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首页> 外文期刊>Journal of the International Neuropsychological Society: JINS >Neuropsychological characteristics associated with olfactory hallucinations in schizophrenia
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Neuropsychological characteristics associated with olfactory hallucinations in schizophrenia

机译：精神分裂症的嗅觉幻觉相关的神经心理学特征

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摘要

Olfactory hallucinations (OHs) are present in a significant minority of people with schizophrenia, yet these symptoms are under-researched and poorly understood. This study aimed to identify the neuropsychological impairments that associate with OHs in schizophrenia. Patients with schizophrenia or schizoaffective disorder were classified into an OH group and a group with auditory-verbal hallucinations (AVHs) and no lifetime history of OHs. Patients were age-and gender-matched to a healthy control group. All participants were assessed using: a test of odor identification; decision-making and socio-emotional tests of orbitofrontal cortex (OFC) and amygdala function; and a battery of standardized executive tests. Patients, as a whole, performed more poorly than controls on the tests of odor identification, emotion processing and executive function, consistent with previous research. Only two tests of OFC functioning: the Object Alternation Task, taken from Oscar-Berman and Zola-Morgan's (1980a, 1980b) Comparative Neuropsychological Tasks, and a test of faux pas understanding discriminated between the OH and AVH patients. Findings provide the first preliminary support for OH-specific neuropsychological impairments associated with OFC dysfunction in schizophrenia.
机译：嗅觉幻觉（OHs）存在于极少数的精神分裂症患者中，但对这些症状的研究尚未深入且了解甚少。这项研究旨在确定与精神分裂症中的OHs相关的神经心理学障碍。患有精神分裂症或分裂情感障碍的患者分为OH组和听觉-幻觉（AVHs）组，无OHs生存史。患者的年龄和性别与健康对照组匹配。使用以下方法评估所有参与者：气味识别测试;眶额皮质（OFC）和杏仁核功能的决策和社会情感测试;以及一系列标准化的执行测试。总体而言，与以往的研究一致，患者在气味识别，情绪加工和执行功能测试方面的表现比对照组差。 OFC功能只有两项测试：对象替代任务，取自Oscar-Berman和Zola-Morgan（1980a，1980b）的比较神经心理学任务，以及一项对OH和AVH患者进行区分的虚假理解测试。研究结果为精神分裂症中与OFC功能障碍相关的OH特异性神经心理损害提供了初步的初步支持。

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