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131.
Mason AH 《Journal of motor behavior》2007,39(4):291-305
By manipulating task action demands in 2 experiments, the author investigated whether the context-dependent effects seen in unimanual multiphase movements are also present in bimanual movements. Participants (N = 14) in Experiment 1 either placed or tossed objects into targets. The results indicated that the intention to perform a subsequent action with an object could influence the performance of an earlier movement in a sequence in both unimanual and bimanual tasks. Furthermore, assimilation effects were found when the subsequent tasks being performed by the 2 hands were incongruent. In Experiment 2, the author investigated in 12 participants whether planning in a multiphase movement includes some representation of the accuracy demands of the subsequent task. The accuracy demands of a subsequent task did not appear to influence initial movement planning. Instead, the present results support the notion that it is the action requirements of the subsequent movement that lead to context-dependent effects. 相似文献
132.
Sandak R Mencl WE Frost SJ Rueckl JG Katz L Moore DL Mason SA Fulbright RK Constable RT Pugh KR 《Cognitive, affective & behavioral neuroscience》2004,4(1):67-88
fMRI was used to investigate the separate influences of orthographic, phonological, and semantic processing on the ability
to learn new words and the cortical circuitry recruited to subsequently read those words. In a behavioral session, subjects
acquired familiarity for three sets of pseudowords, attending to orthographic, phonological, or (learned) semantic features.
Transfer effects were measured in an event-related fMRI session as the subjects named trained pseudowords, untrained pseudowords,
and real words. Behaviorally, phonological and semantic training resulted in better learning than did orthographic training.
Neurobiologically, orthographic training did not modulate activation in the main reading regions. Phonological and semantic
training yielded equivalent behavioral facilitation but distinct functional activation patterns, suggesting that the learning
resulting from these two training conditions was driven by different underlying processes. The findings indicate that the
putative ventral visual word form area is sensitive to the phonological structure of words, with phonologically analytic processing
contributing to the specialization of this region. 相似文献
133.
W. Alex Mason Kevin P. Haggerty Andrew P. Fleming Mary Casey-Goldstein 《Journal of child and family studies》2012,21(6):891-905
Parental depression places offspring at elevated risk for multiple, co-occurring problems. The purpose of this study was to develop and preliminarily evaluate Project Hope, a family intervention for the prevention of both depression and substance use among adolescent-aged children (M?=?13.9?years) of depressed parents. The program was created by blending two empirically supported interventions: one for depression and another for substance use. Thirty families were randomly assigned to either Project Hope (n?=?16) or a wait-list control condition (n?=?14). Pretests, posttests (n?=?29), and 5-month follow-ups (n?=?28) were conducted separately with parents and youth via phone interviews. Questions asked about the family depression experience, family interactions, family management, coping, adolescent substance use beliefs and refusal skills, adolescent depression, and adolescent substance use. Project Hope was fully developed, manualized, and implemented with a small sample of targeted families. Engagement in the program was relatively high. Preliminary outcome analyses were conducted using 2 (Group) ×3 (Time) analyses of covariance. Results provided some evidence for significant improvements among intervention compared to control participants in indicators of the family depression experience, family management, and coping, and a statistically significant decrease from pretest to posttest in alcohol quantity for intervention compared to control youth. Next steps for this program of research are discussed. 相似文献
134.
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136.
Craig A. Mason Ana Mari Cauce Nancy Gonzales Yumi Hiraga 《American journal of community psychology》1994,22(6):723-743
Examined the effect of peer problem behavior, the absence of a father or equivalent in the home, and the mother-adolescent
relationship as predictors of adolescent problem behavior in a sample of 112 African American adolescents. Statistical analyses
compared a moderator model to a mediational model and a cumulative risk model. As predicted, the moderator model was superior
to the alternative models. Specifically, whereas the mediational model predicted that the effect of father absence and the
mother-child relationship upon adolescent problem behavior would be mediated by peer problem behavior, neither effected peer
problem behavior or adolescent problem behavior. Similarly, a cumulative risk index did not predict either child or parent
reports of problem behavior and was not sensitive to specific contingencies that existed between the predictor variables.
In contrast, an interactive, moderator model described the data quite well. This model suggested that father or equivalent
absence magnifies the negative impact of peer problem behavior, while a positive mother-adolescent relationship attenuates
this risk. A strong mother-adolescent relationship also served to protect adolescents in father-absent homes from the risk
of peer problem behavior.
This research was supported by a grant (NICHHD: HD24056) awarded to A. M. Cauce. The authors thank Nydia Ordonez, Tanya Aguilar,
and Laurie Deppman for their assistance on the project, and Cliff Lunneberg for suggestions regarding resampling procedures.
