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101.
We used a prospective design to examine the association of marijuana use during the transition from late adolescence to early
adulthood with reported relationship quality with significant other in the mid- to late twenties. The community-based sample
consisted of 534 young adults (mean age=27) from upstate New York. The participants were interviewed at four points in time
at mean ages 14, 16, 22, and 27 years. Marijuana use during the transition from late adolescence to early adulthood was associated
with less relationship cohesion and harmony, and with more relationship conflict with control on variables reflecting the
participants’ early interpersonal adjustment and the quality of the relationships with their parents. Our findings suggest
that marijuana use during emerging adulthood predicts diminished relationship quality with a partner in the mid- to late twenties. 相似文献
102.
The role of language in the development of selective inhibitory control was examined in four groups: Children aged 7-9 years, children aged 11-13 years, adults aged 20-27 years, and adults aged 62-76 years. We used a modified stop-signal task in which participants inhibited or executed responses based on a visual signal. Response execution and inhibition were assessed by measurement of reaction times (RTs) and error rates to a go signal and RTs to a stop signal. Four task variations were compared in which subjects named (1) the stimulus, (2) the intended action (go/stop), (3) something irrelevant, or (4) nothing. Results showed different developmental trends for response execution and inhibition across the lifespan. Moreover, response execution was faster and more accurate when subjects named the stimulus instead of the intended action. The increase in response accuracy when naming the stimulus was greatest for children. In contrast to expectations, naming the intended action did not influence response inhibition. Overall, these findings suggest that verbal labeling supports the initiation but not the inhibition of actions. 相似文献
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104.
Jan Marten Ihme Franziska Lemke Kerstin Lieder Franka Martin Jonas C. Müller Sabine Schmidt 《Behavior research methods》2009,41(4):1183-1189
As the Internet, the global medium of the future, expands exponentially, it has become increasingly relevant to scientific
research. So far, there is but little evidence that online testing is suitable for collecting ability-test data. The present
article aims to shed light on some aspects of the issue by comparing the performance in a computer-administered ability test
of one lab sample and two online samples using a quasi-experimental design. Mean score differences appeared, but can be explained
by differences in age and education, and were not due to the test setting (online vs. laboratory). Also, there were no structural
differences between the achievement scores of both samples. Some limitations on generalizability are discussed. 相似文献
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Previous studies have shown that the perceived location of visual stimuli briefly flashed during smooth pursuit, saccades, or optokinetic nystagmus (OKN) is not veridical. We investigated whether these mislocalisations can also be observed for brief auditory stimuli presented during OKN. Experiments were carried out in a lightproof sound-attenuated chamber. Participants performed eye movements elicited by visual stimuli. An auditory target (white noise) was presented for 5 ms. Our data clearly indicate that auditory targets are mislocalised during reflexive eye movements. OKN induces a shift of perceived location in the direction of the slow eye movement and is modulated in the temporal vicinity of the fast phase. The mislocalisation is stronger for look- as compared to stare-nystagmus. The size and temporal pattern of the observed mislocalisation are different from that found for visual targets. This suggests that different neural mechanisms are at play to integrate oculomotor signals and information on the spatial location of visual as well as auditory stimuli. 相似文献
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Act-out and intermodal preferential looking (IPL) tasks were administered to 67 English children aged 2–0, 2–9 and 3–5 to assess their comprehension of canonical SVO transitive word order with both familiar and novel verbs. Children at 3–5 and at 2–9 showed evidence of comprehending word order in both verb conditions and both tasks, although children at 2–9 performed better with familiar than with novel verbs in the act-out task. Children at 2–0 showed no evidence of comprehending word order in either task with novel verbs; with familiar verbs they showed competence in the IPL task but not in the act-out task. The difference in performance for familiar and novel verbs from the same children at 2–0, on the IPL task, and at 2–9, on the act-out task, is consistent with the hypothesis that early linguistic/cognitive representations are graded in strength, with early representations still weak and very task dependent. However, these representations also become more abstract with development, as indicated by the familiarity effect even in the more sensitive IPL task. 相似文献
110.