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231.
232.
The serial reaction time task (SRT) is used to assess implicit sequence learning. Neuroimaging studies implicate parietal involvement; however, the necessity of this area is unclear. We tested six unilateral right parietal patients and compared their performance to matched controls. Both groups showed similar levels of learning and explicit awareness. Two patients with the largest lesions extending into either frontal or cerebellar regions showed no learning. These data suggest that implicit sequence learning can occur despite damage to the right parietal lobe. 相似文献
233.
Ingrid Zakrisson 《Sex roles》2008,59(3-4):254-263
Most studies of gender differences in social dominance orientation (SDO) have investigated settings more or less hierarchy-enhancing. The aim of this study was to explore gender differences in SDO (1) within social structures varying in equality-enhancement, i.e., communities differing in political equality between men and women, and (2) settings where equality was maximized and held constant, i.e., democratic, voluntary associations, but varying in gender composition, using survey data from a random sample of 831 Swedish adults (median age?=?47 years). There was a significant interaction effect between gender and membership in voluntary associations dominated by women, with men and women displaying equally low levels of SDO. In all other instances the main effect of gender remained statistically significant. 相似文献
234.
Nijholt IM Ostroveanu A Scheper WA Penke B Luiten PG Van der Zee EA Eisel UL 《Neurobiology of learning and memory》2008,90(1):223-229
Both genetic and pharmacological studies demonstrated that contextual fear conditioning is critically regulated by cyclic AMP-dependent protein kinase (PKA). Since PKA is a broad range protein kinase, a mechanism for confining its activity is required. It has been shown that intracellular spatial compartmentalization of PKA signaling is mediated by A-kinase anchoring proteins (AKAPs). Here, we investigated the role of PKA anchoring to AKAPs in different stages of the memory process (acquisition, consolidation, retrieval and extinction) using contextual fear conditioning, a hippocampus-dependent learning task. Mice were injected intracerebroventricularly or intrahippocampally with the membrane permeable PKA anchoring disrupting peptides St-Ht31 or St-superAKAP-IS at different time points during the memory process. Blocking PKA anchoring to AKAPs resulted in an impairment of fear memory consolidation. Moreover, disrupted PKA anchoring promoted contextual fear extinction in the mouse hippocampus. We conclude that the temporal and spatial compartmentalization of hippocampal PKA signaling pathways, as achieved by anchoring of PKA to AKAPs, is specifically instrumental in long-term contextual fear memory consolidation and extinction, but not in acquisition and retrieval. 相似文献
235.
This study explored the memory conformity effect in children. Younger (6–7 years; n = 60) and older (11–12 years; n = 62) children watched a video individually (individual witness condition) or in dyads (co‐witness condition). The dyads believed that they were viewing the same video as the other member of the pair while in fact the saw different versions. Next, children in the individual witness condition answered questions, whereas children in the co‐witness condition discussed the event on the video with each other. Finally, all children completed an individual free and cued recall task. In the co‐witness condition, more than 60% of the children recalled at least one detail from the alternative video, whereas over 23% of the children in the individual witness condition reported such a detail. Moreover, in free recall—but not in cued recall—the memory conformity effect was stronger for older than for younger children. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
236.
According to cognitive theory, an important factor in borderline personality disorder (BPD) is hypervigilance. The aim of the present study was to test whether BPD patients show schema-related biases, and to explore relations with childhood trauma, schemas, and BPD symptoms. Sixteen BPD patients were compared with 18 patients with a cluster C personality disorder, 16 patients with an axis I disorder, and 16 normal controls. An emotional Stroop task was applied with schema-related and unrelated, negative and positive, supra- and subliminal person-related stimuli. BPD patients showed hypervigilance for both negative and positive cues, but were specifically biased towards schema-related negative cues. Predictors were BPD schemas, childhood sexual traumas, and BPD anxiety symptoms. Both BPD and axis I disorder patients showed a trend for a bias for negative schema-related subliminal stimuli. More attention to hypervigilance in BPD is recommended for clinical practice. 相似文献
237.
Benenson JF Markovits H Muller I Challen A Carder HP 《Infant behavior & development》2007,30(4):587-595
Social organization of a species influences myriad facets of individuals’ behavior. Much research indicates that human social organization consists of males in large groups and females in smaller groups or interacting with individuals. This study analyzed the initial factors that produce greater preferences for groups by human male versus female infants. To this end, using a looking preference paradigm, fifty-nine 6–8-month-old infants viewed individual versus group images of actual children. On the basis of several controls, results demonstrated that male more than female infants are attracted to the complex level of stimulation provided by groups. Discussion centers on further identifying male versus female patterns of group interaction from a perceptual and cognitive standpoint. 相似文献
238.
Scharlau I 《Psychological research》2007,71(6):678-686
The present paper reviews recent research on perceptual latency priming (PLP). PLP is the relative latency advantage-earlier perception-of a visual stimulus that is preceded by another, masked stimulus at its location. The first stimulus attracts attention which accelerates perception of the second stimulus. This facilitation arises even if the first stimulus is visually backward-masked by the second one. The paper summarises research on temporal and spatial properties of PLP and the question whether intentions mediate shifts of attention to external events. Possible sources of PLP besides visuo-spatial attention are discussed. Finally, I give a review of feedforward and reentrant models of PLP and compare them to the empirical evidence. 相似文献
239.
The sexualization of the breast may lead women who internalize the sexual objectification of their bodies to have more negative
attitudes toward breastfeeding. The purpose of the present study was to examine self-objectification in relation to young
women’s attitudes toward and concerns about breastfeeding. Two hundred and seventy-five female undergraduates completed a
survey with questions that assessed their plans for infant feeding, attitudes toward breastfeeding, concerns about breastfeeding,
and self-objectification. Women who scored higher on measures of self-objectification were more likely to view public breastfeeding
as indecent and to be concerned that breastfeeding would be embarrassing and would negatively impact their bodies and sexuality.
Self-objectification was not related to general attitudes toward breastfeeding or to young women’s future infant feeding plans.
Implications for theory and future research are discussed.
An earlier version of this study was presented at the annual meeting of the American Psychological Association, Washington,
DC (August, 2005). 相似文献
240.