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101.
Journal of Philosophical Logic - 相似文献
102.
A problem of circularity emerges in any attempt to index depth by retention alone. In the present study, reaction time (RT), and heart-rate response were used to index the three qualitatively distinct levels of physical, phonemic, and semantic processing. An additional objective was to distinguish between the three levels under incidental vs intentional learning conditions. Subjects were 46 male undergraduates who were given 30 trials. A trial consisted of the presentation of an orienting question and an imperative word-stimulus separated by a 6-sec. interval. There were three types of questions in order to induce processing to one of the three target levels. The results indicated that recall as well as heart-rate acceleration distinguished between two (physical vs phonemic and semantic) rather than three levels of processing in the incidental condition. Heart-rate change differentiated between incidental and intentional, the intentional condition showing a smaller change. Semantic and phonemic RTs were faster than physical RT, but there were no differences between semantic and phonemic RTs. Intentional recall was superior to incidental recall. It is suggested that psychophysiological indices can provide independent evidence for 'levels of processing.' 相似文献
103.
Word-fragment completion is a frequently used test in implicit memory research. In this test priming is the relevant variable. Priming is obtained by subtracting the proportion of nonstudied word fragments correctly completed (called "completion difficulty baseline") from the studied word fragments correctly completed. Since completion difficulty can spuriously vary greatly between experimental conditions, its effect on magnitude of priming is studied. Normative frequency of occurrence of target words was considered because their influence over performance is known. In an experiment using a word-fragment completion test, participants' completion of fragments at three levels of completion difficulty and two levels of frequency was tested. Analysis showed that completion difficulty had a significant effect on global priming. The priming magnitude was higher for Difficult and Moderately Difficult fragments than for Easy ones. An interaction between fragment difficulty and normative word frequency was observed. When the fragments were easy to complete, the expected effect of higher priming for low-frequency words than for high-frequency words was not observed. 相似文献
104.
Tina R. Norton Anita Gupta Mary Ann Parris Stephens Lynn M. Martire Aloen L. Townsend 《Sex roles》2005,52(5-6):325-335
Although research suggests that stress and rewards experienced in a social role are associated with changes in the centrality (or personal importance) of that role over time, little attention has been given to the mechanisms that account for this relationship. This study was conducted to examine change in role mastery as a mediator in the relationship between changes in role experiences (stress and rewards) and changes in centrality among 195 women who simultaneously occupied the roles of parent care provider, mother, wife, and employee. Regression analyses indicated that increases in parent care, mother, and employee stress eroded mastery in those roles. In addition, increases in rewards were associated with a bolstered sense of mastery in each of the four roles. Mastery was found to be a mediating mechanism in the relationship between stress/rewards and centrality in one of the four roles examined, the employee role. However, changes in womens perceptions of mastery were unrelated to the extent to which women changed the importance of their three family roles. These findings extend prior research by demonstrating that mastery is a mechanism through which stress and rewards are associated with centrality in the employee role. 相似文献
105.
Gupta P 《Memory (Hove, England)》2005,13(3-4):318-324
An increasing body of evidence suggests that nonword repetition is related to immediate serial memory (e.g., Baddeley, Gathercole, & Papagno, 1998; Gathercole & Baddeley, 1993). One possible account of this relationship is that a nonword is processed like a list when it is first encountered. If this is the case, it should be possible to detect serial position effects in repetition of single nonwords. Three experiments tested this prediction. Experiment 1 examined whether there would be syllable serial position primacy and recency effects in repetition of polysyllabic nonwords, and obtained both primacy and recency effects. Experiments 2 and 3 showed that these effects were not due to the controlled duration of the nonwords or the requirements of concurrent articulation or the procedure by which nonwords were created. 相似文献
106.
