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271.
This study compares fertility and menstrual characteristics and contraceptive practices of white, black, and Southeast Asian refugee adolescents participating in the Minneapolis Health Department's Maternal and Infant Care Program between 1980 and 1982. Mean ages were similar among all racial groups; however, half the Hmong adolescents had a live birth as compared to less than 25% of the other racial groups. More than 75% of the Hmong and other Southeast Asian adolescents were married as compared to 11% of the whites and 8% of the blacks. Menarche was significantly later (2 years) for Hmong and other Southeast Asians, and the interval between menarche and first pregnancy was significantly shorter for the Hmong. While more than half of the whites and blacks previously used contraception, 14% of the Hmong and 29% of the other Southeast Asians had used contraception. Oral contraceptives were the most frequently used method for whites, blacks, and Southeast Asians; the Hmong were equally likely to choose oral contraceptives or barrier methods. The Hmong were less likely to choose contraception postpartum than were the other groups. 相似文献
272.
Jesse A. Harris Katy Carlson 《Quarterly journal of experimental psychology (2006)》2016,69(7):1278-1301
The let alone construction (John can't run a mile, let alone a marathon) differs from standard coordination structures (with and or but) by requiring ellipsis of the second conjunct—for example, a marathon is the remnant of an elided clause [ John run a marathon]. In support of an ellipsis account, a corpus study of British and American English finds that let alone exhibits a Locality bias, as the second conjunct preferentially contrasts with the nearest lexical item of the same syntactic type. Two self-paced reading studies show that the Locality bias is active during online processing, but must be reconciled with indicators of semantic contrast and discourse information. Further, a sentence-rating study shows that the Locality bias interacts with a Finality bias that favours placing the let alone phrase at the end of a clause, which sometimes necessitates a nonlocal contrast. Together, the results show how a general bias in ellipsis for local contrasts is affected by discourse demands, such as the need for scalar contrast imposed by let alone, thereby offering a window into how possibly divergent syntactic and discourse constraints impact sentence processing. 相似文献
273.
Matthew J. Crossley Erick J. Paul Jessica L. Roeder F. Gregory Ashby 《Psychonomic bulletin & review》2016,23(1):213-222
When humans simultaneously execute multiple tasks, performance on individual tasks suffers. Complementing existing theories, this article poses a novel question to investigate interactions between memory systems supporting multi-tasking performance: When a primary and dual task both recruit declarative learning and memory systems, does simultaneous performance of both tasks impair primary task performance because learning in the declarative system is reduced, or because control of the primary task is passed to slower procedural systems? To address this question, participants were trained on either a perceptual categorization task believed to rely on procedural learning or one of three different categorization tasks believed to rely on declarative learning. Task performance was examined with and without a simultaneous dual task thought to recruit working memory and executive attention. To test whether the categories were learned procedurally or declaratively, the response keys were switched after a learning criterion had been reached. Large impairments in performance after switching the response keys are taken to indicate procedural learning, and small impairments are taken to indicate declarative learning. Our results suggest that the declarative memory categorization tasks (regardless of task difficulty) were learned by declarative systems, regardless of whether they were learned under dual-task conditions. 相似文献
274.
Humans can detect target colour pictures of scenes depicting concepts like picnic or harbour in sequences of six or 12 pictures presented as briefly as 13?ms, even when the target is named after the sequence. Such rapid detection suggests that feedforward processing alone enabled detection without recurrent cortical feedback. There is debate about whether coarse, global, low spatial frequencies (LSFs) provide predictive information to high cortical levels through the rapid magnocellular (M) projection of the visual path, enabling top-down prediction of possible object identities. To test the “Fast M” hypothesis, we compared detection of a named target across five stimulus conditions: unaltered colour, blurred colour, greyscale, thresholded monochrome, and LSF pictures. The pictures were presented for 13–80?ms in six-picture rapid serial visual presentation (RSVP) sequences. Blurred, monochrome, and LSF pictures were detected less accurately than normal colour or greyscale pictures. When the target was named before the sequence, all picture types except LSF resulted in above-chance detection at all durations. Crucially, when the name was given only after the sequence, performance dropped and the monochrome and LSF pictures (but not the blurred pictures) were at or near chance. Thus, without advance information, monochrome and LSF pictures were rarely understood. The results offer only limited support for the Fast M hypothesis, suggesting instead that feedforward processing is able to activate conceptual representations without complementary reentrant processing. 相似文献
275.
Joshua M. Carlson Robert D. Torrence Michelle R. Vander Hyde 《Motivation and emotion》2016,40(3):498-505
Fearful facial expressions are important social indicators of environmental threat. Among the various features of a fearful face, the eyes appear to be particularly important for recognizing and responding to these social cues. One way in which fearful faces facilitate observers’ behavior is by automatically capturing attention. This is true for both consciously and nonconsciously processed fearful faces. Recent research suggests that consciously processed fearful eyes alone are sufficient to capture observers’ attention. However, it is unknown as to whether or not nonconsciously processed, backward masked, fearful eyes are sufficient to facilitate spatial attention. To test this possibility, two dot-probe experiments with masked fearful eye stimuli were performed. In Experiment 1, we found that, relative to scrambled eyes, masked fearful eyes facilitate attentional orienting and delay attentional disengagement. In Experiment 2, we replicated this effect when comparing backward masked fearful to neutral eyes. Thus, the data suggest that nonconscious fearful eyes facilitate spatial attention through facilitated orienting and delayed disengagement. 相似文献
276.
