视觉感知,和空间或社交技能。研究表明,这些成年人中有50-80%会出现神经精神症状(NPS),比如冷漠,抑郁症,焦虑,去抑制,妄想,幻觉,和异常的运动行为。NCD和随后的NPS的发展需要训练有素的医疗专业人员和家庭成员的极大照顾。行为症状通常比认知变化更令人痛苦,导致护理人员痛苦/抑郁,更多的急诊室就诊和住院,甚至更早的制度化。这意味着需要早期识别NPS风险较高的个体,了解他们NCD的发展轨迹,探索治疗方式。在这种情况下的报告和审查,我们介绍了一名82岁的男性,因抑郁症的新发作症状而入院。焦虑,和迫害妄想.他没有明显的精神病史,他的病史对于需要多次手术和两次脑血管意外(CVA)的广泛缺血性血管疾病具有重要意义。在进一步评估中,病人被诊断患有严重NCD,血管亚型。我们讨论了NCD的鉴别诊断和NPS的发展,以解释临床医生对早期发现和了解NCD预后进行更彻底评估的重要性。
    As global aging becomes more prominent, neurocognitive disorders (NCD) incidence has increased. Patients with NCD usually have an impairment in one or more cognitive domains, such as attention, planning, inhibition, learning, memory, language, visual perception, and spatial or social skills. Studies indicate that 50-80% of these adults will develop neuropsychiatric symptoms (NPS), such as apathy, depression, anxiety, disinhibition, delusions, hallucinations, and aberrant motor behavior. The progression of NCD and subsequent NPS requires tremendous care from trained medical professionals and family members. The behavioral symptoms are often more distressing than cognitive changes, causing caregiver distress/depression, more emergency room visits and hospitalizations, and even earlier institutionalization. This signifies the need for early identification of individuals at higher risk of NPS, understanding the trajectory of their NCD, and exploring treatment modalities. In this case report and review, we present an 82-year-old male admitted to our facility for new-onset symptoms of depression, anxiety, and persecutory delusions. He has no significant past psychiatric history, and his medical history is significant for extensive ischemic vascular disease requiring multiple surgeries and two episodes of cerebrovascular accident (CVA). On further evaluation, the patient was diagnosed with major NCD, vascular subtype. We discuss differential diagnoses and development of NPS from NCD in order to explain the significance of more thorough evaluation by clinicians for early detection and understanding of NCD prognosis.
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  • 文章类型: Case Reports
    背景:特纳综合征(TS)是与部分或完全X单体异常相关的遗传性疾病;一些患者可能有更高的精神症状风险。Catatonia与多种具有复杂发病机制的危及生命的并发症有关;然而,TS患者很少出现精神病症状并最终发展为紧张症。该病例报告描述了与紧张症相关的TS的诊断和治疗过程。
    方法:在本研究中,我们报道了一个TS患者最初出现突然幻觉的病例,妄想,和情绪不稳定,其次是卡顿。
    方法:患者被诊断为:非特指紧张症;TS。
    方法:治疗包括联合服用艾司唑仑注射液和奥氮平,放置胃管和导尿管,并提供营养支持。
    结果:治疗后,病人的幻觉,妄想,紧张症消失了,没有残留的后遗症,社会功能恢复正常。
    结论:对于有精神病症状和紧张症的TS患者,全面评估是必要的,用抗精神病药和苯二氮卓类药物治疗是有效的。
    BACKGROUND: Turner syndrome (TS) is a genetic disorder associated with partial or complete monosomy X abnormalities; some patients may have a higher risk of psychiatric symptoms. Catatonia is associated with a wide range of life-threatening complications with complex pathogenesis; However, It very rare for patients with TS to develop psychotic symptoms and eventually progress to catatonia. This case report describes the diagnostic and therapeutic course of catatonia-associated TS.
    METHODS: In this study, we report the case of a patient with TS who initially developed sudden hallucinations, delusions, and emotional instability, followed by catatonia.
    METHODS: The patient was diagnosed with: unspecified catatonia; TS.
    METHODS: Treatment included administering a combination of esazolam injections and olanzapine tablets, placing a gastric tube and urinary catheter, and providing nutritional support.
