Abstract Background While advances in the field of functional magnetic resonance imaging (fMRI) provide new opportunities to study brain networks underlying experience hallucinations psychosis, there are methodological challenges unique symptom-capture studies. Study Design We extracted activated during hallucination-capture for schizophrenia patients when fMRI data collected from two sites was...

Background: Ketamine is one of the most common drugs that used in general anesthesia. Water solubility, high efficacy for Anesthesia induction and low cardiac and respiratory side effects make it suitable drug for general anesthesia. But this drug has side effects such as increased airway secretion, ICP, IOP, IGP that can be managed comfortably. The most common side effect of ketamine is post...

25 untreated urban living schizophrenics fulfilling the criteria of Feighner et al., having Schneiderian auditory hallucination were studied with the aim of examining the experienced reality of auditory hallucination and the influence on this reality of certain variables. It was found that the hallucinations were more real than unreal. Duration of illness, presence of anxiety prior to hallucina...

In this paper various approaches for face hallucination has been studied. Face hallucination transform a low resolution face image into high resolution face image by enhancing the low resolution part of the image, a low resolution image can be developed from HR image by the process of down sampling, but if a low resolution image has to convert into HR image that is not so easy process. Face hal...

The exact pathogenesis of visual hallucinations in Parkinson's disease is not known but an integrated model has been proposed that includes impaired visual input and central visual processing, impaired brainstem regulation of sleep-wake cycle with fluctuating vigilance, intrusion of rapid eye movement dream imagery into wakefulness and emergence of internally generated imagery, cognitive dysfun...

Perceptual experience and visual imagination both offer a first-person perspective on visible objects. But these perspectives are strikingly different. For it is distinctive of ordinary perceptual intentionality that objects seem to be present the perceiver. I term this phenomenal property ‘presence’. This paper introduces positive definition presence. Dokic Martin (2017) argue presence not gen...

We have set out to identify phenomenological correlates of cerebral functional architecture within Charles Bonnet syndrome (CBS) hallucinations by looking for associations between specific hallucination categories. Thirty-four CBS patients were examined with a structured interview/questionnaire to establish the presence of 28 different pathological visual experiences. Associations between categ...