806 research outputs found
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Children's online use of word order and morphosyntactic markers in Tagalog thematic role assignment: an eye-tracking study
We investigated whether Tagalog-speaking children incrementally interpret the first noun as the agent, even if verbal and nominal markers for assigning thematic roles are given early in Tagalog sentences. We asked five- and seven-year-old children and adult controls to select which of two pictures of reversible actions matched the sentence they heard, while their looks to the pictures were tracked. Accuracy and eye-tracking data showed that agent-initial sentences were easier to comprehend than patient-initial sentences, but the effect of word order was modulated by voice. Moreover, our eye-tracking data provided evidence that, by the first noun phrase, seven-year-old children looked more to the target in the agent-initial compared to the patient-initial conditions, but this word order advantage was no longer observed by the second noun phrase. The findings support language processing and acquisition models which emphasize the role of frequency in developing heuristic strategies (e.g., Chang, Dell, and Bock, 2006)
Word order preferences of Tagalog-speaking adults and children
This article investigates the word order preferences of Tagalog-speaking adults and five- and seven-year-old children. The participants were asked to complete sentences to describe pictures depicting actions between two animate entities. Adults preferred agent-initial constructions in the patient voice but not in the agent voice, while the children produced mainly agent-initial constructions regardless of voice. This agent-initial preference, despite the lack of a close link between the agent and the subject in Tagalog, shows that this word order preference is not merely syntactically-driven (subject-initial preference). Additionally, the children’s agent-initial preference in the agent voice, contrary to the adults’ lack of preference, shows that children do not respect the subject-last principle of ordering Tagalog full noun phrases. These results suggest that language-specific optional features like a subject-last principle take longer to be acquired
Word order preferences of Tagalog-speaking adults and children
This article investigates the word order preferences of Tagalog-speaking adults and five- and seven-year-old children. The participants were asked to complete sentences to describe pictures depicting actions between two animate entities. Adults preferred agent-initial constructions in the patient voice but not in the agent voice, while the children produced mainly agent-initial constructions regardless of voice. This agent-initial preference, despite the lack of a close link between the agent and the subject in Tagalog, shows that this word order preference is not merely syntactically-driven (subject-initial preference). Additionally, the children’s agent-initial preference in the agent voice, contrary to the adults’ lack of preference, shows that children do not respect the subject-last principle of ordering Tagalog full noun phrases. These results suggest that language-specific optional features like a subject-last principle take longer to be acquired
P02.24. Reducing stress and cultivating well being in educators and parents with special needs children: effects of a mindfulness training program
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Mental health and language: anxiety and depression impact sentence recall differently
The present study examined how two mental health disorders (anxiety and depression) impact people's ability to process language. Participants (N = 64) were asked to read and recall sentences. A secondary naming task was used to prompt lexical rehearsal of the second noun in the stimulus sentence that was either part of the subject (e.g., Tania and the glass moved…) or final phrase (e.g., ... above the glass and the donkey). Corrections during writing and recall mistakes were modelled in generalized mixed models. In line with the hypothesis that mental health disorders impair language processing, both anxiety and depression affected sentence recall accuracy but only anxiety impacted the execution process. Understanding the impact of mental health disorders on language processing is crucial to develop targeted support for individuals who would otherwise be systematically disadvantaged in educational, social, and professional life. Future research may benefit from separating samples dependent on symptom severity and comorbidity
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Word order priming in Tagalog (Western Austronesian), a symmetrical voice language
A catalogue of bright (K <9) M dwarfs
Using the Position and Proper Motion Extended-L (PPMXL) catalogue, we have used optical and near-infrared colour cuts together with a reduced proper motion cut to find bright M dwarfs for future exoplanet transit studies. PPMXL's low proper motion uncertainties allow us to probe down to smaller proper motions than previous similar studies. We have combined unique objects found with this method to that of previous work to produce 8479 K <9 M dwarfs. Low-resolution spectroscopy was obtained of a sample of the objects found using this selection method to gain statistics on their spectral type and physical properties. Results show a spectral-type range of K7-M4V. This catalogue is the most complete collection of K <9 M dwarfs currently available and is made available here.Peer reviewe
X-ray and Near-infrared Studies of a Star-forming Cloud; L1448
We present the results of X-ray and near-infrared (NIR) observations of
L1448, a star-forming region in the Perseus cloud complex using the Chandra
X-ray Observatory and the 4 m telescope at the Kitt Peak National Observatory.
We detect 72 X-ray sources in a ~17 arcmin x 17 arcmin region with a ~68 ks
ACIS exposure, for which we conduct follow-up NIR imaging observations in a
concentric ~11 arcmin x 11 arcmin region with FLAMINGOS down to m_Ks ~ 17 mag.
Twelve X-ray sources have NIR or optical counterparts. By plotting X-ray mean
energy versus NIR to X-ray flux ratio, the X-ray sources are clearly separated
into two groups. The X-ray spectral and temporal features as well as NIR
magnitudes and colors indicate that one group mainly consists of young stellar
objects (YSOs) in the cloud and the other of background extragalactic sources.
Ten X-ray-emitting YSO candidates are thus newly identified, which are low-mass
or brown dwarf mass sources from their NIR magnitudes. In addition, a possible
X-ray signal is found from a mid-infrared protostar L1448 IRS 3(A). The lack of
detection of this source in our deep NIR images indicates that this source has
a very steep spectral slope of > 3.2 in 2--10 micron.Comment: 13 pages, 7 postscript figures, accepted for publication in A
In Vivo Imaging Reveals Dendritic Targeting of Laminated Afferents by Zebrafish Retinal Ganglion Cells
SummaryTargeting of axons and dendrites to particular synaptic laminae is an important mechanism by which precise patterns of neuronal connectivity are established. Although axons target specific laminae during development, dendritic lamination has been thought to occur largely by pruning of inappropriately placed arbors. We discovered by in vivo time-lapse imaging that retinal ganglion cell (RGC) dendrites in zebrafish show growth patterns implicating dendritic targeting as a mechanism for contacting appropriate synaptic partners. Populations of RGCs labeled in transgenic animals establish distinct dendritic strata sequentially, predominantly from the inner to outer retina. Imaging individual cells over successive days confirmed that multistratified RGCs generate strata sequentially, each arbor elaborating within a specific lamina. Simultaneous imaging of RGCs and subpopulations of presynaptic amacrine interneurons revealed that RGC dendrites appear to target amacrine plexuses that had already laminated. Dendritic targeting of prepatterned afferents may thus be a novel mechanism for establishing proper synaptic connectivity
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