Occipital lobe epilepsy presenting with visual hallucinations (Charles Bonnet syndrome)

2013 ◽  
Vol 31 (3) ◽  
pp. 624-625 ◽  
Author(s):  
Colin S.H. Tan ◽  
Kelvin Z. Li ◽  
Louis W. Lim ◽  
Ngo Wei Kiong
Keyword(s):  
Occipital Lobe ◽  
Visual Hallucinations ◽  
Charles Bonnet Syndrome ◽  
Occipital Lobe Epilepsy

scholarly journals Prognostic Value of Elementary Visual Hallucinations in Patients with Occipital Lobe Epilepsy

Epilepsia ◽  
1998 ◽  
Vol 39 (S5) ◽  
pp. 67-67
Author(s):  
Hideki Muranaka ◽  
Shin-ichi Osari ◽  
Yoshiharu Kimura ◽  
Akira Goto ◽  
Hiroshi Fujita ◽  
...  
Keyword(s):  
Prognostic Value ◽  
Occipital Lobe ◽  
Visual Hallucinations ◽  
Occipital Lobe Epilepsy

scholarly journals Three Cases with Visual Hallucinations following Combined Ocular and Occipital Damage

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Bogusław Paradowski ◽  
Edyta Kowalczyk ◽  
Justyna Chojdak-Łukasiewicz ◽  
Aleksandra Loster-Niewińska ◽  
Monika Służewska-Niedźwiedź
Keyword(s):  
Literature Review ◽  
Optic Neuritis ◽  
Visually Impaired ◽  
Occipital Lobe ◽  
Visual Hallucinations ◽  
Charles Bonnet Syndrome ◽  
The Third ◽  
Retrobulbar Optic Neuritis

Charles Bonnet syndrome is an underrecognized disease that involves visual hallucinations in visually impaired patients. We present the cases of three patients who experienced complex visual hallucinations following various pathomechanisms. In two cases, diagnosis showed coexistence of occipital lobe damage with ocular damage, while in the third case it showed occipital lobe damage with retrobulbar optic neuritis. Theories of pathogenesis and the neuroanatomical basis of complex visual hallucinations are discussed and supported by literature review.

scholarly journals “Capgras” Delusions Involving Belongings, Not People, and Evolving Visual Hallucinations Associated with Occipital Lobe Seizures

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Brandon Lilly ◽  
Erika Maynard ◽  
Kelly Melvin ◽  
Suzanne Holroyd
Keyword(s):  
Seizure Activity ◽  
Occipital Lobe ◽  
Visual Hallucinations ◽  
Occipital Lobe Epilepsy ◽  
Capgras Syndrome ◽  
Delusional Belief ◽  
Familiar Person ◽  
New Onset

Capgras syndrome is characterized by the delusional belief that a familiar person has been replaced by a visually similar imposter or replica. Rarely, the delusional focus may be objects rather than people. Numerous etiologies have been described for Capgras to include seizures. Similarly, visual hallucinations, both simple and complex, can occur secondary to seizure activity. We present, to our knowledge, the first reported case of visual hallucinations and Capgras delusions for objects that developed secondary to new onset occipital lobe epilepsy. We then discuss the possible underlying neurologic mechanisms responsible for the symptomatology.

scholarly journals Complex visual hallucinations as the sole manifestation of symptomatic temporo-occipital lobe epilepsy due to old intracerebral hemorrhage

Seizure ◽  
2014 ◽  
Vol 23 (3) ◽  
pp. 244-246 ◽  
Author(s):  
Yuki Sakamoto ◽  
Rieko Suzuki ◽  
Tomoyuki Ohara ◽  
Tetsuya Miyagi ◽  
Masato Osaki ◽  
...  
Keyword(s):  
Intracerebral Hemorrhage ◽  
Occipital Lobe ◽  
Visual Hallucinations ◽  
Occipital Lobe Epilepsy

