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首页> 外文期刊>Cognitive Neuropsychiatry >Left hemisphere lateralisation of auditory hallucinations in schizophrenia: A dichotic listening study
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Left hemisphere lateralisation of auditory hallucinations in schizophrenia: A dichotic listening study

机译：精神分裂症的听觉幻觉的左半球偏侧化：一项二分听觉研究

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摘要

Introduction. We propose that auditory hallucinations are internally generated speech misrepresentations that are lateralised to the left temporal lobe. If hallucinations are misrepresentations involving the speech perception area of the left temporal lobe, then hallucinating patients should have problems identifying a simultaneously presented external speech sound, especially when the sound is lateralised to the left hemisphere. Lateralisation of speech perception can be experimentally studied with the dichotic listening task with consonant-vowel syllables. We predicted a negative relation between frequency of auditory hallucinations and performance on the dichotic listening task. Method. We studied 87 right-handed patients with schizophrenia. Hallucination scores were taken from the BPRS symptom scale. Right and left ear scores in the dichotic listening task were recorded. A right ear advantage is expected in healthy individuals, indicating left temporal lobe processing superiority. The patients were compared with 36 right-handed healthy reference subjects. Results. A gradual decrease in the ability to process and report the right ear stimulus with increasing frequency of hallucinations was seen in the schizophrenia patients. No such relationship was found for processing and reporting of the left ear stimulus. There were no significant correlations with negative symptoms. Thus, the results were not the consequence of illness severity. There was however a significant correlation with unusual thought content symptom, pointing to a relationship also between delusions and auditory hallucinations. Conclusion. The results support that auditory hallucinations may be internally generated speech misrepresentations, originating in the left temporal lobe.
机译：介绍。我们建议，听觉幻觉是内部产生的语音错误陈述，这些错误陈述横向于左侧颞叶。如果幻觉是涉及左颞叶语音感知区域的错误陈述，那么幻觉患者应该难以识别同时呈现的外部语音，尤其是当声音偏向左半球时。语音感知的横向化可以通过辅音元音节的二分听操作来实验研究。我们预测听觉幻觉的频率与双耳听力任务的表现之间存在负相关关系。方法。我们研究了87位右手精神分裂症患者。幻觉得分来自BPRS症状量表。记录在二项式听力任务中的右耳和左耳得分。在健康个体中有望获得右耳优势，表明左颞叶加工优势。将该患者与36位惯用右手的健康参考对象进行了比较。结果。在精神分裂症患者中，随着幻觉频率的增加，处理和报告右耳刺激的能力逐渐降低。在处理和报告左耳刺激中没有发现这种关系。与阴性症状无显着相关性。因此，结果不是疾病严重程度的结果。然而，与异常思想内容症状之间存在显着相关性，这表明妄想与幻听之间也存在关系。结论。结果支持听觉幻觉可能是内部产生的语音错误陈述，起源于左颞叶。

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  • 来源
    《Cognitive Neuropsychiatry》 |2008年第2期|166-179|共14页
  • 作者

    Kenneth Hugdahl; Else-Marie Lberg; Hugo A. Jrgensen; Arvid Lundervold; Anders Lund; Michael F. Green; Bjrn Rund;

  • 作者单位

    Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway|Division of Psychiatry, Haukeland University Hospital, Bergen, Norway;

    Division of Psychiatry, Haukeland University Hospital, Bergen, Norway;

    Division of Psychiatry, Haukeland University Hospital, Bergen, Norway|Department of Clinical Medicine, Psychiatry, University of Bergen, Bergen, Norway;

    Department of Biomedicine, University of Bergen, Bergen, Norway;

    Division of Psychiatry, Haukeland University Hospital, Bergen, Norway|Department of Clinical Medicine, Psychiatry, University of Bergen, Bergen, Norway;

    Department of Psychiatry and Biobehavioral Sciences, Geffen School of Medicine at UCLA, and VA Greater Los Angeles Healthcare System, CA, USA;

    Institute of Psychology, University of Oslo, Oslo, Norway;

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  • 关键词

    Hallucinations; Temporal lobe; Dichotic listening; Lateralisation; Functional impairment;

    机译：幻觉;颞叶;双耳听力;横向化;功能障碍;

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