This article investigates the acquisition of the focus particle auch 'also' by German-learning children. We report data from spontaneous and elicited production of utterances with the focus particle auch by 1- to 4-year-olds complementing earlier findings of a delayed production of the unaccented auch compared to the accented one. But in contrast to previous studies showing that children have problems interpreting sentences with accented and unaccented auch, we found indications for adult-like comprehension in an eye-tracking experiment by children from 3 years on. These results reflect early availability of adult-like linguistic competence with respect to both auch-variants which does not always lead to adult-like performance. This variation in children's performance across tasks is considered to be due to additional modality and task specific constraints. Development in this area thus reflects not a change in underlying knowledge, but rather a change in the constraints on its behavioral manifestation.
This article presents new findings for the acquisition of the focus particle auch (‘also’) in German-learning children. In a longitudinal study with 11 children between 1;00 and 3;00 years of age complemented by two experiments with children aged 2;4 and 2;8, the authors investigated children’s production of the accented and unaccented auch. The results confirm earlier findings of a temporal delay between the first occurrences of both auch-variants. Based on the empirical findings, an account for this asymmetry is proposed that relates it to a more general developmental tendency that is characterized by a growing linguistic explicitness in embedding a given utterance in its discourse context. It is suggested that the observed delay is caused by the type of relation between the particle and its related constituent: in contrast to the accented auch the unaccented auch is anaphorically related to the sentence topic. It is proposed that the initial omission reflects a general tendency in early child language to drop topic material.
Fourteen-month-old German infants can distinguish between isolated non-finite verb-noun and noun-verb verb-phrases [1]. This study investigated whether prosody is the cause of this differential attention. The prosodic content of 144 verb-phrases was manipulated, and the impact of this manipulation on infants’ perception was examined. Our results show that, even though prosody does influence infants’ perception, the segmental content of phrases (i.e., morphological markers) is also crucial for German infants’ early sensitivity to word-order differences within verbphrases.
Recent work has shown that English-learning 18-month-olds can detect the relationship between discontinuous morphemes such as is and -ing in Grandma is always running (Gomez, 2002; Santelmann & Jusczyk, 1998) but only at a maximum of 3 intervening syllables. In this article we examine the tracking of discontinuous dependencies in children acquiring German. Due to freer word order, German allows for greater distances between dependent elements and a greater syntactic variety of the intervening elements than English does. The aim of this study was to investigate whether factors other than distance may influence the child's capacity to recognize discontinuous elements. Our findings provide evidence that children's recognition capacities are affected not only by distance but also by their ability to linguistically analyze the material intervening between the dependent elements. We speculate that this result supports the existence of processing mechanisms that reduce a discontinuous relation to a local one based on subcategorization relations.
Kinetics of apo B and apo AI were assessed in 8 patients with mixed hyperlipidemia at baseline and after 8 weeks of atorvastatin 80 mg q.d. and micronised fenofibrate 200 mg q.d. in a cross-over study. Both increased hepatic production and decreased catabolism of VLDL accounted for elevated cholesterol and triglyceride concentrations at baseline. Atorvastatin significantly decreased triglyceride, total, VLDL and LDL cholesterol and apo B concentrations (-65%, -36%, -57%, -40% and -33%, respectively, P < 0.05). Kinetic analysis revealed that atorvastatin stimulated the catabolism of apo B containing lipoproteins, enhanced the delipidation of VLDL1 and decreased VLDL1 production. Fenofibrate lowered triglycerides and VLDL cholesterol (-57% and -64%, respectively, P < 0.05) due to enhanced delipidation of VLDL1 and VLDL2 and increased VLDL1 catabolism. Changes of HDL particle composition accounted for the increase of HDL cholesterol during atorvastatin and fenofibrate (18% and 23%, P < 0.01). Only fenofibrate increased apo AI concentrations through enhanced apo AI synthesis (45%, P < 0.05). We conclude that atorvastatin exerts additional beneficial effects on the metabolism of apo B containing lipoproteins unrelated to an increase in LDL receptor activity. Fenofibrate but not atorvastatin increases apo Al production and plasma turnover.