Occipital lobe epilepsy presenting as Charles Bonnet syndrome

2012 ◽  
Vol 30 (9) ◽  
pp. 2102.e5-2102.e6 ◽  
Author(s):  
Damaris Brown-Vargas ◽  
John J. Cienki
Keyword(s):  
Occipital Lobe ◽  
Charles Bonnet Syndrome ◽  
Occipital Lobe Epilepsy

OCCIPITAL LOBE EPILEPSY IN CHILDREN: THE CLINICAL SPECTRUM AND OUTCOME

2006 ◽  
Vol 37 (S 1) ◽  
Author(s):  
M Connolly ◽  
R Schukla ◽  
R Gatrill
Keyword(s):  
Occipital Lobe ◽  
Clinical Spectrum ◽  
Occipital Lobe Epilepsy

FDG-PET Scanning Shows Distributed Changes in Cortical Activity Associated with Visual Hallucinations in Eye Disease

2019 ◽  
Vol 19 (1) ◽  
pp. 84-89 ◽  
Author(s):  
Lütfü Hanoglu ◽  
Sultan Yildiz ◽  
Tansel Cakir ◽  
Taha Hanoglu ◽  
Burak Yulug
Keyword(s):  
Visual Cortex ◽  
Fdg Pet ◽  
Underlying Mechanism ◽  
Posterior Cingulate Cortex ◽  
Eye Disease ◽  
Visual Hallucinations ◽  
Charles Bonnet Syndrome ◽  
Pet Scanning ◽  
Inferior Parietal Cortex ◽  
Visual Deafferentation

Background and Objective: Charles Bonnet Syndrome (CBS) has been defined as complex visual hallucinations (CVH) due to visual loss. The underlying mechanism of CBS is not clear and the underlying pathophysiology of the visual hallucinations in CBS patients and pure visually impaired patients is still not clear. </P><P> Methods: In our study, we have scanned three patients with eye disease and CBS (VH+) and three patients with eye disease without CBS (VH-) using FDG-PET. Results: Our results showed underactivity in the pons and overactivity in primary right left visual cortex and inferior parietal cortex in VH- patients and underactivity in left Broca, left inf frontal primary visual cortex and anterior and posterior cingulate cortex in VH+ patients relative to the normative 18FFDG PET data that was taken from the database consisting of 50 age-matched healthy adults without neuropsychiatric disorders. Conclusion: From this distributed pattern of activity changes, we conclude that the generation of visual hallucination in CBS is associated with bottom-up and top-down mechanism rather than the generally accepted visual deafferentation-related hyperexcitability theory.

scholarly journals An overview of psychological and social factors in Charles Bonnet syndrome

2021 ◽  
Vol 13 ◽  
pp. 251584142110347
Author(s):  
Lee Jones ◽  
Lara Ditzel-Finn ◽  
Jamie Enoch ◽  
Mariya Moosajee
Keyword(s):  
Emotional Response ◽  
Causal Mechanism ◽  
Visual Hallucinations ◽  
Cognitively Normal ◽  
Charles Bonnet Syndrome ◽  
Raising Awareness ◽  
Normal Individuals ◽  
The Social ◽  
Recent Developments ◽  
Insight Into

Charles Bonnet syndrome (CBS) is a condition where cognitively normal individuals with sight impairment experience simple and/or complex visual hallucinations. The exact pathogenesis of CBS is unknown; however, deafferentation is often recognised as a causal mechanism. Studies have provided insight into the multifaceted impact of CBS on wellbeing. Onset of CBS may cause distress among those believing visual hallucinations are indicative of a neurological condition. Hallucinatory content is often congruent with the emotional response. For example, hallucinations of a macabre nature typically result in a fearful response. Visual hallucinations may be highly disruptive, causing everyday tasks to become challenging. Clinical management relies on forewarning and pre-emptive questioning. Yet, knowledge and awareness of CBS is typically low. In this review, we provide a summary of the social and psychological implications of CBS and explore recent developments aimed at raising awareness and improving patient management.

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