Portions of this paper were presented at the meetings of the Western Psychological Association, April 1992. 相似文献
137.
Dehryl A. Mason Paul J. Frick 《Journal of psychopathology and behavioral assessment》1994,16(4):301-323
In this paper, we describe a quantitative summary of 12 twin (n=3795 twin pairs and 3 adoption studies=338 adoptees) published since 1975 which provided 21 estimates of the heritability of antisocial behavior. Medium to large effect sizes were found for genetic influences across studies, with approximately 50% of the variance in measures of antisocial behavior attributable to genetic effects. Although effect sizes did not vary across different definitions of antisocial behavior (criminality, aggression, or antisocial personality), significantly larger estimates of genetic effect were found for severe manifestations of antisocial behavior. The importance of severity was further underscored by the significantly larger effects obtained in studies using clinic-referred samples compared to the effects obtained in studies using volunteer samples. Demographic characteristics of the samples did not influence effect sizes, although studies using more stringent methodology tended to find larger effects. These results must be interpreted in light of the small literature that was suitable for the meta-analysis due to numerous methodological limitations in existing studies. 相似文献
138.
The associations among n Power, n Affiliation, inhibition, stressful life events, and infliction and receipt of psychological and physical abuse in intimate relationships were investigated in a sample of 48 male and 107 female college undergraduates. Results indicated that life events that were perceived as being negative were associated with both the infliction and the receipt of abuse for women but not for men. Individual personality characteristics determined the tactics used in resolving intimate interpersonal conflicts. High n Power was significantly associated with the infliction of physical abuse on their partners by men, but not by women. For women, n Affiliation and activity inhibition moderated the effect that stress has on the infliction of abuse. Highly stressed women with high n Affiliation and low activity inhibition were the most likely to inflict abuse. Length and status of relationship were also found to be related to abuse, with abuse occurring most often between more committed couples. Sex differences were found for the relation between infliction and receipt of abuse. That is, receipt of abuse was highly correlated with infliction of abuse for women but not for men, suggesting that when women strike out they are struck in return. 相似文献
139.
Mildred Mason 《Memory & cognition》1978,6(5):568-581
Four experiments using college students as subjects provide evidence that both highly skilled and less skilled mature readers derive the names of printed words from visual access of the lexicon rather than by phonological recoding. Regularity of pronunciation (regular vs. exception words) as a variable of orthographic regularity effectiveafter visual code formation had no effect either between or within reading ability groups. Less skilled readers made more errors and were slower than highly skilled readers on both types of words. Sing-letter spatial redundancy, as a variable of orthographic regularity that influences the formation of visual codes, served to differentiate the two groups only in naming nonwords. Highly skilled readers used spatial redundancy to offset the effect of array length, whereas less skilled readers did not. Except for high-frequency words, visual access and retrieval of the pronunciation of words was significantly faster for highly skilled readers. Less skilled readers were most disadvantaged in naming nonwords, a task that requires phonological recoding. Overall results support the hypothesis that reading ability in mature readers is related to the speed of word recognition. Highly skilled readers may make more use of variables of orthographic regularity effective in the formation of visual codes. 相似文献
140.
Terry R Barclay Charles H Hinkin Steven A Castellon Karen I Mason Matthew J Reinhard Sarah D Marion Andrew J Levine Ramani S Durvasula 《Health psychology》2007,26(1):40-49
OBJECTIVE: Although most agree that poor adherence to antiretrovirals is a common problem, relatively few factors have been shown to consistently predict treatment failure. In this study, a theoretical framework encompassing demographic characteristics, health beliefs/attitudes, treatment self-efficacy, and neurocognitive status was examined in relationship to highly active antiretroviral therapy adherence. DESIGN: Prospective, cross-sectional observational design. MAIN OUTCOME MEASURES: Neuropsychological test performance, health beliefs and attitudes, and medication adherence tracked over a 1-month period using electronic monitoring technology (Medication Event Monitoring System caps). RESULTS: The rate of poor adherence was twice as high among younger participants than with older participants (68% and 33%, respectively). Results of binary logistic regression revealed that low self-efficacy and lack of perceived treatment utility predicted poor adherence among younger individuals, whereas decreased levels of neurocognitive functioning remained the sole predictor of poor adherence among older participants. CONCLUSION: These data support components of the health beliefs model in predicting medication adherence among younger HIV-positive individuals. However, risk of adherence failure in those ages 50 years and older appears most related to neurocognitive status. 相似文献