Kinetics of apo B and apo AI were assessed in 8 patients with mixed hyperlipidemia at baseline and after 8 weeks of atorvastatin 80 mg q.d. and micronised fenofibrate 200 mg q.d. in a cross-over study. Both increased hepatic production and decreased catabolism of VLDL accounted for elevated cholesterol and triglyceride concentrations at baseline. Atorvastatin significantly decreased triglyceride, total, VLDL and LDL cholesterol and apo B concentrations (−65%, −36%, −57%, −40% and −33%, respectively, P < 0.05). Kinetic analysis revealed that atorvastatin stimulated the catabolism of apo B containing lipoproteins, enhanced the delipidation of VLDL1 and decreased VLDL1 production. Fenofibrate lowered triglycerides and VLDL cholesterol (−57% and −64%, respectively, P < 0.05) due to enhanced delipidation of VLDL1 and VLDL2 and increased VLDL1 catabolism. Changes of HDL particle composition accounted for the increase of HDL cholesterol during atorvastatin and fenofibrate (18% and 23%, P < 0.01). Only fenofibrate increased apo AI concentrations through enhanced apo AI synthesis (45%, P < 0.05). We conclude that atorvastatin exerts additional beneficial effects on the metabolism of apo B containing lipoproteins unrelated to an increase in LDL receptor activity. Fenofibrate but not atorvastatin increases apo AI production and plasma turnover.
How do children determine the syntactic category of novel words? In this article we present the results of 2 experiments that investigated whether German children between 12 and 16 months of age can use distributional knowledge that determiners precede nouns and subject pronouns precede verbs to syntactically categorize adjacent novel words. Evidence from the head-turn preference paradigm shows that, although 12- to 13-month-olds cannot do this, 14- to 16-month-olds are able to use a determiner to categorize a following novel word as a noun. In contrast, no categorization effect was found for a novel word following a subject pronoun. To understand this difference we analyzed adult child-directed speech. This analysis showed that there are in fact stronger co-occurrence relations between determiners and nouns than between subject pronouns and verbs. Thus, in German determiners may be more reliable Cues to the syntactic category of an adjacent novel word than are subject pronouns. We propose that the capacity to syntactically categorize novel words, demonstrated here for the first time in children this young, mediates between the recognition of the specific morphosyntactic frame in which a novel word appears and the word-to-world mapping that is needed to build up a semantic representation for the novel word.
BACKGROUND:Dyslipidemia (predominantly hypertriglyceridemia) is frequently seen in patients receiving antiretroviral combination therapy (ART). However, the underlying mechanisms and long-term risks (e.g., cardiovascular events) are still unclear. OBJECTIVES/METHODS:In 5 patients with ART-associated dyslipidemia, stable isotope labeled amino acid tracer (d3-Leu) kinetic analysis over 12 days was used to investigate the metabolism of apolipoprotein B-containing lipoproteins (very low density lipoproteins [VLDL]1, VLDL2, intermediate density lipoproteins [IDL] and low density lipoproteins [LDL]). Data were compared with those in 6 healthy normolipidemic controls. RESULTS:The patients under ART showed significantly increased fasting triglycerides (359 vs. 77 mg/dl) and VLDL (54 vs. 15 mg/dl), compared with controls. They had significantly higher total cholesterol (213 vs. 157 mg/dl) and there was a nonsignificant trend toward higher LDL (136 vs. 93 mg/dl), and toward lower HDL (26 vs. 46 mg/dl). The ratio of large, buoyant LDL1 over small, dense LDL2 was markedly reduced in patients under ART (0.80 vs. 2.00). Total apo B synthesis was significantly increased (25.5 vs. 14.5 mg/kg/d) and shifted toward triglyceride rich VLDL1 (18.5 vs. 8.7 mg/kg/d) in patients receiving ART. There was also a significantly reduced rate of apo B lipoprotein transfer from VLDL1 to VLDL2 (3.7 vs. 20.7 pools/d). In addition, all patients revealed insulin resistance. CONCLUSIONS:These data indicate that increased triglycerides in HIV-infected patients with ART are primary due to reduced rates of VLDL transfer into denser lipoproteins implying a lower rate of lipoprotein lipase-mediated delipidation. In addition, total apo B synthesis was increased and shifted toward triglyceride-rich VLDL1. Overall, this lipoprotein profile in patients with ART-associated dyslipidemia implies an increased risk for cardiovascular events.
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 mayacquire the regularities which underlie Focus-to-Stress Alignment(FSA) in the target language, that is, how prosody is associated withspecific communicative functions. Our findings suggest, that 14-month-olds have already found out that German allows for variablefocus positions, after having gone through a development which goesfrom a predominantly prosodically driven processing of the input to aprocessing where prosody interacts more and more with the growinglexical and syntactic knowledge of the child.