PubMed HealthSearch

Biomedical subjects

I Voinescu

Publications and source records attributed to I Voinescu.

At least 19 recordsLinked to original sources

Effect of hypothermia on focal experimental seizures.

The effect of general hypothermia was investigated in 15 unanesthetized cats. The animals were immobilized with Flaxedil and maintained on mechanical respiration. An epileptogenic focus was induced by stereo-tactical injection of penicillin to the right hippocampus. Cooling of the body was followed by a marked decrease of the amplitude and frequency of the penicillin spikes. The antiepileptic effect of general hypothermia was not dependent on brain stem section as suggested by previous investigations. Seizures generated by a hippocampic penicillin focus were more resistant to hypothermia than discharges produced by penicillin applied to the visual cortex.

Animals

Type and frequency of phonetic errors in aphasics: therapeutic aspects.

Fifty aphasics were studied in three separate groups: nonfluent Broca, fluent Wernicke and fluent anomics in order to form a therapeutic guide of their phonetic errors (omission substitution, addition, repeated phonemes, perseveration of phonemes belonging to the preceding word, reversed order, phonematic targetting and misplacing. Frequency of phonetic error was also assessed.

Anomia

Type and frequency of phonemic errors in aphasics.

The research, performed on 80 Romanian-speaking aphasics showed that the frequency of various types of phonetic errors is quite different in various languages, as presented in aphasiologic references. In our study the main phonemic errors were in the order of their frequency as follows: omissions, substitutions and additions of phonemes. The other types of errors appeared rather infrequently, in decreasing order: targeting (tir à la cible phonématique), order reversing, misplacing, repeated phonemes, preservation of phonemes of previous words. It must be underlined that for English-speaking aphasics some authors observed that substitutions are the most frequent phonemic errors but some others considered that additions are more frequent than other types of phonemic errors.

Aphasia, Broca

Use of word- or short-syntagma-stimulation for utterance production in aphasics.

In 50 aphasics and 30 normal controls, a therapeutic stimulating technique using different classes of words and short syntagmas was performed. The different classes of words or short syntagmas elicited different types of answers. Unlike controls, the aphasics showed a tendency to less often include the stimulus in the answer and to substitute it inadequately. The stimulus was not too often modified when included in the answer, the initial position being more frequent, as a support for sentence production. Grammatical agreement was deficient. Poor structures of the answers were predominant. After speech therapy using various types of stimuli, the performance in aphasics improved. Since stimuli of different morphological classes produce different performances, it seems necessary to use all types of stimuli in the speech therapy.

Adult