Suzanna B Hirsch

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Individuals with autism spectrum disorder (ASD) often have difficulty with social-emotional cues. This study examined the neural, behavioral, and autonomic correlates of emotional face processing in adolescents with ASD and typical development (TD) using eye-tracking and event-related potentials (ERPs) across two different paradigms. Scanning of faces was(More)
There is a high incidence of autism in tuberous sclerosis complex. Given the evidence of impaired face processing in autism, the authors sought to investigate electrophysiological markers of face processing in children with tuberous sclerosis complex. The authors studied 19 children with tuberous sclerosis complex under age 4, and 20 age-matched controls,(More)
The Greenfield filter has become the most popular device for interruption of the inferior vena cava; however, a potential for lethal complications exists. We report two cases in which this filter was accidentally released in the heart. To avoid this problem, it is recommended that the guide wire be positioned in the inferior vena cava before the introducer(More)
A randomized, double-blind clinical trial was designed to compare two ratios of carbidopa to levodopa (10 mg of carbidopa to 100 mg of levodopa [Sinemet 10/100] and 20 mg of carbidopa to 100 mg of levodopa [Sinemet 20/100]) with levodopa (100 mg) alone. Twenty-nine male patients (46 to 78 years of age) with clinically definite idiopathic Parkinson's disease(More)
1. A randomized, placebo controlled, double-blind cross-over study was conducted to evaluate the clinical efficacy of the anticholinergic agent, benztropine mesylate (CogentinR) in 29 patients with mild to moderate, idiopathic Parkinson disease. 2. Patients were maintained on a stable, therapeutically optimal dosage and schedule of levadopa-carbidopa(More)
ACKNOWLEDGEMENTS Throughout this whole process there were numerous people who made my thesis-writing experience possible, in addition to quite a few others who helped make it more enjoyable. First, I would like to thank everyone at the Laboratories of Cognitive Neuroscience for giving me the opportunity to work on this study and to extend it into a thesis.(More)
5 Conclusions We have exhibited symmetric QDS's whose simulation is PSPACE-hard. An interesting question is: What is the class of QDS's that can be simulated in polynomial time? Our reductions use systems that display chaotic behavior, i.e., two very close (in`1-norm) initial distributions diverge rapidly as they evolve. We initially suspected this chaotic(More)
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