Abstract
Information extraction technology, as defined and developed through the U.S. DARPA Message Understanding Conferences (MUCs), has proved successful at extracting information primarily from newswire texts and in domains concerned with human activity. This paper presents an Information Extraction (IE) system, intended to extract structured information from medical reports written in Portuguese. A first evaluation is performed and the results are discussed.

Abstract
This work is about an environment in which it is possible to relate and treat sleep EEG, respiratory and cardiac data coming from different sources. Some data treatment is done on-line and full data treatment is allowed off-line. The on-line treatment includes Sleep Staging using an Artificial Neural Network (ANN). This paper will try to enhance the advantages of Object Oriented Programming in the package we developed and the consequent reliability of the system architecture.

Abstract
A biomedical digital signal format is presented. The format supports both raw and processed data, multiple epochs, several signal structures and representations and an open architecture. In order to support the format, an object oriented C language library is also presented.

Abstract
The integration in a computerized system of multimedia information used in a neurophysiology department is presented. Special attention is given to biological signal integration in the system due to its difficulty and absence of standard interface with acquisition equipment.

Abstract
We describe four patients with complex partial seizures and cystic dilatation of one or both occipital horns. The onset of epilepsy was in early infancy in the four cases, with simple and complex partial seizures with secondary generalization; two patients have visual symptomatology at the beginning of seizures. Three patients have an important mental retardation, two of them have visual field defects and one patient has a hemioatrophy. The four patients were studied with CT scan, MRI and several scalp EEG recordings with computerized signal processing methods and simultaneous cognitive studies. None of them had cerebral angiography. These patients are similar to Remillard et al. series of 8 patients with temporal lobe epilepsy and associated visual field defects and enlargement of the occipital horn. The perinatal occlusion of the posterior cerebral artery was the considered etiology which was afterwards questioned by Roger et al. in their series of 500 CT scans of epileptic patients. Our results suggest that epileptogenic areas exceed the lesions seen on neuroradiological imaging. This is of the outmost importance when considering the hypothesis of surgery to control seizures in these patients.

Abstract
The AA describe a computerized test system to study the influence of subclinical EEG discharges on cognitive functions. In 25 patients studied with this method we found transitory cognitive impairment in 9 patients, with prolonged reaction time and increased number of errors.