TY - JOUR A1 - Bijeljac-Babic, Ranka A1 - Höhle, Barbara A1 - Nazzi, Thierry T1 - Early Prosodic Acquisition in Bilingual Infants: The Case of the Perceptual Trochaic Bias JF - Frontiers in psychology N2 - Infants start learning the prosodic properties of their native language before 12 months, as shown by the emergence of a trochaic bias in English-learning infants between 6 and 9 months (Jusczyk et al., 1993), and in German-learning infants between 4 and 6 months (Huhle et al., 2009, 2014), while French-learning infants do not show a bias at 6 months (Hohle et al., 2009). This language-specific emergence of a trochaic bias is supported by the fact that English and German are languages with trochaic predominance in their lexicons, while French is a language with phrase-final lengthening but lacking lexical stress. We explored the emergence of a trochaic bias in bilingual French/German infants, to study whether the developmental trajectory would be similar to monolingual infants and whether amount of relative exposure to the two languages has an impact on the emergence of the bias. Accordingly, we replicated Hohle et al. (2009) with 24 bilingual 6-month-olds learning French and German simultaneously. All infants had been exposed to both languages for 30 to 70% of the time from birth. Using the Head Preference Procedure, infants were presented with two lists of stimuli, one made up of several occurrences of the pseudoword /GAba/ with word-initial stress (trochaic pattern), the second one made up of several occurrences of the pseudoword /gaBA/ with word-final stress (iambic pattern). The stimuli were recorded by a native German female speaker. Results revealed that these French/German bilingual 6-month olds have a trochaic bias (as evidenced by a preference to listen to the trochaic pattern). Hence, their listening preference is comparable to that of monolingual German-learning 6-month-olds, but differs from that of monolingual French-learning 6-month-olds who did not show any preference (Noble et al., 2009). Moreover, the size of the trochaic bias in the bilingual infants was not correlated with their amount of exposure to German. The present results thus establish that the development of a trochaic bias in simultaneous bilinguals is not delayed compared to monolingual German-learning infants (Hohle et al., 2009) and is rather independent of the amount of exposure to German relative to French. KW - bilinguals KW - infants KW - language KW - prosody KW - lexical stress KW - dominance effects Y1 - 2016 U6 - https://doi.org/10.3389/fpsyg.2016.00210 SN - 1664-1078 VL - 7 SP - 1753 EP - 1802 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Telkemeyer, Silke A1 - Rossi, Sonja A1 - Nierhaus, Till A1 - Steinbrink, Jens A1 - Obrig, Hellmuth A1 - Wartenburger, Isabell T1 - Acoustic processing of temporally modulated sounds in infants evidence from a combined near-infrared spectroscopy and EEG study JF - Frontiers in psychology N2 - Speech perception requires rapid extraction of the linguistic content from the acoustic signal. The ability to efficiently process rapid changes in auditory information is important for decoding speech and thereby crucial during language acquisition. Investigating functional networks of speech perception in infancy might elucidate neuronal ensembles supporting perceptual abilities that gate language acquisition. Interhemispheric specializations for language have been demonstrated in infants. How these asymmetries are shaped by basic temporal acoustic properties is under debate. We recently provided evidence that newborns process non-linguistic sounds sharing temporal features with language in a differential and lateralized fashion. The present study used the same material while measuring brain responses of 6 and 3 month old infants using simultaneous recordings of electroencephalography (EEG) and near-infrared spectroscopy (NIRS). NIRS reveals that the lateralization observed in newborns remains constant over the first months of life. While fast acoustic modulations elicit bilateral neuronal activations, slow modulations lead to right-lateralized responses. Additionally, auditory-evoked potentials and oscillatory EEG responses show differential responses for fast and slow modulations indicating a sensitivity for temporal acoustic variations. Oscillatory responses reveal an effect of development, that is, 6 but not 3 month old infants show stronger theta-band desynchronization for slowly modulated sounds. Whether this developmental effect is due to increasing fine-grained perception for spectrotemporal sounds in general remains speculative. Our findings support the notion that a more general specialization for acoustic properties can be considered the basis for lateralization of speech perception. The results show that concurrent assessment of vascular based imaging and electrophysiological responses have great potential in the research on language acquisition. KW - infants KW - speech perception KW - language acquisition KW - auditory processing