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141.
The effects of four novel odors on risk assessment by mice (i. e., flat back approach, stretched attention, immobility) and the suppression of appetitive behaviors were examined in two experiments. When novel odors were presented in a straight runway, subjects spent significantly less time in the odor compartment, relative to controls, when it contained sheep wool, chocolate, or citronella (but not cat fur) odors. Risk assessment behaviors occurred at similar levels among all groups and appetitive behaviors were not suppressed by the novel odors. When odorants were scattered over one half of the subjects' home cage floor in Experiment 2, all novel odors increased the duration of at least on e risk assessment measure and/or suppressed appetitive behaviors (i. e., eating, grooming, rearing). The results clearly reveal that a reasonably wide range of novel odors evoke at least some level of risk assessment which presumably reflects increased fearfulness. The odors of sheep wool and cat fur induced a wider range of such responses than did chocolate or cinnamon suggesting that mammalian odors may be particularly effective stimuli. If so, however, it is clear that predator odors are not uniquely effective in this regard. Experiment 1 also underscores the importance of the testing environment in assessing the behavioral effects of novel odors in mice. © 1993 Wiley-Liss, Inc. 相似文献
142.
This paper considers well known results of psychological researchinto the fallibility of human reason, and philosophical conclusionsthat some have drawn from these results. Close attention to theexact content of the results casts doubt on the reasoning that leadsto those conclusions. 相似文献
143.
The fear-potentiating effects of fluprazine hydrochloride were explored in a series of five experiments. The drug was found to strongly inhibit entry into a novel open field, exploration of a complex maze, or approach to a novel object placed in the animal's home cage. Time sampling techniques were used to assess drug effects on frequencies of immobility, activity, and grooming and rearing responses prior to and for 70 min after footshock. There were no group differences during the 10 min immediately following shock but the groups diverged steadily in immobility, activity, and grooming for the remainder of the observations. Post-shock activity and grooming responses increased steadily towards baseline values among control mice but remained at low levels or declined among drug-treated mice. Immobility responses declined steadily among control mice but increased substantially among the fluprazine-treated mice throughout post-shock observations. Pairs of male mice treated with fluprazine were also found to maintain greater intermouse distances in a novel linear runway than pairs of undrugged adult males, juvenile males, or male-female pairs. It is suggested that fluprazine hydrochloride both potentiates fear and alters its time course in addition to interfering in some way with normal olfactory processes. 相似文献
144.
It is well known that judgments of oblique line segments are more variable and less accurate than are judgments of horizontal
or vertical segments, i.e., the “oblique effect.” A prior study from our laboratories confirmed these differentials for a
task in which the collinearity of segments at various angular positions was judged. Further, that study found that each observer
manifests a distinct, idiosyncratic profile of errors across the 360° range. These error tendencies are conspicuous in models
derived by harmonic analysis, and we describe significant excursions of a given model as “delta errors.” The present experiments
found complex profiles of delta error with various stimulus and test conditions. A given subject manifested similar models
of delta error when judging collinearity of dot pairs versus line segments. In the prior work the segments to be judged were
asymmetrically positioned upon the test sheet. However, the asymmetric positioning is not responsible for the errors, as the
present work found errors excursions with a round display field. Similar profiles of delta error were found when subjects
were allowed to mark an open space, versus being required to respond at a specific distance (indicated by a target circle).
This addresses questions of whether the error should be measured as an angle. In the two final experiments, we present evidence
that the source of delta error within the nervous system is at the point of binocular synthesis of the information from the
two eyes, or beyond, and the effects are not due to errors of reaching. Potential neural substrates for these complex, idiosyncratic
error tendencies are discussed.
Received: 16 June 2000 / Accepted: 10 March 2001 相似文献
145.
This study extends prior research on antecedents of individual differences in God concepts in early childhood by examining relations of parents' and teachers' God concepts and religious denomination of schools with children's God concepts. Participants were 165 preschoolers (mean age 63 months), 107 of their parents and 16 teachers. These subjects were distributed over eight elementary schools belonging to four different religious denominations, i.e. Catholic, Dutch Reformed, Orthodox Reformed and State schools. The God concepts of children, parents and teachers were measured using interviews and questionnaires. Results showed that both parents' and teachers' God concepts were predictive of children's God concepts, but each in a different way. Parents seem to influence the relational component of children's God concepts particularly. Teachers especially contribute to biblical content of children's God concepts. Religious denomination of schools had independent effects on children's God concepts, controlling for parental denomination. 相似文献
146.
This paper is truly a joint effort and it could not have been written without the contribution of both authors. Garson, though, deserves credit (or blame) for first seeing the need for two kinds of quantifier scope, and also for devising essentials of the positive theory. 相似文献
147.
148.
Roos Hutteman Wiebke Bleidorn Gordana Keresteš Irma Brković Ana Butković Jaap J. A. Denissen 《欧洲人格杂志》2014,28(2):168-179
Having children affects many aspects of people's lives. However, it remains unclear to what degree the challenges that come along with having children are associated with parents' personality development. We addressed this question in two studies by investigating the relationship between parenting challenges and personality development in mothers of newborns (Study 1, N = 556) and the reciprocal associations between (mastering) parenting challenges and personality development in parents of adolescents (Study 2, N = 548 mothers and 460 fathers). In Study 1, we found the stress of having a newborn baby to be associated with declines in maternal Agreeableness, Conscientiousness, and Emotional Stability. Parenting challenges were also related to personality development in parents of adolescent children in Study 2, with parent–child conflict being reciprocally associated with decreases in Conscientiousness and Emotional Stability. Mastering parenting challenges in the form of high parenting self‐efficacy, on the other hand, was found to be associated with increases in Agreeableness, Conscientiousness, and Emotional Stability, and vice versa. In sum, our results suggest that mastering the challenges associated with the social role of parenthood is one of the mechanisms underlying personality development in young and middle adulthood. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
149.
Ernest S. Park Verlin B Hinsz Gary S. Nickell 《Journal of applied social psychology》2015,45(7):363-373
The food‐processing industry emphasizes employee compliance to food‐safety standards to prevent distribution of contaminated foods. Regulatory fit theory was tested to examine the applicability of self‐regulation constructs as potential components of person‐job fit. In contexts emphasizing safety, workers higher in prevention should experience greater person‐job fit, thus prevention focus should relate to desirable outcomes. Poultry‐processing workers (n = 180) completed a work‐related regulatory focus scale as part of a survey including a set of outcome measures. Consistent with theory, prevention focus scores related to self‐reported positive work outcomes (job effectiveness, satisfaction, efficacy, enjoyment, involvement), and relationships were statistically mediated by perceived regulatory fit. Results have implications for selection practices and suggest ways work can be structured to enhance job performance. 相似文献
150.