Author/Editor		Rozza, L; Calzolari, S; de Marco, P
Title		Is there any morphological difference between spontaneous and tactile evoked centro-temporal spike-and-wave complex?
Type		članek
Source		In: Stalberg EV, de Weerd AW, Zidar J, editors. ECCN 98. 9th European congress of clinical neurophysiology; 1998 Jun 4-7; Ljubljana. Bologna: Monduzzi Editore,
Publication year		1998
Volume		str. 587-91
Language		eng
Abstract		We analyse the digital EEG recordings of 9 patients affected by Somatosensory Evoked Spike Epilepsy who present spike and wave complexes both from a spontaneous focus and after tactile stimulation. In each patient up to 10 spontaneous spike-wave complexes were selected and averaged aligning them on the first negative peak of the complex. The same procedure was used with tactile evoked spike and wave complexes. Then, an averaged spike-wave complex (ASWC) was calculated for both groups. Amplitude and duration of each component, slope and sharpness of the spike of the resulting ASWCs were measured. For each variable, the difference between the groups was evaluated by paired Student's t test. A point correlation was calculated by means of Person coefficent. No significant difference was found as regard all the valued variables ; the correlation coeficient was 0.98. We conclude that there is no morphological differene between spontanous and tactile evoked centro-temporal spike-and-wave complex.
Descriptors		EPILEPSY EVOKED POTENTIALS, SOMATOSENSORY ELECTROENCEPHALOGRAPHY CHILD