Orientational Perception: III. Orientational Percept Distortions in Depersonalization

Cappon, Daniel

doi:10.1176/ajp.125.8.1048

Cited by 15 publications

(8 citation statements)

References 10 publications

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“…Dp/Dr symptoms are common in the general population [2–4]. Abnormal vestibular stimulation with calorics has been found to provoke feelings of unreality in healthy subjects [5–7]. Our earlier studies also showed different unreal perceptions of self-motion, perceived unequally by the different parts of the body [8]; moreover, we discovered vestibularly evoked visual hallucinations [9].…”

Section: Introductionmentioning

confidence: 61%

Anxiety Changes Depersonalization and Derealization Symptoms in Vestibular Patients

Kolev

Georgieva-Zhostova

Berthoz

2014

Behavioural Neurology

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Background. Depersonalization and derealization are common symptoms reported in the general population. Objective. The aim of the present study was to establish the relationship between anxiety and depersonalization and derealization symptoms in patients with peripheral vestibular disorders. Methods. Twenty-four vestibular patients with anxiety and 18 vestibular patients without anxiety were examined for depersonalization and derealization symptoms. They were also compared to healthy controls. Results. The results revealed that anxiety consistently changes depersonalization and derealization symptoms in vestibular patients. They are more frequent, more severe, and qualitatively different in vestibular patients with anxiety than in those without anxiety. Conclusion. Anxiety has an effect on depersonalization and derealization symptoms in vestibular patients. The various hypotheses about the underlying mechanism of this effect were discussed.

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Section: Introductionmentioning

confidence: 61%

Anxiety Changes Depersonalization and Derealization Symptoms in Vestibular Patients

Kolev

Georgieva-Zhostova

Berthoz

2014

Behavioural Neurology

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“…In short, the content of this factor suggests that an experience of 'disembodiment ' is the most characteristic body image abnormality in depersonalization. Interestingly, these profound distortions in body image do not seem accompanied by objective changes in body schema (defined as unconscious mechanisms in charge of adjusting and regulating motor activity and posture) (Cappon & Banks, 1965).…”

Section: Discussionmentioning

confidence: 99%

Unpacking the depersonalization syndrome: an exploratory factor analysis on the Cambridge Depersonalization Scale

et al. 2005

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“…The latter showed that depersonalized and Cotard patients had no specific sensory deficits and that conversely, the sensory deficits attributed to such conditions could occur without them. This was confirmed experimentally by Cappon and Banks (1965) who compared 20 depersonalized patients to matched controls and showed that despite their distorted subjective bodily feelings, the patients could not be distinguished from controls by objective measures of bodily perception and control. Given that sensorimotor theories predict that self-doubters should have impaired sensorimotor abilities, the above data nicely disconfirm those theories.…”

Section: Self-doubt and Sensorimotor Theoriesmentioning

confidence: 83%

Basic Self‐Awareness

Billon

2016

European J of Philosophy

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Basic self‐awareness is the kind of self‐awareness reflected in our standard use of the first‐person. Patients suffering from severe forms of depersonalization often feel reluctant to use the first‐person and can even, in delusional cases, avoid it altogether, systematically referring to themselves in the third‐person. Even though it has been neglected since then, depersonalization has been extensively studied, more than a century ago, and used as probe for understanding the nature and the causal mechanisms of basic self‐awareness. In this paper, I argue that depersonalized patients indeed have an impaired basic self‐awareness, and that their study allows us both to favor one specific theory of basic self‐awareness and to understand what is wrong with its rivals. According to the favored theory, which I call Cartesian, we are basically self‐aware in virtue of being acquainted with ourselves through introspection.

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Orientational Perception: III. Orientational Percept Distortions in Depersonalization

Cited by 15 publications

References 10 publications

Anxiety Changes Depersonalization and Derealization Symptoms in Vestibular Patients

Anxiety Changes Depersonalization and Derealization Symptoms in Vestibular Patients

Unpacking the depersonalization syndrome: an exploratory factor analysis on the Cambridge Depersonalization Scale

Basic Self‐Awareness

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