Results 101 to 110 of about 568 (146)

The Photoparoxysmal Response: The Probable Cause of Attacks during Video Games

Clinical EEG and Neuroscience, 2008
Photic stimulation is part of a typical EEG in most countries, especially to check on the photoparoxysmal response (PPR). Interest in this response was enhanced in 1997 when hundreds of Japanese children had attacks while viewing a TV cartoon called “Pokemon.” The overall prevalence of the PPR among patients requiring an EEG is approximately 0.8%, but ...

exaly   +3 more sources

Genetic linkage analysis of a large family with photoparoxysmal response

Epilepsy Research, 2012
In this study, we report the results of a genetic linkage analysis of a large family with photoparoxysmal response, defined by the presence of a photoparoxysmal response (PPR) on EEG. The participants were genotyped using an 8 cM whole genome wide scan, and both parametric and non-parametric linkage analysis were carried out. The parametric analysis by
Henry Houlden, Nicholas Wood, Simon Shorvon   +2 more
exaly   +3 more sources

Clinical correlations of photoparoxysmal responses

Electroencephalography and Clinical Neurophysiology, 1990
Reilly and Peters (1973) reported that photoparoxysmal responses (PPRs) that outlasted the stimulus correlated significantly with seizures as compared to self-limited PPRs. However, they defined a wide range of activity, including occipital spikes and slow wave bursts, as PPR.
P, Jayakar, K H, Chiappa
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Prognosis of photoparoxysmal response in nonepileptic patients

Neurology, 1993
Photoparoxysmal response (PPR) is sometimes incidentally encountered in EEGs performed for evaluation of nonepileptic symptoms. We conducted the first long-term study of a cohort of nonepileptic patients to determine their risk of having seizures subsequent to incidental recording of PPR. After 6 to 12 years (mean, 9 years), none of the 33 patients had
E L, So, K H, Ruggles, P A, Ahmann, K A, Olson   +3 more
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Juvenile fire setting and the photoparoxysmal response

Annals of Neurology, 1992
AbstractWe report on 3 boys with fire setting, photoparoxysmal responses to intermittent photic stimulation, and temporal lobe electroencephalographic abnormalities. Fire setting resolved and behavior improved with administration of anticonvulsants.
L M, Milrod, D K, Urion
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Photoparoxysmal responses in children with chromosomal aberrations

Epilepsy Research, 2006
Electroencephalographic (EEG) anomalies and epilepsy are commonly observed in the clinical picture of patients with chromosomal aberrations. However, no investigations have been performed on the relationship between chromosomal disorders and photoparoxysmal response (PPR).
GROSSO, S., PUCCI, L., BARTALINI, G., ANICHINI, C., DI BARTOLO, R. M., BAZZOTTI, S., MORGESE, G., BALESTRI, P.   +7 more
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Association of BRD2 polymorphisms with photoparoxysmal response

Neuroscience Letters, 2006
A trait locus for electroencephalographic photoparoxysmal response (PPR) has been mapped to the chromosomal region 6p21 near a susceptibility locus for juvenile myoclonic epilepsy (JME). Linkage disequilibrium mapping revealed strong associations between JME and polymorphisms of the gene encoding the bromodomain-containing protein 2 (BRD2). The present
Susanne, Lorenz, Kirsten P, Taylor, Anne, Gehrmann, Tim, Becker, Hiltrud, Muhle, Meike, Gresch, Ulrike, Tauer, Thomas, Sander, Ulrich, Stephani   +8 more
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Extraoccipital photoparoxysmal response in a case of focal encephalitis

Epileptic Disorders, 2011
ABSTRACTPhotoparoxysmal response (PPR) is commonly associated with idiopathic generalised epilepsies. Most of the focal events induced by intermittent photic stimulation (IPS) are reported to be of occipital origin. Only six temporal lobe epilepsy patients have been reported in the literature with focal PPR at extraoccipital sites.
Anis, Jukkarwala, Haseeb, Hassan, Muralidharan, Nair, Rajesh S, Iyer   +3 more
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Photosensitive epilepsies and pathophysiologic mechanisms of the photoparoxysmal response

Neurology, 1999
To identify the pathophysiologic mechanisms of the photoparoxysmal response (PPR) in various photosensitive epilepsy syndromes, and to discuss the relation between these pathophysiologic mechanisms and the classification of epilepsies and epileptic syndromes.The authors found two types of pathophysiologic mechanisms of PPRs (wavelength-dependent PPRs ...
Y, Takahashi, T, Fujiwara, K, Yagi, M, Seino   +3 more
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Photoparoxysmal responses in children: their characteristics and clinical correlates

Pediatric Neurology, 2003
This study evaluates the characteristics of photoparoxysmal responses elicited with intermittent photic stimulation during a routine electroencephalogram in childhood and correlated this with the clinical profile of the child. Photoparoxysmal responses occurred in 8% (21/263) of children where activation was undertaken.
Lakshmi, Nagarajan, Alpana, Kulkarni, Linda, Palumbo-Clark, Pauline Bernadette, Gregory, Peter John, Walsh, Sasson Stephen, Gubbay, Jonathon Michael, Silberstein, Ernst Peter, Silberstein, Emma Louise, Carty, Wendy Rosemary, Dimitroff   +9 more
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