共查询到20条相似文献,搜索用时 15 毫秒
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前瞻性记忆是指对将要进行的活动或事件的记忆。前瞻记忆中,包含了前瞻成分和回溯成分。前人研究中,缺乏对前瞻成分和回溯成分有效的分离手段,使得对前瞻记忆机制的探讨缺乏深入挖掘。本文将MPT模型与Cohen等人的研究范式对比,分析了该模型在事件性前瞻记忆研究中的优势。文章对模型的理论基础,模型的主要内容,模型的数据计算方法,模型的效度以及模型的应用等几个方面进行了介绍,同时对模型使用中需要注意的问题进行了讨论。 相似文献
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This article introduces phase resampling, an existing but rarely used surrogate data method for making statistical inferences of Granger causality in frequency domain time series analysis. Granger causality testing is essential for establishing causal relations among variables in multivariate dynamic processes. However, testing for Granger causality in the frequency domain is challenging due to the nonlinear relation between frequency domain measures (e.g., partial directed coherence, generalized partial directed coherence) and time domain data. Through a simulation study, we demonstrate that phase resampling is a general and robust method for making statistical inferences even with short time series. With Gaussian data, phase resampling yields satisfactory type I and type II error rates in all but one condition we examine: when a small effect size is combined with an insufficient number of data points. Violations of normality lead to slightly higher error rates but are mostly within acceptable ranges. We illustrate the utility of phase resampling with two empirical examples involving multivariate electroencephalography (EEG) and skin conductance data. 相似文献
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Elizabeth A. Maylor 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(2):107-128
Conflicting results in the literature raise the possibility of a nonmonotonic relationship between adult age and event-based prospective memory performance. In this study, young (n = 45; mean age = 20), middle-aged (n = 56; mean age = 59), and elderly (n = 59; mean age = 76) volunteers were shown slides of famous people. The background task was to name each face while the prospective memory task was to mark the trial number if the person was wearing glasses. Although the stimuli were selected to favor the older participants, the proportion of prospective memory responses to target events declined monotonically with increasing age (.77, .62, and .26, for the young, middle-aged, and elderly, respectively). Analysis of the prospective memory data in terms of hazard functions for the first failure and the first success also revealed some significant age deficits. The elderly group reported thinking less about the prospective memory component than the young and middle-aged groups. Also, the elderly group was less likely to blame the demands of the background task for their prospective memory failures than the young and middle-aged groups. However, age differences in prospective memory performance remained significant after controlling (in separate analyses) for past experience (hazard functions), memory for the task instructions, self-rated thoughts, and reasons for failure. The results are discussed in relation to work on goal neglect, and possible explanations for the conflicting results in the literature are presented. 相似文献
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Testing Structural Models of DSM-IV Symptoms of Common Forms of Child and Adolescent Psychopathology
Lahey BB Rathouz PJ Van Hulle C Urbano RC Krueger RF Applegate B Garriock HA Chapman DA Waldman ID 《Journal of abnormal child psychology》2008,36(2):187-206
Confirmatory factor analyses were conducted of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) symptoms of common mental disorders derived from structured interviews of a representative sample
of 4,049 twin children and adolescents and their adult caretakers. A dimensional model based on the assignment of symptoms
to syndromes in DSM-IV fit better than alternative models, but some dimensions were highly correlated. Modest sex and age
differences in factor loadings and correlations were found that suggest that the dimensions of psychopathology are stable
across sex and age, but slightly more differentiated at older ages and in males. The dimensions of symptoms were found to
be hierarchically organized within higher-order “externalizing” and “internalizing” dimensions, which accounted for much of
their variance. Major depression and generalized anxiety disorder were substantially correlated with both the “externalizing”
dimension and the “internalizing” dimension, however, suggesting the need to reconceptualize the nature of these higher-order
dimensions. 相似文献
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Jeremy Butterfield 《国际科学哲学研究》2007,21(3):295-328
I discuss the idea of relativistic causality, i.e., the requirement that causal processes or signals can propagate only within the light‐cone. After briefly locating this requirement in the philosophy of causation, my main aim is to draw philosophers’ attention to the fact that it is subtle, indeed problematic, in relativistic quantum physics: there are scenarios in which it seems to fail.
