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41.
Patterns of facilitation in three lexical decision studies reveal several properties of morphologically complex words that influence processing. In one study, effects of morphological (VOWED-VOW) similarity are contrasted with effects of either semantic (PLEDGE-VOW) or orthographic (VOWEL-VOW) similarity at two prime durations to show the distinctiveness of morphological processing. In a second study, we compare morphologically complex forms that are semantically transparent (CASUALLY-CASUALNESS) with opaque forms (CASUALTY-CASUALNESS) and show that opaque relatives are more similar to VOWEL-VOW type pairs than to transparent relatives. In the third study, we examine facilitation for complex targets (CALCULATION) preceded by prefixed (MISCALCULATE) and suffixed (CALCULATOR) relatives and show that the position of the base morpheme influences processing under cross-modal but not under purely visual presentation conditions. Taken collectively, under comparable presentation conditions, semantic transparency but not base morpheme position constrains morphological processing. 相似文献
42.
Sagrestano LM Feldman P Rini CK Woo G Dunkel-Schetter C 《American journal of community psychology》1999,27(6):869-898
Data from two multi-ethnic prospective studies of African American, Latina, and non-Hispanic White pregnant women were used to examine the influence of contextual factors on social support processes during pregnancy. Multiple types of support (perceived support, received support, support satisfaction, network support) and sources of support (baby's father, family, friends) were assessed. The role of ethnicity in social support was examined after controlling for the contribution of related contextual factors (SES, marital status, age, parity, employment) to these processes. The impact of ethnicity and related contextual factors differed across sources of social support. Ethnic differences in support from family and friends, but not from the baby's father, emerged. However, marital status was a consistent predictor of support from the baby's father, and SES was a consistent predictor of support from friends. Overall, the findings of two studies suggest that although ethnicity is associated with support from friends and family, other contextual factors, such as marital status and SES, influence support processes during pregnancy. 相似文献
43.
Congenital adrenal hyperplasia (CAH) due to steroid 21-hydroxylase deficiency is a common autosomal recessive disorder due to mutations in the CYP21A2 gene. Since genetic counselors play a crucial role in educating families about inherited disorders, they need to have thorough knowledge regarding the pathophysiology of CAH especially the effects on the fetus, the complex genetics of this disorder, and the controversies surrounding experimental prenatal dexamethasone treatment. Affected female fetuses may have varying degree of virilization of the external genitalia. Starting in the 1980's, supraphysiologic glucocorticoid treatment was used to decrease the virilization of the external genitalia of affected female fetuses. However, recent clinical observations, animal studies and greater awareness of the details of human fetal adrenal physiology raise concerns regarding the safety of this prenatal treatment. We review the pathophysiology of CAH, the safety and ethical considerations of prenatal dexamethasone treatment and the views of multiple medical societies that conclude that this experimental therapy should only be done in prospective trials approved by ethical review boards. 相似文献
44.
Grégoire S Rivalan M Le Moine C Dellu-Hagedorn F 《Neurobiology of learning and memory》2012,97(2):202-212
Concomitant deficits in working memory and behavioral inhibition in several psychiatric disorders like attention-deficit/hyperactivity disorder, addiction or mania, suggest that common brain mechanisms may underlie their etiologies. Based on the theoretical assumption that a continuum exists between health and mental disorders, we explored the relationship between working memory and inhibition in healthy individuals, through spontaneous inter individual differences in behavior, and tested the hypothesis of a functional link through the fronto-striatal dopaminergic system. Rats were classified into three groups, showing good, intermediate and poor working memory and were compared for their inhibitory abilities. These two functions were simultaneously modulated by a dose-effect of d-amphetamine and in situ hybridization was used to quantify dopaminergic receptor (RD1) mRNAs in prefrontal cortex and striatal areas. A functional relationship between working memory and inhibition abilities was revealed. Both functions were similarly modulated by d-amphetamine according to an inverted-U shaped relationship and depending on initial individual performances. D-amphetamine selectively improved working memory and inhibition of poor and intermediate performers at low doses whereas it impaired both processes in good performers at a higher dose. D1 receptors were less expressed in prelimbic, infralimbic and anterior cingulate cortices of good compared to intermediate and poor performers, whereas no difference was observed between groups in striatal areas. The synergy of working memory and inhibitory abilities, observed in both healthy and psychiatric populations, may originate from endogenous variability in dopaminergic prefrontal cortex activity. Such findings confirm the validity of a dimensional approach, based on the concept of continuity between health and mental disorders for identifying endophenotypes of mental disorders. 相似文献
45.
