a individuated by their constituent properties, where the constituent properties are those the subject is inclined to predicate on the strength of his hallucination.38 Charles, who starts out as real and then is evidently unreal, (if I may put it that way) is not to be found among such this-worldly abstracta. Once again, even an abstract entity that includes the property of being first real and...

BACKGROUND Sleep paralysis (SP) is characterised by an inability to move voluntarily for a period on going to sleep or on waking. It is also associated with hallucinations, and often with fear. This study seeks to explore the experience of SP in an Irish university sample. METHODS A cross-sectional survey design was employed, with a validated scale for the assessment of SP being distributed t...

Recent research in cognitive neuroscience using virtual reality, robotic technology and brain imaging has linked self-consciousness to the processing and integration of multisensory bodily signals. This work on bodily self-consciousness has implicated the temporo-parietal, premotor and extrastriate cortex and partly originated in work on neurological patients with different disorders of bodily ...

We reported a case of 80-years-old man with Parkinsonism Disease Dementia (PDD) who experienced an improvement of hallucination with decreasing dose of madopar and non-pharmacological therapies. The patient was initially diagnosed as Parkinson’s disease (PD) 15 years ago, and was medicated with madopar (dose of 250mg per day). The dose of madopar was gradually increased to 375mg per day during ...

Few imaging studies have investigated the conscious ‘pictures’ of the external environment that we associate with seeing (visual percepts). The problem that confronts the neuroscientist is recognizing the neural correlate of ‘seeing’ and differentiating it from afferent sensory activity, which is assumed to remain unconscious1. One solution is to study a visual system in which percepts have bec...

In this paper, we formulate the face hallucination as an image decomposition problem, and propose a Morphological Component Analysis (MCA) based method for hallucinating a single face image. A novel three-step framework is presented for the proposed method. Firstly, a low-resolution input image is up-sampled via an interpolation. Then, the interpolated image is decomposed into a global high-res...

Barabasz, Barabasz, Jensen, Calvin, Trevisan, and Warner (1999) showed that, when subjects are stringently selected for hypnotizability and responses are time locked to events, robust markers of hypnotic responding emerge that reflect alterations in consciousness that correspond to subjects' subjective experiences of perceptual alteration. To further test the Barabasz et al. (1999) hypothesis, ...

A new manifold learning method, called nearest feature line (NFL) embedding, for face hallucination is proposed. While many manifold learning based face hallucination algorithms have been proposed in recent years, most of them apply the conventional nearest neighbour metric to derive the subspace and may not effectively characterise the geometrical information of the samples, especially when th...

Using neuropsychological investigation and visual event-related potentials (ERPs), we aimed to compare the ERPs and cognitive function of nondemented Parkinson's disease (PD) patients with and without visual hallucinations (VHs) and of control subjects. We recruited 12 PD patients with VHs (PD-H), 23 PD patients without VHs (PD-NH), and 18 age-matched controls. All subjects underwent comprehens...

Charles Bonnet syndrome occurs in visually impaired but cognitively normal individuals. This report describes a condition of vivid visual hallucination (phantom images) in an 85-year-old conscious man, who had been blind by bilateral progressively worsening glaucoma. This common, but rarely reported, condition was managed by behavioral approach of repeated blinking, intermittent eyes closure, a...