Somatic hallucinations occur in schizophrenia and other psychotic disorders, although auditory hallucinations are more common. Although the neural correlates of auditory hallucinations have been described in several neuroimaging studies, little is known of the pathophysiology of somatic hallucinations. Functional magnetic resonance imaging (fMRI) was used to compare the distribution of brain ac...

Hallucinations are defined as sensory phenomena in the absence of external sensory stimuli. Auditory hallucinations have been shown to arise from many different intracranial lesions, but seizures manifesting as musical hallucinations triggered by unruptured intracranial aneurysms are rare. We present a case of persistent, episodic musical hallucinations associated with seizures that led to the ...

OBJECTIVE To monitor progression of "benign hallucinations" in Parkinson disease (PD). METHODS We searched our data repository for subjects with PD with 3 sets of neuropsychological testing during 3 years and Unified Parkinson's Disease Rating Scale thought disorder scores taken at 4- to 12-month intervals during this period. We found 48 patients with benign hallucinations, defined as a thoug...

OBJECTIVE This study was undertaken to determine the prevalence of hallucinations and delusions in Parkinson's disease, to describe such symptoms phenomenologically, and possibly to determine factors associated with their development. In addition, the role of the visual system in relation to visual hallucinations was examined. METHOD 102 consecutive patients diagnosed with strictly defined Pa...

in fact alcohol is a toxic substance that has a direct effect on brain. some of the most common mental disorders due to alcohol abuse are: memory disorder: hazardous amounts of alcohol may cause intoxication, impairment of memory so that the person who took a drunken accident may not remember the event. periods of memory impairment in those with a history of alcohol addiction would also happen ...

Around 25% of patients with visual hallucinations secondary to eye disease report hallucinations of text. The hallucinated text conveys little if any meaning, typically consisting of individual letters, words, or nonsense letter strings (orthographic hallucinations). A patient is described with textual visual hallucinations of a very different linguistic content following bilateral occipito-tem...

Electrical stimulation of the temporal lobe was performed in chronic schizophrenic patients to treat the auditory hallucinations. During electrical stimulation, there appeared different kinds of hallucinations. The characteristics of the hallucinations produced by the temporal lobe stimulation greatly differ from those of the schizophrenic hallucinations. Visual and auditory hallucinations by t...