RESUMO
MEG data for five cerebral palsy patients were taken using a whole-head 122-channel MEG system. An experiment was designed to identify the possible effect of external pico-Tesla weak magnetic fields. The subjects were five male volunteers 17-46 years of age. External stimulation, field amplitude 1-7.5 pico-Tesla, was applied to each subject at their alpha-rhythm frequency. Fast Fourier transforms were applied to the data of all MEG channels and the rhythms of the patients were evaluated before and after pico-Tesla transcranial magnetic stimulation. The appliance of pico-Tesla weak magnetic fields showed the brains of the cerebral palsy patients had an enhance of the frequencies of (2-7 Hz) for each patient. This was followed by an improvement and normalization of their MEG. The results had a statistical significance in four out of five subjects (80%) and suggested the stimulation provided a positive contribution to the management of the symptoms of cerebral palsy patients.
Assuntos
Paralisia Cerebral/fisiopatologia , Paralisia Cerebral/terapia , Magnetoterapia , Magnetoencefalografia , Adolescente , Adulto , Ritmo alfa , Gerenciamento Clínico , Análise de Fourier , Humanos , Campos Magnéticos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto JovemRESUMO
Magnetoencephalographic (MEG) recordings from the brain of 10 children with autism (6 boys and 4 girls, with ages range from 5-12 years, mean[Formula: see text][Formula: see text][Formula: see text]SD: 8.3[Formula: see text][Formula: see text][Formula: see text]2.1) were obtained using a whole-head 122-channel MEG system in a magnetically shielded room of low magnetic noise. A double-blind experimental design was used in order to look for possible effect of external pico-Tesla Transcranial Magnetic Stimulation (pT-TMS). The pT-TMS was applied on the brain of the autistic children with proper field characteristics (magnetic field amplitude: 1-7.5[Formula: see text]pT, frequency: the alpha - rhythm of the patient 8-13[Formula: see text]Hz). After unblinding it was found a significant effect of an increase of frequencies in the range of 2-7[Formula: see text]Hz across the subjects followed by an improvement and normalization of their MEG recordings. The statistical analysis of our results showed a statistical significance at 6 out of 10 patients (60%). It is also observed an increase of alpha activity in autistic children at the end of one month after pT-TMS treatment at home. In conclusion, the application of pT-TMS has the prospective to be a noninvasive, safe and important modality in the management of autism children.
Assuntos
Transtorno Autístico/diagnóstico por imagem , Transtorno Autístico/terapia , Encéfalo/diagnóstico por imagem , Encéfalo/fisiopatologia , Magnetoencefalografia , Estimulação Magnética Transcraniana/métodos , Ritmo alfa , Transtorno Autístico/fisiopatologia , Criança , Pré-Escolar , Método Duplo-Cego , Feminino , Humanos , Entrevista Psicológica , Magnetoencefalografia/métodos , Masculino , Resultado do TratamentoRESUMO
Magnetoencephalographic (MEG) recordings of the brain in Parkinson's disease were obtained in order to look for possible effect of pico-Tesla transcranial magnetic stimulation (pT-TMS). We found a significant effect of an increase of frequencies in the range of 2-7 Hz across subjects. In addition, we observed the mean peak frequency difference within the 2-7 Hz band towards frequencies of less or equal to those frequencies of the alpha frequency range (8-13 Hz).
Assuntos
Lobo Frontal/fisiopatologia , Magnetoencefalografia/métodos , Doença de Parkinson/fisiopatologia , Estimulação Magnética Transcraniana/métodos , Idoso , Ondas Encefálicas/fisiologia , Método Duplo-Cego , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Magnetoencephalographic recordings, external picoTesla Transcranial Magnetic Stimulation (pT-TMS) and a double blind experimental design were used for the evaluation of 10 epilepsy patients (three males, seven females). Their ages ranged from 23 to 48 years. Our results showed an enhancement in the 2-7 Hz frequency range in five out of nine patients who had a statistically significant difference (55%). The pT-TMS could be a significant means for the treatment of epilepsy. Further research should be done prior to have final conclusions.
RESUMO
We investigated the beta rhythm in 10 children with autism disorders (six boys and four girls) aged 5-12 (mean± SD: 8.3± 2.1) before and after the application of pico Tesla transcranial magnetic stimulation (pT-TMS) using magnetoencephalography (MEG). The MEG was car-ried out in a magnetically shielded room with a whole-head 122-channel gradiometer. After applying pT-TMS, we observed a beta rhythm increase towards the frequency range of 18-26 Hz in seven out of 10 patients (70%). We created a score that rated the level of improvement for each patient: 1=some change; 2=minor change; and 3=major change. All patients had an improvement in their clinical symptoms after the application of pT-TMS. There was a correlation between the clinical score and the increase of channels in the frequency range 18-26 Hz after pT-TMS. We concluded that the application of pT-TMS affected the beta rhythm in children with autism disorder. Therefore, more studies need to be further conducted.