Hsing-Fang Hsieh Ritesh Mistry Michael J. Kleinsasser Namrata Puntambekar Prakash C. Gupta Trivellore Raghunathan William McCarthy David Córdova Gaurab Maharjan Maruti B. Desai Sameer Narake Mangesh S. Pednekar 《Family process》2023,62(1):287-301
Research on family functioning within given cultural contexts is needed. This study aims to describe salient dimensions of family functioning in two urban contexts in India and to examine differences in family functioning by sociodemographic groups. We measured differences in family functioning using cross-sectional survey questionnaire data collected from 13 to 15-year-old adolescents and one of their parents/primary caregivers in Mumbai (n = 843) and Kolkata (n = 913) during 2019–2020. We drew a multi-stage sample representative of neighborhoods and households in both cities. We assessed a multi-dimensional family functioning latent factor that included parent-reported measures (parent–adolescent communication, family cohesion, and parent monitoring of peers) and adolescent-reported measures (parent support, family cohesion, and parent supervision). Our results support an overall measure of family functioning manifested by multiple dimensions for parent- and adolescent-reported data. Families with male adolescents had worse adolescent-reported family functioning in Mumbai and parent-reported family functioning in Kolkata. Higher socioeconomic status was associated with better parent-reported family functioning in both cities and better adolescent-reported family functioning in Kolkata. Muslim religious identification in Kolkata and the Hindi native language in both cities were associated with better adolescent-reported family functioning. Our findings indicate heterogeneity in family functioning across demographic and social-cultural groups within the two urban contexts of India. This study may inform the development of culturally congruent prevention interventions for families with adolescents in India. 相似文献
107.
Ethnic identity is a part of positive self-concept that consciously anchors an individual to a particular ethnic group. Central to this identity is a sense of belonging, as well as a commitment to the group's values, beliefs, behaviors, conventions, and customs. This study focuses on the Asian Indian community in the U.S. to investigate their concerns with the continuity of ethnic identity via maintenance of traditional culture. Intergenerational synchrony in two specific values, attitudes toward women and dating, were examined as indicators of successful transmission of culture and identity. Forty-sixeducated, middle class Indian immigrant families, the majority of whom were foreign born and Hindus,participated in this study by responding to three questionnaires: Attitude Toward Women Scale, Dating Scale, and IPAT Anxiety Scale. Although the results show a strong similarity between parents and children on target attitudes, distinct intergenerational and gender asymmetries emerged. The conscious attempt to preserve certain critical attitudes, values, and behaviors characteristic of the group was labeled “judicious biculturalism,” an expression of active involvement on the immigrants' part to control the course of their own acculturation. The study has implications for women's status within the Asian Indian community. 相似文献
108.
109.
Brain mechanisms used to control nonemotional aspects of cognition may be distinct from those regulating responses to emotional
stimuli, with activity of the latter being detrimental to the former. Previous studies have shown that suppression of irrelevant
emotional stimuli produces a largely right-lateralized pattern of frontal brain activation, thus predicting that emotional
stimuli may invoke temporary, lateralized costs to performance on nonemotional cognitive tasks. To test this, we briefly (85 ms)
presented a central, irrelevant, expressive (angry, happy, sad, or fearful) or neutral face 100 ms prior to a letter search
task. The presentation of emotional versus neutral faces slowed subsequent search for targets appearing in the left, but not
the right, hemifield, supporting the notion of a right-lateralized, emotional response mechanism that competes for control
with nonemotional cognitive processes. Presentation of neutral, scrambled, or inverted neutral faces produced no such laterality
effects on visual search response times. 相似文献
110.
Intrinsic persistent spiking mechanisms in medial entorhinal cortex (mEC) neurons may play a role in active maintenance of working memory. However, electrophysiological studies of rat mEC units have primarily focused on spatial modulation. We sought evidence of differential spike rates in the mEC in rats trained on a T-maze, cued spatial delayed response task. Animals begin at the base of the T-maze where a 1-sec white noise and visual light cue are presented on the left or right side of the maze. Rats are rewarded for responding toward the cued direction. In correct trials, we observed decreased spike rates during the delay period, the time interval between cue presentation and reward delivery. Firing-rate histograms show significant decreases during the delay period compared to 5-sec windows from both pre-cue and post-reward periods. We analyzed how running speed and trajectory specificity correlated to spike rate. Twice as many cells were responsive to cue alone compared to running speed. Trajectory specificity did not relate significantly to firing rate. Decreased spike rate may reflect active maintenance in other structures inhibiting mEC. Alternately, the reduction may reflect decreases in background activity during enhanced attention and cholinergic modulation. Lastly, animals often ran through the T-maze choice-point with varying speed. We calculated the spatial posterior probability density from spike rates during these choice-point passes. Slow passes through the choice point were characterized by greater probability of decoding to the reward locations on correct trials compared to quick passes on the maze consistent with similar "look-ahead" properties previously reported in the hippocampus and ventral striatum. 相似文献