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Journal of the Royal College of Physicians of London, 1997 Hallucinations may be defined as perceptions that occur in the absence of a corresponding stimulus. They can involve any of the five senses, hence visual, auditory, tactile, gustatory and olfactory hallucinations. By contrast, illusions depend upon a misinterpretation of an external stimulus.
S, Barodawala, G P, Mulley
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Changes in structural network topology correlate with severity of hallucinatory behavior in Parkinson's disease [PDF]
, 2019 Inefficient integration between bottom-up visual input and higher order visual processing regions is implicated in visual hallucinations in Parkinson's disease (PD). Here, we investigated white matter contributions to this perceptual imbalance hypothesis.
Hall, Julie +7 more
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The constitution of visual perceptual units in the functional architecture of V1 [PDF]
, 2014 Scope of this paper is to consider a mean field neural model which takes into account the functional neurogeometry of the visual cortex modelled as a group of rotations and translations.
Citti, Giovanna, Sarti, Alessandro
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Context-Patch Face Hallucination Based on Thresholding Locality-Constrained Representation and Reproducing Learning [PDF]
, 2020 Face hallucination is a technique that reconstruct high-resolution (HR) faces from low-resolution (LR) faces, by using the prior knowledge learned from HR/LR face pairs.
Akiko Aizawa +5 more
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Analysis of the multidimensionality of hallucination-like experiences in clinical and nonclinical Spanish samples and their relation to clinical symptoms: Implications for the model of continuity [PDF]
, 2011 Numerous studies have found that hallucinatory experiences occur in the general population. But to date, few studies have been conducted to compare clinical and nonclinical groups across a broad array of clinical symptoms that may co-occur with ...
Cangas Díaz, Adolfo Javier +2 more
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Reduced attention-driven auditory sensitivity in hallucination-prone individuals [PDF]
, 2015 Background Evidence suggests that auditory hallucinations may result from abnormally enhanced auditory sensitivity. Aims To investigate whether there is an auditory processing bias in healthy individuals who are prone to experiencing auditory ...
Lee, K-H. +2 more
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Visual Hallucinations in Mania
Indian Journal of Psychological Medicine, 2011 Visual hallucinations occur in a wide variety of neurological and psychiatric disorders, including toxic disturbances, drug withdrawal syndromes, focal central nervous system lesions, migraine headaches, blindness, schizophrenia, and psychotic mood disorders.
Arindam Chinmoy Chakrabarty, M S Reddy
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Subcortical Visual Hallucinations
Cortex, 1971 Summary The case material that has been reviewed suggests that lesions at all levels of the neurovisual system may be associated with visual hallucinations. Occurrence of the phenomenon of subcortical visual hallucinations is compatible with what is known about the complex integration of cortical and subcortical visual processes.
Smith, R A +2 more
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Visual hallucinations in PD [PDF]
Neurology, 2002 A 74-year-old man developed idiopathic PD at age 55 years. He was treated with levodopa, dopamine agonists, entacapone, and amantadine. At age 72 years, he developed transient visual hallucinations requiring the addition of low-dose …
Steven J. Frucht, Lorin Bernsohn
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Visual hallucinations in psychosis
Psychiatry Research, 2019 The Dutch version of the Visual Hallucination Questionnaire was used to assess lifetime visual hallucinations (VH) characteristics in 27 patients with psychosis. Our results confirmed substantial variance in many VH characteristics. Most patients reported multiple VH types.
Richard Bruggeman +3 more
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