    RESULTS: After treatment, the patient\'s hallucinations, delusions, and catatonia disappeared, with no residual sequelae, and social functioning returned to normal.
    CONCLUSIONS: For patients with TS who present with psychotic symptoms and catatonia, a comprehensive evaluation is necessary, and treatment with antipsychotics and benzodiazepines is effective.
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  • 文章类型: Journal Article
    听觉言语幻觉(AVH)是精神分裂症的独特临床表现。虽然低频重复经颅磁刺激(rTMS)已显示出减轻AVH的潜力,它运作的精确机制仍然模糊。这项研究旨在研究在使用1HzrTMS治疗之前和之后,患有AVH的精神分裂症患者的结构连接和功能连接(SC-FC)耦合的交替变化,该rTMS专门针对左颞顶交界处。最初,与健康对照组相比,患者的宏观全脑SC-FC偶联水平显著降低.值得注意的是,SC-FC耦合在多个网络中显著增加,包括躯体运动,背侧注意力,腹侧注意力,额顶叶控制,和默认模式网络,rTMS治疗后。在包括躯体运动网络和默认模式网络的关键节点中,SC-FC耦合发生了重大变化。例如中央前回和腹内侧前额叶皮质,分别。SC-FC偶联的交替与临床症状的改善有关。我们的研究结果阐明了接受低频rTMS的患者白质结构与神经元活动之间的复杂关系。这促进了我们对rTMS治疗AVH的基础机制的理解。
    Auditory verbal hallucinations (AVH) are distinctive clinical manifestations of schizophrenia. While low-frequency repetitive transcranial magnetic stimulation (rTMS) has demonstrated potential in mitigating AVH, the precise mechanisms by which it operates remain obscure. This study aimed to investigate alternations in structural connectivity and functional connectivity (SC-FC) coupling among schizophrenia patients with AVH prior to and following treatment with 1 Hz rTMS that specifically targets the left temporoparietal junction. Initially, patients exhibited significantly reduced macroscopic whole brain level SC-FC coupling compared to healthy controls. Notably, SC-FC coupling increased significantly across multiple networks, including the somatomotor, dorsal attention, ventral attention, frontoparietal control, and default mode networks, following rTMS treatment. Significant alternations in SC-FC coupling were noted in critical nodes comprising the somatomotor network and the default mode network, such as the precentral gyrus and the ventromedial prefrontal cortex, respectively. The alternations in SC-FC coupling exhibited a correlation with the amelioration of clinical symptom. The results of our study illuminate the intricate relationship between white matter structures and neuronal activity in patients who are receiving low-frequency rTMS. This advances our understanding of the foundational mechanisms underlying rTMS treatment for AVH.
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  • 文章类型: Randomized Controlled Trial
    目的:本研究调查了8个月每日指导的密集冥想干预(iMI)对男性精神分裂症住院患者持续性幻觉/妄想和健康相关生活质量(QoL)的影响。
    方法:一项随机对照试验将64名患有精神分裂症和TRHD的男性住院患者平均分为8个月iMI加一般康复计划(GRP)或单独GRP。使用阳性和阴性综合征量表(PANSS)在基线和第3个月和第8个月进行评估,36项简短表格36(SF-36),五面正念问卷(FFMQ)。主要结果衡量PANSS总分的减少率,阳性症状,和幻觉/妄想项目。次要结果评估PANSS,SF-36和FFMQ对精神病症状的评分,与健康相关的QoL,和正念技能,分别。
    结果:在主要结果中,iMI显著提高了PANSS总分的降低率,阳性症状,与第3个月和第8个月的GRP相比,幻觉/妄想项目。在第8个月,iMI组的这些措施的治疗反应率(降低≥25%)显着增加。关于次要结果,IMI显著降低PANSS总分和幻觉/妄想项目,与GRP相比,第三和第八个月的身体活动和正念技能得分都有所提高。与3个月的干预相比,8个月的干预效果更为明显。
    结论:iMI通过减少持续性幻觉/妄想和提高与健康相关的QoL使TRHD患者受益。较长的iMI持续时间产生较好的治疗结果。
    OBJECTIVE: This study investigated the impact of an 8-month daily-guided intensive meditation-based intervention (iMI) on persistent hallucinations/delusions and health-related quality of life (QoL) in male inpatients with schizophrenia with treatment-refractory hallucinations and delusions (TRHDs).