KW - near-infrared spectroscopy KW - event related potentials KW - brain oscillations Y1 - 2011 U6 - https://doi.org/10.3389/fpsyg.2011.00062 SN - 1664-1078 VL - 2 IS - 2 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Wellmann, Caroline A1 - Holzgrefe-Lang, Julia A1 - Truckenbrodt, Hubert A1 - Wartenburger, Isabell A1 - Höhle, Barbara T1 - How each prosodic boundary cue matters evidence from German infants JF - Frontiers in psychology N2 - Previous studies have revealed that infants aged 6-10 months are able to use the acoustic correlates of major prosodic boundaries, that is, pitch change, preboundary lengthening, and pause, for the segmentation of the continuous speech signal. Moreover, investigations with American-English- and Dutch-learning infants suggest that processing prosodic boundary markings involves a weighting of these cues. This weighting seems to develop with increasing exposure to the native language and to underlie crosslinguistic variation. In the following, we report the results of four experiments using the headturn preference procedure to explore the perception of prosodic boundary cues in German infants. We presented 8-month-old infants with a sequence of names in two different prosodic groupings, with or without boundary markers. Infants discriminated both sequences when the boundary was marked by all three cues (Experiment 1) and when it was marked by a pitch change and preboundary lengthening in combination (Experiment 2). The presence of a pitch change (Experiment 3) or preboundary lengthening (Experiment 4) as single cues did not lead to a successful discrimination. Our results indicate that pause is not a necessary cue for German infants. Pitch change and preboundary lengthening in combination, but not as single cues, are sufficient. Hence, by 8 months infants only rely on a convergence of boundary markers. Comparisons with adults' performance on the same stimulus materials suggest that the pattern observed with the 8-month-olds is already consistent with that of adults. We discuss our findings with respect to crosslinguistic variation and the development of a language-specific prosodic cue weighting. KW - infants KW - language acquisition KW - speech perception KW - prosodic bootstrapping KW - prosodic boundary cues KW - cue weighting KW - intonation phrase boundary KW - headturn preference procedure Y1 - 2012 U6 - https://doi.org/10.3389/fpsyg.2012.00580 SN - 1664-1078 VL - 3 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Ott, Susan A1 - Höhle, Barbara T1 - Verb inflection in German-learning children with typical and atypical language acquisition BT - the impact of subsyllabic frequencies JF - Journal of child language N2 - Previous research has shown that high phonotactic frequencies facilitate the production of regularly inflected verbs in English-learning children with specific language impairment (SLI) but not with typical development (TD). We asked whether this finding can be replicated for German, a language with a much more complex inflectional verb paradigm than English. Using an elicitation task, the production of inflected nonce verb forms (3rd person singular with - t suffix) with either high-or low-frequency subsyllables was tested in sixteen German-learning children with SLI (ages 4;1-5;1), sixteen TD-children matched for chronological age (CA) and fourteen TD-children matched for verbal age (VA) (ages 3;0-3;11). The findings revealed that children with SLI, but not CA-or VA-children, showed differential performance between the two types of verbs, producing more inflectional errors when the verb forms resulted in low-frequency subsyllables than when they resulted in high-frequency subsyllables, replicating the results from English-learning children. KW - english past tense KW - sentence repetition KW - nonword repetition KW - speaking children KW - impairment KW - morphology KW - infants KW - speech KW - words Y1 - 2012 U6 - https://doi.org/10.1017/S030500091200027X SN - 0305-0009 VL - 40 IS - 1 SP - 169 EP - 192 PB - Cambridge University Press CY - New York ER - TY - JOUR A1 - Schmitz, Michaela A1 - Höhle, Barbara A1 - Müller, Anja A1 - Weissenborn, Jürgen T1 - The recognition of the prosodic focus position in German-learning infants from 4 to 14 months N2 - The aim of the present study was to elucidate in a study with 4-, 6-, 8-, and 14-month-old German-learning children, when and how they may acquire the regularities which underlie Focus-to-Stress Alignment (FSA) in the target language, that is, how prosody is associated with specific communicative functions. Our findings suggest, that 14-month-olds have already found out that German allows for variable focus positions, after having gone through a development which goes from a predominantly prosodically driven processing of the input to a processing where prosody interacts more and more with the growing lexical and syntactic knowledge of the child. KW - prosodic focus KW - HTP KW - infants Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-19566 ER -