Attitudes Toward Professional Psychological Help Seeking in South Asian Students: Role of Stigma and Gender
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Prerna G. Arora Kristina Metz Cindy I. Carlson 《Journal of multicultural counseling and development》2016,44(4):263-284
This study examined (a) the roles of perceived and personal stigma on attitudes toward professional psychological help seeking and (b) the effects of these constructs across gender in South Asians. Personal stigma and being male was negatively associated with attitudes toward professional psychological help seeking; no difference in the association between personal and perceived stigma and attitudes across genders was found. These findings have implications for the engagement of South Asians in mental health services in the United States. Este estudio examinó (a) los roles de estigmas percibidos y personales en las actitudes hacia la búsqueda de ayuda psicológica profesional y (b) los efectos de estos constructos en indiviuos sudasiáticos según su sexo. El estigma personal y la identidad masculina se asociaron negativamente con las actitudes hacia la búsqueda de ayuda psicológica profesional; no se halló diferencia en la asociación entre estigmas personales y percibidos y las actitudes de los distintos sexos. Estos hallazgos tienen implicaciones para la participación de los individuos sudasiáticos en los servicios de salud mental en Estados Unidos. 相似文献
277.
John G. Carlson Rosanne C. Harrigan Zoe C. M. Seeley 《International journal of stress management》1997,4(3):145-169
A cognitive-behavioral model for conceptualizing wellness is proposed consisting of situational/antecedent variables, person
variables, and consequence variables which, taken individually or together, may serve to describe and explain wellness behavior.
The model also is interactional in the sense that different categories of variables or factors within a category may impact
on each other in a multidirectional fashion. A selective review of research relating to each variable is provided to demonstrate
the need for such a multidimensional conceptual scheme for wellness. 相似文献
278.
E. M. Eisenstein A. D. Carlson J. T. Harris 《Integrative psychological & behavioral science》1997,32(3):265-271
The phenomenon known as “learned helplessness” (LH) is seen broadly across the animal kingdom. Some of the basic characteristics of this behavior are: failure to escape shock when it is possible to do so following non-escapable shock; reversion to non-escape behavior even after successful escape; if the animal is given escape/avoidance training prior to being given inescapable shocks, the latter will not interfere with its ability to later show normal escape/avoidance behavior (generally described as an immunization effect); following inescapable shock training the animals often become “passive and still” when confronted with an escapable shock. These behaviors are seen in intact mammals, lower vertebrates, and invertebrates. In fact, the basic characteristics are even seen in a spinal rat and, with the exception of one characteristic not yet examined, in an isolated thoracic ganglion of an insect. The brain is evidently not essential either in mammals or in invertebrates for demonstrating this behavior. Not only can an insect ganglion show the behavioral characteristics of LH, but the neural information underlying the phenomenon of LH can be shown to transfer from one ganglion innervating one pair of legs to another ganglion innervating a different pair of legs. Thus, how CNS information underlying LH is coded and transferred from one site to another within the CNS can be examined in such a system. The LH model has provided valuable insights into the physiology of depression. This model suggests that human depression is caused by one’s lack of control over traumatic events. It is supported by a number of parallels between depression and LH behavior. Tricyclic antidepressants, MAO inhibitors, and ECT, which are effective in treating depression, also can prevent and reverse LH in mammals. It would be important to find out if they are also effective in invertebrate models. The fact that the characteristics of the behavior called LH are seen in invertebrates such as slugs, cockroaches, and locusts provokes other intriguing questions about the presence of cognition at these phylogenetic levels, as well as what animal or preparation constitutes an appropriate model for human depression. 相似文献
279.
Philosophical Studies - 相似文献
280.
This study evaluated effects of a worksite stress management/health promotion program with primarily minority blue-collar employees showing a number of high-risk health behaviors. In a biopsychosocial approach, participants were assessed with a standardized health risk appraisal that included physical and behavioral variables, plus measures of self-control, health attitudes/satisfaction, and other factors. A controlled group design was employed with pretreatment, treatment, posttreatment, and three-month follow-up. Participants were randomly assigned to a wait-listed control group (n = 26) and a health promotion intervention group (n = 24). The latter received a multimodal intervention including stress management training, educational workshops and counseling, and a self-directed behavior change program. Following posttreatment assessment, the control subjects were given treatment and their data were then added to that of the initial treatment group to comprise a total group of treatment finishers (n = 33). The results revealed a number of significant differences between the two groups at posttreatment and/or for the treatment finishers across time (pretreatment vs. posttreatment and/or follow-up), including certain of the physical and behavioral measures, self-efficacy, and some health attitudes, but no effects for job-related measures, such as absenteeism and job satisfaction. 相似文献