    METHODS: A randomized controlled trial assigned 64 male inpatients with schizophrenia and TRHD equally to an 8-month iMI plus general rehabilitation program (GRP) or GRP alone. Assessments were conducted at baseline and the third and eighth months using the Positive and Negative Syndrome Scale (PANSS), 36-Item Short Form-36 (SF-36), and Five Facet Mindfulness Questionnaire (FFMQ). Primary outcomes measured PANSS reduction rates for total score, positive symptoms, and hallucinations/delusions items. Secondary outcomes assessed PANSS, SF-36, and FFMQ scores for psychotic symptoms, health-related QoL, and mindfulness skills, respectively.
    RESULTS: In the primary outcome, iMI significantly improved the reduction rates of PANSS total score, positive symptoms, and hallucination/delusion items compared with GRP at both the third and eighth months. Treatment response rates (≥25% reduction) for these measures significantly increased in the iMI group at the eighth month. Concerning secondary outcomes, iMI significantly reduced PANSS total score and hallucination/delusion items, while increasing scores in physical activity and mindfulness skills at both the third and eighth months compared with GRP. These effects were more pronounced with an 8-month intervention compared with a 3-month intervention.
    CONCLUSIONS: An iMI benefits patients with TRHDs by reducing persistent hallucinations/delusions and enhancing health-related QoL. Longer iMI duration yields superior treatment outcomes.
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  • 文章类型: Journal Article
    目的:精神分裂症中的听觉言语幻觉(AVHs)被证明与中脑-皮层回路功能障碍有关,特别是在异常突出和内部言语资源监控处理过程中。然而,涉及AVHs病理生理学的协调相互作用的区域之间的信息流尚不清楚.
    方法:我们使用谱动态因果模型(DCM)来量化86例首发药物初治精神分裂症合并AVH(AVH)患者的8个关键奖励网络中心之间的联系,93例无AVHs(NAVH)的患者,和88个匹配的正常对照(NC)使用静息态功能磁共振成像。组级连接系数,进行了图像测量和症状之间的组间差异和相关性分析。
    结果:与NAVH相比,DCM显示AVH中从右腹侧纹状体(RVS)到腹侧被盖区(VTA)的有效连接(EC)较弱。AVH从左前脑岛(AI)到RVS显示出更强的EC,从RVS到前扣带皮质(ACC)的EC更强,与NC相比,从VTA到后扣带皮质(PCC)的EC更强。相关分析结果主要体现在从右AI到ACC的EC与阳性分之间的负相关,P1子得分,和组水平的PNASSP3分。
    结论:这些发现表明,与AVH相关的奖励网络之间的神经因果相互作用被破坏,扩大AVHs潜在神经生物学机制的证据。特别是,多巴胺依赖的显著性归因和自上而下的监测损伤和增强的兴奋性传入对ACC的代偿作用,这可能为精神分裂症中AVHs的直接体内治疗靶点提供证据。
    OBJECTIVE: Auditory verbal hallucinations (AVHs) in schizophrenia is proved to be associated with dysfunction of mesolimbic-cortical circuits, especially during abnormal salient and internal verbal resource monitoring processing procedures. However, the information flow among areas involved in coordinated interaction implicated the pathophysiology of AVHs remains unclear.
    METHODS: We used spectral dynamic causal modeling (DCM) to quantify connections among eight critical hubs of reward network in 86 first-episode drug-naïve schizophrenia patients with AVHs (AVH), 93 patients without AVHs (NAVH), and 88 matched normal controls (NC) using resting-state functional magnetic resonance imaging. Group-level connection coefficients, between-group differences and correlation analysis between image measures and symptoms were performed.
    RESULTS: DCM revealed weaker effective connectivity (EC) from right ventral striatum (RVS) to ventral tegmental area (VTA) in AVH compared to NAVH. AVH showed stronger EC from left anterior insula (AI) to RVS, stronger EC from RVS to anterior cingulate cortex (ACC), and stronger EC from VTA to posterior cingulate cortex (PCC) compared to NC. The correlation analysis results were mostly visible in the negative correlation between EC from right AI to ACC and positive sub-score, P1 sub-score, and P3 sub-score of PNASS in group-level.
