Kimmo O Sainio

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The mismatch negativity (MMN) is a pre-attentive change-specific component of the event-related brain potentials (ERPs). During the last decade this response has been intensively studied in adults, but investigations in children and especially in infants are still rare. Recent studies, however, have shown that MMN is also elicited in infants in response to(More)
We report here event-related potentials (ERPs) of human newborns to occasional pitch changes in a repetitive sequence of tone pips. These pitch changes elicited a large slow negative ERP component which resembles the mismatch negativity (MMN) generated by the adult brain under similar conditions. This MMN-type of negativity in newborns suggests that already(More)
NCL disorders are progressive brain diseases with an autosomal recessive inheritance in all eleven childhood types. These occure world-wide but may be enriched in some countries. In Finland altogether about 400 patients have been diagnosed during the last forty years. The most common types are the infantile and classic juvenile forms with an incidence of 1:(More)
BACKGROUND Viral encephalitis is a medical emergency. The prognosis depends mainly on the pathogen and host immunologic state. Correct immediate diagnosis and introduction of symptomatic and specific therapy has a dramatic influence upon survival and reduces the extent of permanent brain injury. METHODS We searched the literature from 1966 to 2009.(More)
We report the clinical findings in 19 Finnish patients, including six pairs of siblings, with a new, early onset spinocerebellar ataxia. The slowly progressive clinical symptoms manifested between one and two years of age in previously healthy infants. The first manifestation of children at that age was clumsiness and loss of ability to walk. Ataxia,(More)
Patient and graft survival rates of pediatric renal transplant recipients are currently excellent, but there are few reports regarding the long-term neurodevelopmental outcome after renal transplantation (Tx) in early childhood. Children with renal failure from infancy would be expected to have a less favorable developmental prognosis. We report the(More)
Clinical features of a rare congenital myopathy, muscle-eye-brain (MEB) disease, are described in 19 patients. The pedigree data suggest an autosomal recessive inheritance. The patients presented with congenital hypotonia and muscle weakness. Serum CK was elevated, EMG was myopathic and muscle biopsy showed slight or moderate changes compatible with(More)
Forty patients suffering from neuronal ceroid lipofuscinosis, 33 of the juvenile type (JNCL) and 7 of the infantile type (INCL), underwent a brain CT. All INCL patients showed severe atrophic changes which were most pronounced supratentorially and in the brainstem. The white matter was hypodense and markedly reduced and the cortical gray matter was quite(More)
OBJECTIVES The objective of this study is to test the hypothesis that the immature human brain exhibits slow electrical activity that is not detected by conventional (i.e. high-pass filtered) electroencephalography (EEG). METHODS Six healthy preterm infants (conceptional age 33-37 weeks) were recorded bedside with direct current (DC) EEG during sleep.(More)
BACKGROUND Qualitative and quantitative electroencephalography (EEG) parameters of healthy and Finnish Spitz dogs with epilepsy have not been determined. OBJECTIVE To determine if EEG can provide specific characteristics to distinguish between healthy dogs and dogs with epilepsy. ANIMALS Sixteen healthy and 15 Finnish Spitz dogs with epilepsy. METHODS(More)