Jackie A. Nelson Marion O'Brien Susan D. Calkins Esther M. Leerkes Stuart Marcovitch A. Nayena Blankson 《Infant and child development》2012,21(3):267-286
Maternal expressive styles, based on a combination of positive and negative expressive patterns, were identified at two points in time and related to multiple aspects of preschool children's emotional development. Mother–child pairs from 260 families participated when the children were 3 years old, and 240 participated again at aged 4 years. Expressive styles were identified at age 3 using cluster analysis, replicated at age 4 and examined in relation to children's emotional understanding, expressiveness and regulation. Three expressive styles were identified: high positive/low negative, very low positive/average negative and average positive/very high negative. Cluster membership was stable in 63% of families from age 3 to 4 years; no systematic patterns of change were evident in the remaining families. Expressive style was related to aspects of children's emotional expression at 3 years and to emotion expression and regulation at 4 years. Children's expressiveness and regulation at age 3 were also related to changes in mothers' expressive styles over 1 year. Identifying mothers' expressive styles provides a unique way to understand the potential role of the emotional climates in which preschool‐aged children learn to express and regulate their own emotions. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
46.
Marion P 《The International journal of psycho-analysis》2012,93(2):317-340
Of the various forms that the matter of time assumes in analysis, Nachträglichkeit represents Freud’s first intuition on the subject. The focus of this article is directed toward the specific temporal dimension that the concept of Nachträglichkeit expresses, and how that dimension, which overturns linear time, is expressed in clinical work. The concept of Nachträglichkeit is approached from a theoretical point of view, tracing back the role and development that this notion has had in psychoanalytic Freudian and post‐Freudian thinking. The goal of this article is to demonstrate how Nachträglichkeit represents the unique temporal movement of the analytic session and the characteristic positioning of the mind of the analyst at work. Three clinical examples are presented. The analytic scene is formulated as occurring in two times, and through the working through that takes place, patients can recover the enigmatic ‘remainder’, which is consequently traumatic and which has compulsively accompanied them through the various times of their existence. Nachträglichkeit, as a non‐linear temporality, introduces a unique dimension into the clinical work that influences listening to and interpretation of the material. The recognition of that (trauma, infantile sexuality, non‐linear temporality) has consequences for the analyst’s way of working in session and on the interpretation of clinical material, as I will try to show through my theoretical exposition and clinical examples. 相似文献
47.
Researchers continue to debate the role of self-esteem in aggression, but research has shown a consistent association between narcissism and aggression in adults and adolescents [e.g., Barry et al., 2007; Bushman and Baumeister, 1998; Stucke, 2007]. The primary aim of the current study was to examine whether locus of control (LOC) moderated the relation between self-perception variables (i.e., self-esteem and narcissism) and aggression in adolescents. Participants were 174 youth (145 males, 26 females) between the ages of 16 and 19 who were enrolled in a voluntary residential program for youth who have dropped out of school. The results showed that LOC moderated the association between self-esteem and aggression such that low self-esteem was associated with higher levels of aggression for individuals with an external LOC. Contrary to expectations, LOC failed to moderate the narcissism-aggression relation. The implications of this study for understanding how self-perception is related to adolescent aggression are discussed. 相似文献
48.
Schmitz WM Allen MH Feldman BN Gutin NJ Jahn DR Kleespies PM Quinnett P Simpson S 《Suicide & life-threatening behavior》2012,42(3):292-304
There are twice as many suicides as homicides in the United States, and the suicide rate is rising. Suicides increased 12% between 1999 and 2009. Mental health professionals often treat suicidal patients, and suicide occurs even among patients who are seeking treatment or are currently in treatment. Despite these facts, training of most mental health professionals in the assessment and management of suicidal patients is surprisingly limited. The extant literature regarding the frequency with which mental health professionals encounter suicidal patients is reviewed, as is the prevalence of training in suicide risk assessment and management. Most importantly, six recommendations are made to address the longstanding insufficient training within the mental health professions regarding the assessment and management of suicidal patients. 相似文献
49.
The present article describes the development and initial validation of the Inventory of Microaggressions Against Black Individuals (IMABI) using a sample of 385 undergraduates who self-identified as Black or African American. The IMABI is a 14-item, unidimensional measure of racial microaggressions that captures both microinsults and microinvalidations. The present findings support the IMABI as a reliable and valid measure of microaggressions that was associated with general distress and perceived stress. Importantly, the association between the IMABI and psychological adjustment persisted even when social desirability and another measure of race-related stress were included in the analyses. Discussion focuses on the potential implications of the IMABI for understanding the daily experiences and psychological adjustment of Black individuals. 相似文献
50.
What You Feel Influences What You See: The Role of Affective Feelings in Resolving Binocular Rivalry
It seems obvious that what you see influences what you feel, but what if the opposite were also true? What if how you feel can shape your visual experience? In this experiment, we demonstrate that the affective state of a perceiver influences the contents of visual awareness. Participants received positive, negative, and neutral affect inductions and then completed a series of binocular rivalry trials in which a face (smiling, scowling, or neutral) was presented to one eye and a house to the other. The percepts “competed” for dominance in visual consciousness. We found, as predicted, that all faces (smiling, scowling, and neutral) were dominant for longer when perceivers experienced unpleasant affect compared to when they were in a neutral state (a social vigilance effect), although scowling faces increased their dominance when perceivers felt unpleasant (a relative negative congruence effect). Relatively speaking, smiling faces increased their dominance more when perceivers were experiencing pleasant affect (a positive congruence effect). These findings illustrate that the affective state of a perceiver serves as a context that influences the contents of consciousness. 相似文献