    CONCLUSIONS: These findings suggest that neural causal interactions between the reward network associated with AVHs are disrupted, expanding the evidence for potential neurobiological mechanisms of AVHs. Particularly, dopamine-dependent salience attribution and top-down monitoring impairments and compensatory effects of enhanced excitatory afferents to ACC, which may provide evidence for a therapeutic target based on direct in vivo of AVHs in schizophrenia.
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  • 文章类型: Case Reports
    背景:亨廷顿病(HD)是一种遗传性和进行性神经退行性疾病,以舞蹈样运动模式为特征,表现为典型症状。患者出现明显的精神病发作症状可以大大增强准确诊断的复杂性。
    方法:一位43岁的绅士因五年的妄想而入院,幻觉,和烦躁。他以前曾被诊断为精神分裂症,并接受了超过四年的抗精神病药物治疗方案。然而,在应用脑MRI和基因检测之后,他的病情最终被重新确定为HD。
    结论:该病例的显著特征在于HD的延迟诊断,原因是存在急性精神初始症状,对疾病监督和预测产生值得注意的影响的情景。这种情况值得专业社区进行认真的审查和讨论。
    BACKGROUND: Huntington\'s disease (HD) stands as an inherited and progressive neurodegenerative ailment distinguished by chorea-esque movement patterns, which manifest as archetypal symptoms. The presence of pronounced psychiatric onset symptoms in patients can considerably amplify the intricacies of accurate diagnosis.
    METHODS: A 43-year-old gentleman was admitted with a five-year chronicle of delusions, hallucinations, and irritability. He had previously received a diagnosis of schizophrenia and had been subjected to a regimen of antipsychotic medications for a span exceeding four years. However, subsequent to the application of cerebral MRI and genetic testing, his condition was conclusively redetermined as HD.
    CONCLUSIONS: The salient attribute of this case resides in the deferred diagnosis of HD attributable to the presence of acute psychiatric initial symptoms, a scenario bearing noteworthy ramifications for disease oversight and prognostication. This instance warrants attentive scrutiny and discourse within the professional community.
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  • 文章类型: Journal Article
    听觉皮层的颅内电刺激(iES)可以引发具有各种感知内容(幻觉或幻觉)和位置(对侧或双侧)的声音体验,独立于实际的声学输入。然而,这种激发异质性的神经机制仍未被发现。这里,我们收集了28例患者(两性均为)的3062个颅内部位iES后的主观报告,并确定了113个具有iES诱发声音体验的听觉皮质部位.然后,我们将从所有113个站点记录的声音诱发的颅内脑电图(iEEG)信号分解为时频特征。我们发现,可以通过从声音引起的iEEG中提取的早期高γ特征来预测iES引起的感知内容。相比之下,由刺激幻觉部位和幻觉部位引起的感知位置由晚期高γ和持久的α特征决定,分别。我们的研究揭示了iES引起的人类声音体验的关键神经特征,并为耳聋患者的听力恢复提供了新的策略。
    Intracranial electrical stimulation (iES) of auditory cortex can elicit sound experiences with a variety of perceived contents (hallucination or illusion) and locations (contralateral or bilateral side), independent of actual acoustic inputs. However, the neural mechanisms underlying this elicitation heterogeneity remain undiscovered. Here, we collected subjective reports following iES at 3062 intracranial sites in 28 patients (both sexes) and identified 113 auditory cortical sites with iES-elicited sound experiences. We then decomposed the sound-induced intracranial electroencephalogram (iEEG) signals recorded from all 113 sites into time-frequency features. We found that the iES-elicited perceived contents can be predicted by the early high-γ features extracted from sound-induced iEEG. In contrast, the perceived locations elicited by stimulating hallucination sites and illusion sites are determined by the late high-γ and long-lasting α features, respectively. Our study unveils the crucial neural signatures of iES-elicited sound experiences in human and presents a new strategy to hearing restoration for individuals suffering from deafness.
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