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1.
Ronald P. Larkin 《Behavior research methods》1972,4(1):32-33
The Rockefeller University, New York, New York 10021 Events such as barpresses or licks, which may occur at any time during the day, are often clustered into bouts. The internal structure of such bouts can be recorded using an AM tape recorder, running the tape recorder only while bouts are in progress, and can later be analyzed off-line on a digital computer. 相似文献
2.
Probabilities and polarity biases in conditional inference 总被引:15,自引:0,他引:15
Oaksford M Chater N Larkin J 《Journal of experimental psychology. Learning, memory, and cognition》2000,26(4):883-899
A probabilistic computational level model of conditional inference is proposed that can explain polarity biases in conditional inference (e.g., J. St. B. T. Evans, 1993). These biases are observed when J. St. B. T. Evans's (1972) negations paradigm is used in the conditional inference task. The model assumes that negations define higher probability categories than their affirmative counterparts (M. Oaksford & K. Stenning, 1992); for example, P(not-dog) > P(dog). This identification suggests that polarity biases are really a rational effect of high-probability categories. Three experiments revealed that, consistent with this probabilistic account, when high-probability categories are used instead of negations, a high-probability conclusion effect is observed. The relationships between the probabilistic model and other phenomena and other theories in conditional reasoning are discussed. 相似文献
3.
A range of possible predictors of arithmetic and reading were assessed in a large sample (N=162) of children between ages 7 years 5 months and 10 years 4 months. A confirmatory factor analysis of the predictors revealed a good fit to a model consisting of four latent variables (verbal ability, nonverbal ability, search speed, and phonological memory) and two manifest variables (digit comparison and phoneme deletion). A path analysis showed that digit comparison and verbal ability were unique predictors of variations in arithmetic skills, whereas phoneme deletion and verbal ability were unique predictors of variations in reading skills. These results confirm earlier findings that phoneme deletion ability appears to be a critical foundation for learning to read (decode). In addition, variations in the speed of accessing numerical quantity information appear to be a critical foundation for the development of arithmetic skills. 相似文献
4.
Working memory mediates the short-term maintenance of information. Virtually all empirical research on working memory involves investigations of working memory for verbal and visual information. Whereas aging is typically associated with a deficit in working memory for these types of information, recent findings suggestive of relatively well-preserved long-term memory for emotional information in older adults raise questions about working memory for emotional material. This study examined age differences in working memory for emotional versus visual information. Findings demonstrate that, despite an age-related deficit for the latter, working memory for emotion was unimpaired. Further, older adults exhibited superior performance on positive relative to negative emotion trials, whereas their younger counterparts exhibited the opposite pattern. 相似文献
5.
6.
Advances in bioacoustics allow us to study the perceptual and functional relevance of individual acoustic parameters. Here, we use re-synthesised male koala bellows and a habituation-dishabituation paradigm to test the hypothesis that male koalas are sensitive to shifts in formant frequencies corresponding to the natural variation in body size between a large and small adult male. We found that males habituated to bellows, in which the formants had been shifted to simulate a large or small male displayed a significant increase in behavioural response (dishabituation) when they were presented with bellows simulating the alternate size variant. The rehabituation control, in which the behavioural response levels returned to that of the last playbacks of the habituation phase, indicates that this was not a chance increase in response levels. Our results provide clear evidence that male koalas perceive and attend to size-related formant information in their own species-specific vocalisations and suggest that formant perception is a widespread ability shared by marsupials and placental mammals, and perhaps by vertebrates more widely. 相似文献
7.
Shirley Larkin Rob Freathy Karen Walshe Jonathan Doney 《Journal of Beliefs & Values》2014,35(2):175-186
Recent reports on Religious Education (RE) in England and Wales highlight the need for guidance on pedagogy and learning. The RE-flect project addressed this by promoting the creation of metacognitively oriented learning environments in primary school RE classrooms. Six primary school teachers and 160 pupils (eight to 10 years of age) took part in the second year of this two year project. Meta-thinking, worldview and resources zones were created in each classroom. Attainment in RE and pupil perceptions of the learning environment were measured. Data from classroom observations, Worldview Profiles (WVP), and pupil and teacher interviews were analysed qualitatively. Results show an overall increase in attainment; a positive change in pupil perceptions of the learning environment; and the ability of pupils to reflect on and articulate their worldviews. Implications for RE curricular and pedagogy are discussed. 相似文献
8.
Claassen CA Trivedi MH Shimizu I Stewart S Larkin GL Litovitz T 《Suicide & life-threatening behavior》2006,36(2):192-212
The absence of validated U.S. rates of nonfatal suicidal behavior places risk management and injury prevention programs at danger of being poorly informed and inadequately conceptualized. In this study we compare estimated rates of intentional self-harm from two ongoing surveys (National Electronic Injury Surveillance System-All Injury Program-NEISS-AIP; National Hospital Ambulatory Medical Care Survey-NHAMCS) to data from the Toxic Exposure Surveillance System. Results suggest that, for every 2002-2003 suicide, there were 12 (NEISSAIP) or 15 (NHAMCS) self-harm-related emergency department visits, and for every intentional self-poisoning death there were 33 intentional overdoses reported to poison control centers, of which two ultimately went untreated. 相似文献
9.
Paul Flowers Mark McGregor Davis Michael Larkin Stephanie Church Claire Marriott 《Psychology & health》2013,28(10):1378-1391
Objectives: Although a wide literature details the psychological impact of human immunodeficiency virus (HIV) diagnosis, it predates the introduction of effective treatment for HIV (i.e. anti-retroviral therapies, ARTs). This article explores the psychological impact of HIV diagnosis in post-ART accounts. This is important, given the recent policy developments which focus upon increasing HIV testing and thus diagnoses. Design: This study presents a qualitative exploration of the experiential accounts of HIV-positive gay men living in Scotland. A total of 14 HIV-positive gay men took part in open-ended interviews. Methods: Interpretative phenomenological analysis was employed to identify recurrent themes across the interviews. Results: Our analysis focuses upon the participants’ struggles in adjusting to their HIV status. Diagnosis was a deeply shocking and unexpected experience. Stigma and fear of prejudice dominated their accounts. HIV was understood, variously, as a shameful, fatal and life-changing condition. Overall, within these accounts there was little sense of HIV normalisation. Conclusions: In Scotland, where HIV prevalence is low, and where no accessible HIV-positive sub-culture exists, there is on-going psychological distress and morbidity amongst gay men testing HIV positive. As HIV-related policy increasingly focuses on increasing rates of antibody testing, there is a need to reduce the psychosocial costs associated with HIV-positive diagnoses. 相似文献
10.
Do behavioral responses mediate or moderate the relation between cardiovascular reactivity to stress and parental history of hypertension? 总被引:1,自引:0,他引:1
To examine whether differences in behavioral responses to stress mediated or moderated the relation between cardiovascular response to stress and parental history of hypertension, 64 healthy undergraduates-16 men with hypertensive parents (PH+), 16 men without hypertensive parents (PH-), 16 PH+ women, and 16 PH- women-participated in a mental arithmetic task, mirror tracing task, and 2 interpersonal role plays. PH+ participants exhibited higher resting heart rates than PH- participants and higher resting systolic blood pressures (SBPs) than PH- women. PH+ participants exhibited greater SBP responses to tasks and engaged in more negative verbal and nonverbal behavior across tasks than PH- counterparts. Differences in behavioral responding neither mediated nor moderated the observed relation between parental history status and SBP response to stress. 相似文献