Sayaka Ishii

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OBJECTIVE Near-infrared spectroscopy (NIRS) is commonly used to investigate continuous changes of brain activation and has excellent time resolution. Verbal fluency task (VFT) is widely used as a neuropsychological test of frontal lobe function. The aim of this study was to investigate normal developmental change in frontal lobe function during VFT(More)
BACKGROUND With the popularization of organized sports among adolescents and children, the clinical cases of stress fractures in young athletes have increased. This study was carried out to investigate the characteristics of stress fractures in young athletes. METHODS During the 18-month period between January 1996 and June 1997, new clinical cases of(More)
PURPOSE The association of headache with seizures is well known to neurologists but poorly understood. The purpose of this prospective study was to evaluate the types and frequency of seizure-associated headaches among pediatric patients with epilepsy, and to identify their risk factors with special attention to the anatomic localization of the(More)
Event-related potentials (ERPs) are very useful for evaluating cognitive function in patients with neurological and psychiatric disorders. The method is noninvasive, economical, and offers a certain level of temporal resolution. This review focuses on cognitive functions in epilepsy patients using various ERPs, such as P300, mismatch negativity, NoGo(More)
OBJECTIVE The autonomic nervous system has a deep relationship with the cognitive network when performing cognitive tasks. We hypothesize that autonomic emotional responses can affect cognitive function, especially executive function. The aim of this study was to clarify the involvement of the autonomic system during an executive functional task via(More)
OBJECTIVE Attention-deficit/hyperactivity disorder (AD/HD) is a common developmental disorder. Many reports have suggested that symptoms of AD/HD are related to frontal lobe dysfunctions, particularly disinhibition. However, measuring neurological findings with biomarkers during frontal functional tasks has sometimes been difficult in children with AD/HD.(More)
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