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BACKGROUND Patients with schizophrenia have impairments in several domains of cognition, including working memory/executive function, verbal memory, language, oculomotor scanning/psychomotor speed, and general intelligence. Impairments have also been found in unaffected siblings, suggesting they could be heritable. To assess the suitability of cognitive(More)
OBJECTIVE Impaired attention has frequently been observed in studies of unaffected siblings of patients with schizophrenia. To assess the suitability of impaired attention for use as an intermediate phenotype in genetic studies, the authors estimated the relative risk of impaired attention in a large group of siblings. METHOD The authors used the(More)
The purpose of this study is to examine and compare the amount of inter-speaker variability in the articulation of monozygotic twin pairs (MZ), dizygotic twin pairs (DZ), and pairs of unrelated twins with the goal of examining in greater depth the influence of physiology on articulation. Physiological parameters are assumed to be very similar in MZ twin(More)
PURPOSE The purpose of this study was to further explore the understanding of speaker-specific realizations of the /s/-/ʃ/ contrast in German in relation to individual differences in palate shape. METHOD Two articulatory experiments were carried out with German native speakers. In the first experiment, 4 monozygotic and 2 dizygotic twin pairs were(More)
The purpose of this study is to investigate the potential relationship between speaking fundamental frequency and acoustic vowel space size, thus testing a possible perceptual source of sex-specific differences in acoustic vowel space size based on the greater inter-harmonic spacing and a poorer definition of the spectral envelope of higher pitched voices.(More)
Young multi-ethnolectal speakers of Hamburg-German introduced an alternation of /ç/ to [ʃ] following a lax front vowel /ɪ/ [1]. We conducted perception studies exploiting this contrast in Berlin (Germany), a city with large multi-ethnic neighborhoods. This alternation is pervasive and noticeable, it is mocked and stigmatized and there is an awareness that(More)
German speakers receive different ratings in their perceived vocal attractiveness and personality characteristics. An experiment was conducted to evaluate the perceived personality attributions of 32 German listeners and find acoustic cues that correlate to these attributions. The attributed opposition pairs on which the speakers were judged were reduced by(More)
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