I set aside two such scenarios, which are familiar to philosophers of physics: the pilot‐wave approach, and the Newton–Wigner representation. I instead stress two unfamiliar scenarios: the Drummond–Hathrell and Scharnhorst effects. These effects also illustrate a general moral in the philosophy of geometry: that the mathematical structures, especially the metric tensor, that represent geometry get their geometric significance by dint of detailed physical arguments. 相似文献
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本研究旨在探究不同执行意向编码形式对前瞻记忆加工机制的影响是否存在差异。结果显示在低认知负荷下,混合编码效果最好,仅执行意向编码次之,标准编码效果最差,而在高认知负荷下三种编码效果无差异。眼动指标显示在低认知负荷下混合编码的注视点数量最多,总注视时间最长;在混合编码条件下进行中任务和前瞻记忆任务的总注视时间均长于仅执行意向编码和标准编码。结果说明,执行意向编码容易受认知负荷的影响;在低认知负荷下混合编码的被试对任务刺激进行更多的监控和加工,而仅执行意向编码促进前瞻记忆任务的自动化加工。 相似文献
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Andrea M. Hussong Wenjing Huang Daniel Serrano Patrick J. Curran Laurie Chassin 《Journal of abnormal child psychology》2012,40(8):1265-1276
The current study examined the distal, proximal, and time-varying effects of parents’ alcohol-related consequences on adolescents’ substance use. Previous studies show that having a parent with a lifetime diagnosis of alcoholism is a clear risk factor for adolescents’ own substance use. Less clear is whether the timing of a parent’s alcohol-related consequences differentially predicts the adolescent’s own substance involvement. Using a multilevel modeling approach, we tested whether adolescents showed elevated rates of alcohol, heavy alcohol, marijuana and other illegal drug use (a) at the same time that parents showed alcohol-related consequences (time-varying effects), (b) if parents showed greater alcohol-related consequences during the child’s adolescence (proximal effects), and (c) if parents had a lifetime diagnosis of alcoholism that predated the child’s adolescence (distal effects). We tested these effects in a high-risk sample of 451 adolescents assessed over three waves beginning at ages 11–15 from 1988 to 1991 (53?% male, 71?% non-Hispanic Caucasian, 54?% children of alcoholic parents and 46?% matched controls). Strong and consistent distal effects of parent alcoholism on adolescent’s substance use were found, though no additional risk was associated with proximal effects. Limited time-varying effects were also found. The importance of differentiating the timing effects of parent alcoholism in identifying underlying mechanisms of risk for adolescent substance use is discussed. 相似文献
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Paolo Vineis 《Theoretical medicine and bioethics》1991,12(2):171-181
Epidemiology relies upon a broad interpretation of determinism. This paper discusses analogies with the evolution of the concept of cause in physics, and analyzes the classical nine criteria proposed by Sir Austin Bradford Hill for causal assessment. Such criteria fall into the categories of enumerative induction, eliminative induction, deduction and analogy. All of these four categories are necessary for causal assessment and there is no natural hierarchy among them, although a deductive analysis of the study design is preliminary to any assessment. 相似文献
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Husserl Studies - Normality, for Husserl, is said in many ways. While the most detailed treatments of this technical Husserlian concept are usually found in discussions concerning the constitutive... 相似文献
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医疗侵权诉讼中的因果关系认定是个十分复杂的问题.本文首先阐明了法律上的因果关系概念,并介绍了大陆法系和英美法系对因果关系认定的不同理论,指出在医疗侵权诉讼中两大法系的做法值得我国借鉴. 相似文献
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Celinda Reese-Melancon 《Journal of Adult Development》2013,20(3):151-157
While there is some consensus that prospective memory (PM) declines with age, the reasons for differences in performance across age groups are not fully understood. This experiment examines two factors that are likely to affect the magnitude of observed age group differences: type of PM task and whether participants monitor the task environment for the opportunity to complete the PM task. Younger and older adults were engaged in an ongoing test of short-term memory and were asked to perform one of two different event-based PM tasks. Younger adults performed better than older adults on both focal and nonfocal PM tasks. In addition, younger adults were able to perform both types of tasks equally well, but older adults were more successful on the focal task than on the nonfocal task. Age group differences in self-reported PM monitoring were also evident and were related to performance. These findings and their implications for current theoretical conceptions of PM aging are discussed. 相似文献
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Max Kistler 《Erkenntnis》1998,48(1):1-25
The idea that causation can be reduced to transmission of an amount of some conserved quantity between events is spelled out and defended against important objections. Transmission is understood as a symmetrical relation of copresence in two distinct events. The actual asymmetry of causality has its origin in the asymmetrical character of certain irreversible physical processes and then spreads through the causal net. This conception is compatible with the possibility of backwards causation and with a causal theory of time. Genidentity, the persistence of concrete objects, can be given an explanation in causal terms. The transmission theory is shown to escape difficulties faced by two important alternative theories of causation: Salmon's (1984) Mark Transmission Theory and Dowe's (1992a) Conserved Quantities Theory. 相似文献