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Is there an ideal time window for language acquisition after which nativelike
representation and processing are unattainable? Although this question has
been heavily debated, no consensus has been reached. Here, we present
evidence for a sensitive period in language development and show that it is
specific to grammar. We conducted a masked priming task with a group of
Turkish-German bilinguals and examined age of acquisition (AoA) effects on
the processing of complex words. We compared a subtle but meaningful
linguistic contrast, that between grammatical inflection and lexical-based
derivation. The results showed a highly selective AoA effect on inflectional
(but not derivational) priming. In addition, the effect displayed a discontinuity
indicative of a sensitive period: Priming from inflected forms was nativelike
when acquisition started before the age of 5 but declined with increasing
AoA. We conclude that the acquisition of morphological rules expressing
morphosyntactic properties is constrained by maturational factors.
The current study explored effects of continuous hand motion on the allocation of visual attention. A concurrent paradigm was used to combine visually concealed continuous hand movements with an attentionally demanding letter discrimination task. The letter probe appeared contingent upon the moving right hand passing through one of six positions. Discrimination responses were then collected via a keyboard press with the static left hand. Both the right hand's position and its movement direction systematically contributed to participants' visual sensitivity. Discrimination performance increased substantially when the right hand was distant from, but moving toward the visual probe location (replicating the far-hand effect, Festrnan et al., 2013). However, this effect disappeared when the probe appeared close to the static left hand, supporting the view that static and dynamic features of both hands combine in modulating pragmatic maps of attention.
In a production experiment and two follow-up perception experiments on read German we investigated the (de-)coding of discourse-new, inferentially and textually accessible and given discourse referents by prosodic means. Results reveal that a decrease in the referent’s level of givenness is reflected by an increase in its prosodic prominence (expressed by differences in the status and type of accent used) providing evidence for the relevance of different intermediate types of information status between the poles given and new. Furthermore, perception data indicate that the degree of prosodic prominence can serve as the decisive cue for decoding a referent’s level of givenness.