Photoparoxysmal responses
Sixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. The PPR showed prevalence in women (75.4%). Seizures were found in 66.1% of cases. The rest recordings were abnormal in 41.8% with prevalence of generalized paroxysm. Eight patterns of PPR were observed, bein...
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| Format: | Article |
| Language: | English |
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Thieme Revinter Publicações
1990-09-01
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| Series: | Arquivos de Neuro-Psiquiatria |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1990000300006&lng=en&tlng=en |
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| author | Mauro Muszkat Rosana M. Guimarães Ademir B. da Silva Carlos J. Reis de Campos |
| author_facet | Mauro Muszkat Rosana M. Guimarães Ademir B. da Silva Carlos J. Reis de Campos |
| author_sort | Mauro Muszkat |
| collection | DOAJ |
| description | Sixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. The PPR showed prevalence in women (75.4%). Seizures were found in 66.1% of cases. The rest recordings were abnormal in 41.8% with prevalence of generalized paroxysm. Eight patterns of PPR were observed, being polyspike mixed to slow wave the most frequent (53%). The epileptic group showed a bimodal distribution in the several bands of photic stimulation, near 8 and 20-24 Hz. A sustained paroxysmal abnormality persisting after the photic stimulation was present in 6 epileptic patients. |
| format | Article |
| id | doaj-art-63e574571d8d4191988db308bf8ba28a |
| institution | OA Journals |
| issn | 1678-4227 |
| language | English |
| publishDate | 1990-09-01 |
| publisher | Thieme Revinter Publicações |
| record_format | Article |
| series | Arquivos de Neuro-Psiquiatria |
| spelling | doaj-art-63e574571d8d4191988db308bf8ba28a2025-08-20T01:57:09ZengThieme Revinter PublicaçõesArquivos de Neuro-Psiquiatria1678-42271990-09-0148330130510.1590/S0004-282X1990000300006S0004-282X1990000300006Photoparoxysmal responsesMauro Muszkat0Rosana M. Guimarães1Ademir B. da Silva2Carlos J. Reis de Campos3Universidade Federal de São PauloUniversidade Federal de São PauloUniversidade Federal de São PauloUniversidade Federal de São PauloSixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. The PPR showed prevalence in women (75.4%). Seizures were found in 66.1% of cases. The rest recordings were abnormal in 41.8% with prevalence of generalized paroxysm. Eight patterns of PPR were observed, being polyspike mixed to slow wave the most frequent (53%). The epileptic group showed a bimodal distribution in the several bands of photic stimulation, near 8 and 20-24 Hz. A sustained paroxysmal abnormality persisting after the photic stimulation was present in 6 epileptic patients.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1990000300006&lng=en&tlng=en |
| spellingShingle | Mauro Muszkat Rosana M. Guimarães Ademir B. da Silva Carlos J. Reis de Campos Photoparoxysmal responses Arquivos de Neuro-Psiquiatria |
| title | Photoparoxysmal responses |
| title_full | Photoparoxysmal responses |
| title_fullStr | Photoparoxysmal responses |
| title_full_unstemmed | Photoparoxysmal responses |
| title_short | Photoparoxysmal responses |
| title_sort | photoparoxysmal responses |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1990000300006&lng=en&tlng=en |
| work_keys_str_mv | AT mauromuszkat photoparoxysmalresponses AT rosanamguimaraes photoparoxysmalresponses AT ademirbdasilva photoparoxysmalresponses AT carlosjreisdecampos photoparoxysmalresponses |