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201.
The purpose of this paper is to review major statistical and psychometric issues impacting the study of psychophysiological reactivity and discuss their implications for applied developmental researchers. We first cover traditional approaches such as the observed difference score (DS) and the observed residual score (RS), including a review of classic and recent research on their reliability and validity from two related bodies of work: the measurement of change and the Law of Initial Values. Second, we review several types of latent variable modeling in this context: latent difference score (LDS) models, latent residual score (LRS) models, latent state-trait (LST) models, and latent growth curve (LGC) models. Finally, we provide broad guidelines for applied researchers broken down by key stages of a psychophysiological project: study planning, data analysis, and reporting of results. Our recommendations highlight the need for (1) increased attention to the ubiquitous nature of measurement error in observed variables and the importance of employing latent variable models when possible, and (2) increased specification of theories relating to the construct of reactivity, especially in regards to the distinction between baseline arousal and change over time in broader systems of variables.  相似文献   
202.
Recent findings show that people with dyslexia have an impairment in serial-order memory. Based on these findings, the present study aimed to test the hypothesis that people with dyslexia have difficulties dealing with proactive interference (PI) in recognition memory. A group of 25 adults with dyslexia and a group of matched controls were subjected to a 2-back recognition task, which required participants to indicate whether an item (mis)matched the item that had been presented 2 trials before. PI was elicited using lure trials in which the item matched the item in the 3-back position instead of the targeted 2-back position. Our results demonstrate that the introduction of lure trials affected 2-back recognition performance more severely in the dyslexic group than in the control group, suggesting greater difficulty in resisting PI in dyslexia.  相似文献   
203.
This study explores the personal meaning of head and neck cancer for individuals, with particular reference to the impact on the self. It employs interpretative phenomenological and repertory grid analysis with 10 people, all of whom have undergone surgical treatment for head and ceck cancer. Four themes emerged: namely, destruction of self, altered relations with the body, disenfranchised self, and conservation of self. Repertory grid analysis validated and enriched understanding of these findings. Participants described how head and neck cancer inflicted a fundamental attack on their sense of self. Nonetheless, participants were dynamic in their self-management and detailed an active process to retain a positive sense of self.  相似文献   
204.
Abstract

Certain contemporary accounts of object and face recognition use connectionist networks with local representations. This paper describes and extends one such account: an interactive activation and competition (IAC) model of face recognition. In contrast to many networks with distributed representations, IAC models do not incorporate a learning mechanism. This limits their use in psychological modelling. This paper describes how a learning mechanism can be built into an IAC model. The mechanism automatically learns new representations and appears to have many of the desirable properties traditionally associated with distributed networks. Some simulations that produce results consistent with our knowledge of human face learning are reported. Finally, the relation between this work and current theories of visual object recognition is discussed.  相似文献   
205.
In what we term the orientation effect, faster spatial responses are made to the corresponding task irrelevant orientation of an object. We ask how this effect relates to object affordances, how attention may be involved, and how the effect relates to the better understood Simon effect. Two separate stimulus-response compatibility effects (an orientation effect and a Simon effect) were observed when spatial responses were made to photographs of objects whose orientation and location had been simultaneously manipulated. When attentional demands were high these separate effects were found using hand responses and foot responses, suggesting an abstract rather than specific coding of object affordances. However, when attentional demands were low only the Simon effect was observed, suggesting that, in order to obtain the orientation effect, objects must be represented at the level of an object.  相似文献   
206.
Previous research has demonstrated an interaction between eye gaze and selected facial emotional expressions, whereby the perception of anger and happiness is impaired when the eyes are horizontally averted within a face, but the perception of fear and sadness is enhanced under the same conditions. The current study reexamined these claims over six experiments. In the first three experiments, the categorization of happy and sad expressions (Experiments 1 and 2) and angry and fearful expressions (Experiment 3) was impaired when eye gaze was averted, in comparison to direct gaze conditions. Experiment 4 replicated these findings in a rating task, which combined all four expressions within the same design. Experiments 5 and 6 then showed that previous findings, that the perception of selected expressions is enhanced under averted gaze, are stimulus and task-bound. The results are discussed in relation to research on facial expression processing and visual attention.  相似文献   
207.
208.
The study reported herein tested the following hypothesis: Religious fundamentalism can serve a protective function against existential anxiety, such that the need to engage in secular worldview defense when mortality is made salient is reduced for high fundamentalists. The results showed that high fundamentalists engaged in less worldview defense after thinking about their own death versus a control topic. Low fundamentalists, however, engaged in more worldview defense after thinking about their deaths versus a control topic. Exploratory analyses revealed that high fundamentalists' writings about death had a more positive emotional tone and that reactions to the death salience manipulation moderated the impact of fundamentalism on worldview defense. Fundamentalists who saw their deaths in terms of peace and acceptance appeared most protected against terror management concerns.  相似文献   
209.
210.
Prior work has suggested that inter-parental conflict likely plays an etiological role in child behavior problems. However, family-level measurement of inter-parental conflict in most traditional child twin studies has made it difficult to tease apart the specific causal mechanisms underlying this association. The Children’s Perception of Inter-parental Conflict scale (CPIC) provides a child-specific measurement tool for examining these questions, as its subscales tap multiple dimensions of conflict assessed from the child’s (rather than the parent’s) perspective. The current study examined (1) the degree of genetic and environmental influence on each of the CPIC subscales, and (2) etiological contributions to the covariation between the CPIC scales and parental reports of child behavioral problems. The CPIC was completed by 1,200 child twins (aged 6–11 years) from the Michigan State University Twin Registry (MSUTR). Parents completed the Child Behavior Checklist (CBCL) to assess child internalizing and externalizing behavior problems. Multivariate models were examined to evaluate the relative contributions of genetic and environmental factors to both the CPIC scales and to their overlap with child behavioral outcomes. Modeling results indicated no significant moderation of sex or age. Significant environmental overlap emerged between the CPIC conflict properties scale and child internalizing and externalizing problems. By contrast, significant genetic correlations emerged between the CPIC self-blame scale and externalizing problems as well as between the CPIC threat scale and internalizing problems. Overall, findings suggest that the subscales of the CPIC are somewhat etiologically diverse and may provide a useful tool for future investigations of possible gene-environment interplay.  相似文献   
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