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111.
To assign an overall performance rating to a target, a rater must weight and combine various pieces of specific performance information about that target. Policy‐capturing research has demonstrated that individual differences in raters can influence the way raters combine specific performance information. The current study examined information processing from a different perspective by exploring the possibility that target differences may also influence the way raters weight and combine performance information. Raters (N = 146) rated each of six targets on six specific performance dimensions and on overall performance. Sequential moderation analyses indicated that targets influenced the way raters, as a group, combined information across targets. These results lend support to the inference that overall performance ratings may not be comparable across targets, that is, they may not reflect the same underlying performance across targets. 相似文献
112.
Carnelley KB Wortman CB Bolger N Burke CT 《Journal of personality and social psychology》2006,91(3):476-492
Most studies of widowhood have focused on reactions during the first few years postloss. The authors investigated whether widowhood had more enduring effects using a nationally representative U.S. sample. Participants were 768 individuals who had lost their spouse (from a few months to 64 years) prior to data collection. Results indicated that the widowed continued to talk, think, and feel emotions about their lost spouse decades later. Twenty years postloss, the widowed thought about their spouse once every week or 2 and had a conversation about their spouse once a month on average. About 12.6 years postloss, the widowed reported feeling upset between sometimes and rarely when they thought about their spouse. These findings add to an understanding of the time course of grief. 相似文献
113.
McIntyre M Gangestad SW Gray PB Chapman JF Burnham TC O'Rourke MT Thornhill R 《Journal of personality and social psychology》2006,91(4):642-651
Testosterone (T) appears to facilitate what biologists refer to as mating effort--the investment of time and energy into same-sex competition and mate-seeking behavior. Multiple studies show that men who are romantically involved (i.e., are paired) have lower T than single men, which may be due to a facultative adjustment by men of T levels in response to lower demands for mating effort. The authors proceeded on the basis of the idea that men who retain interests in sexual opportunities with women other than a primary partner continue to dedicate more time and energy to mating effort when romantically paired, and so they predicted that the association between relationship status and T depends on men's extrapair sexual interests. Study 1 used the Sociosexual Orientation Inventory to measure extrapair sexual interests, whereas Study 2 used a broader measure to examine this interaction. Both studies found support for it. These results have implications for an understanding of the biosocial regulation of men's behavior in romantic relationships. 相似文献
114.
Kelly OP McIntosh J McIntyre DC Merali Z Anisman H 《Stress (Amsterdam, Netherlands)》2003,6(4):289-295
Rats selectively bred for amygdala excitability, realized by fast or slow kindling epileptogenesis, were previously reported to exhibit differential levels of anxiety. Although the Slow kindling rats generally appeared more anxious in several behavioral tests, under certain test conditions the Fast kindling rats displayed greater anxiety or stressor reactivity. The present investigation confirmed that in a test of anxiety comprising suppression of consumption of a palatable snack in an unfamiliar environment, the Slow kindling rats exhibited greater anxiety and that this effect was attenuated by diazepam. Likewise, the acoustic startle response was greater in the Slow kindling rats. However, the fear-potentiated startle response was more pronounced in Fast kindling rats, particularly among females, irrespective of whether the test parameters elicited moderate or high startle amplitudes. The elevated startle in the Slow rats, and the fear potentiated startle in the Fast rats, were attenuated by diazepam. These data indicate the need to differentiate subtypes of anxiety in animal models, and raise the issue that anxiety elicited by specific environmental triggers may interact with genetically determined trait characteristics. 相似文献
115.
Acetylcholine release was measured simultaneously in the hippocampus and dorsal striatum of rats before and during training on a maze that could be learned using either a hippocampus-dependent spatial strategy or a dorsal striatum-dependent turning strategy. A probe trial administered after rats reached a criterion of 9/10 correct responses revealed that about half of the rats used a spatial strategy and half a turning strategy to solve the task. Acetylcholine release in the hippocampus, as well as the ratio of acetylcholine release in the hippocampus vs. the dorsal striatum, measured either before or during training, predicted these individual differences in strategy selection during learning. These findings suggest that differences in release of acetylcholine across brain areas may provide a neurobiological marker of individual differences in selection of the strategies rats use to solve a learning task. 相似文献
116.
Daily supportive equity in close relationships 总被引:1,自引:0,他引:1
Receiving support in committed relationships has frequently been associated with negative psychological outcomes in the recipient, such as increased distress. The authors hypothesized that these negative effects could be offset by support recipients' reciprocation of support, that is, by creating a sense of supportive equity. To investigate this hypothesis, the authors obtained daily reports of mood and of received and given emotional support from both partners in 85 couples throughout a 4-week period. Reciprocity in support transactions was associated with higher levels of positive mood and lower levels of negative mood. In line with previous research, receiving support without reciprocation was associated with increases in negative mood. Giving support, regardless of receipt, was associated with a decrease in negative mood. 相似文献
117.
Lillian M. Range Mark M. Leach Daniel McIntyre Pamela B. Posey-Deters Michelle S. Marion Stacey H. Kovac James H. Baos Joseph Vigil 《Aggression and violent behavior》1999,4(4):2101
Cultural differences exist as to suicide rates, suicide attempts, suicide attitudes such as acceptability, and appropriate treatment of suicide. Although suicide has been studied cross-nationally to highlight cross-cultural differences, the nuances of suicide among racioethnic groups within the United States have been at times been overlooked. The present article discusses suicide among the four (African American, Hispanic American, Native American, Asian American) most populous minority sociopolitical groups in the United States, and makes culture-specific recommendations for treatment and research. 相似文献
118.
Summary Categorical perception was first demonstrated in studies of speech sounds (Liberman, Harris, Hoffman, & Griffith, 1957). The present work employed visual stimuli to explore categorical responding in relation to the context in which the stimuli were embedded. The target stimulus was a vertical line whose length was varied from 20 to 31 min (approximately) in steps of 1.2 min. Experiment 1 examined the effect of a geometrical context on the subjects' ability to discriminate between pairs of lines. The context improved performance, but produced no evidence of categorical responding. In Experiment 2 a graphemic context depressed performance, but failed to show clear evidence of categorization. By contrast, strong evidence of categorical responding was obtained in Experiment 3, in which the graphemes used in Experiment 2 were embedded in meaningful words. From this pattern of results it is argued that categorical responding is reflective not of relatively peripheral perceptual activity, but of higher-order decision processes. 相似文献
119.
Curtis W. McIntyre Scott L. Blackwell Claire L. Denton 《Journal of abnormal child psychology》1978,6(4):483-492
Denton and McIntyre (1978), using a forced-choice letterrecognition procedure, demonstrated increasing reductions in the spans of apprehension of hyperactive as compared to normal boys when a signal letter was embedded within an increasing number of noise letters. In the present study, the effect of variations in the amount of physical signal-noise similarity and noise redundancy upon the spans of apprehension of hyperactive and normal boys was compared to determine whether noise letters act as more potent distractors for the hyperactive boys. Results indicated the spans of both groups were effected equivalently by variations in signal-noise similarity and noise redundancy. No evidence for a distractibility explanation was obtained. 相似文献
120.
When a target letter form is presented tachistoscopicalfy and embedded in a matrix of irrelevant letter forms (noise), correct detections of the target at a given matrix size can be used to estimate indirectly the amount of information processed from the display, according to a model developed by Estes. In three experiments, the physical similarity between noise and target letters and noise-letter redundancy were varied to determine if the detection mechanism was responsive to these variables. It was found that increases in the physical differences between noise and target letters and increases in redundancy facilitated detection. It is argued that these data support a detection model that assumes parallel rather than serial information processing. 相似文献