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171.
The differential outcomes effect—the enhancement of learning and memory performance by correlating distinct reinforcers with
to-be-remembered events (sample stimuli)—has been stated to be one of the most robust phenomena in learning psychology. However,
in this paper we demonstrate that the correlation between unique samples and unique reinforcers can either interfere with
or enhance learning a spatial matching-rule, dependent on whether these two processes are trained concurrently or sequentially.
If the Pavlovian conditioning (unique sample-reward pairings) occurs before the matching rule is learned (sequentially), the
conditioned expectations of unique rewards will enhance the acquisition of the spatial matching-rule in rats (the differential
outcomes effect will be observed). However, if rats are required to learn the Pavlovian associations and the matching-rule
concurrently, they are impaired in acquiring the spatial matching-rule. Thus, employing the differential outcomes procedure
can either enhance or detract from learning and remembering the task rule—dependent on the nature of the task and order of
training. These data suggest that under some circumstances learning Pavlovian associations can compete with the formation
of instrumental behavior. 相似文献
172.
Antje von Suchodoletz Natalia M. Rojas Iryna Nadyukova Ross A. A. Larsen Fitim Uka 《American journal of community psychology》2019,63(3-4):286-297
Teachers’ stress is a dynamic combination of the individual teacher's characteristics and characteristics of the classroom and school environment. To date, there are limited studies on teachers’ stress in the context of lower‐middle‐income countries (LMICs), where working conditions as well as general political and economic circumstances might pose a considerable threat for teachers’ well‐being. This study explores whether certain combinations of individual and environmental experiences of teachers in LMICs may result in stress, assessed as patterns of diurnal cortisol rhythm. Participants were kindergarten teachers in Kosovo and Ukraine, two LMICs in Europe. Latent Profile Analysis identified three subgroups of teachers that significantly differed on teachers’ education and experience. Preliminary results of Latent Growth Modeling suggested differences between profiles in baseline waking cortisol and patterns of diurnal decline. Teachers in the profile that was characterized by the longest experience working in the field but the lowest level of education showed blunted cortisol in the morning and a flatter slope; a pattern that could indicate a maladaptive cortisol response. Future directions for studying stress processes among teachers in LMICs and implications for policy and practice on how to support teacher well‐being in low‐resource contexts are discussed. 相似文献
173.
Cervelló EM Jiménez R del Villar F Ramos L Santos-Rosa FJ 《Perceptual and motor skills》2004,99(1):271-283
This study analyzes how dispositional goal orientations and perception of different motivational climates are related to the students' perception of sex-related egalitarian treatment and the appearance of disciplined or undisciplined behaviors in physical education classes. Analyses showed that ego orientation is a predictor of undisciplined behavior. Task orientation was positively associated to discipline. The perception of task-involving motivational climate is related to the students' perception of equal treatment. On the contrary, the perception of ego-involving climate has been linked positively to the prediction of the perception of sex discrimination in physical education classes and negatively to the perception of equality and the appearance of disciplined behavior. This study discusses the implications of these results related to teaching instructional actions in physical education classes. 相似文献
174.
Menezes de Lucena Carvalho VA Fernández Calvo B Hernández Martín L Ramos Campos F Contador Castillo I 《Psicothema》2006,18(4):791-796
This paper investigates the relationship between resilience and positive/negative mental aspects of psychological well-being in formal caregivers for the elderly. The sample consisted of 265 caregivers who work in different residential homes in Extremadura and Castilla y León (Spain). The instruments used included the Connor-Davidson Resilience Scale , the Maslach Burnout Inventory-General Survey and the Utrecht Work Engagement Scale. The most significant findings show that caregivers with higher levels of resilience also have higher levels of professional efficacy and job engagement (vigor, dedication and absorption) and appear to be less emotionally exhausted or cynical than caregivers with lower levels of resilience. It cannot be concluded that more resilient caregivers will not get burned out, but they develop better engagement skills. As they strengthen these personal attributes, they become less vulnerable to burnout. 相似文献
175.
Blankenship V Vega CM Ramos E Romero K Warren K Keenan K Rosenow V Vasquez J Sullivan A 《Journal of personality assessment》2006,86(1):100-114
We used the Rasch (1980) model to develop new pictures for the Thematic Apperception Test (C. D. Morgan & Murray, 1938; McClelland, Atkinson, Clark, & Lowell, 1953) or picture story exercise to measure need for achievement (nAch). In Experiments 1 and 2, we analyzed stories to assess the difficulty level of a total of 8 pictures using the multifaceted Rasch model with picture difficulty, story probe difficulty, and participant ability as facets with a partial credit model (FACETS; Linacre, 2005). A total of 6 pictures were retained and 4 new ones added for Experiment 3 in which 201 participants wrote 6 stories to a random set of the 10 pictures. FACETS analysis revealed improved person separation reliability. In Experiment 4, 206 participants wrote 1 story to the Studying picture either before or after filling out a battery of achievement-related questionnaires. The 2 experimental groups did not differ in the amount of nAch in their stories. The coder facet was demonstrated with 2 independent coders using the revised coding system for nAch. 相似文献
176.
Robles Y Vivas-Mejía PE Ortiz-Zuazaga HG Félix J Ramos X Peña de Ortiz S 《Neurobiology of learning and memory》2003,80(1):80-95
Learning and long-term memory are thought to involve temporally defined changes in gene expression that lead to the strengthening of synaptic connections in selected brain regions. We used cDNA microarrays to study hippocampal gene expression in animals trained in a spatial discrimination-learning paradigm. Our analysis identified 19 genes that showed statistically significant changes in expression when comparing Nai;ve versus Trained animals. We confirmed the changes in expression for the genes encoding the nuclear protein prothymosin(alpha) and the delta-1 opioid receptor (DOR1) by Northern blotting or in situ hybridization. In additional studies, laser-capture microdissection (LCM) allowed us to obtain enriched neuronal populations from the dentate gyrus, CA1, and CA3 subregions of the hippocampus from Nai;ve, Pseudotrained, and spatially Trained animals. Real-time PCR examined the spatial learning specificity of hippocampal modulation of the genes encoding protein kinase B (PKB, also known as Akt), protein kinase C(delta) (PKC(delta)), cell adhesion kinase(beta) (CAK(beta), also known as Pyk2), and receptor protein tyrosine phosphatase(zeta/beta) (RPTP(zeta/beta)). These studies showed subregion specificity of spatial learning-induced changes in gene expression within the hippocampus, a feature that was particular to each gene studied. We suggest that statistically valid gene expression profiles generated with cDNA microarrays may provide important insights as to the cellular and molecular events subserving learning and memory processes in the brain. 相似文献
177.
The neuropharmacological mechanisms involved in the prandial drinking pattern seen in rats with superior salivatory nucleus lesions + parotidectomy were investigated with behavioral methods. Results showed that the administration of low doses (0.1 mg/kg body wt) of atropine in lesioned rats potentiated previously established prandial drinking. Higher doses of atropine (1.0 mg/kg), however, were required to induce a similar degree of prandiality in control rats (parotidectomy alone). These findings suggest that the salivatory nucleus lesions affected a cholinergic brainstem-salivary gland system involved in the neural control of food-associated drinking. 相似文献
178.
Age differences in cognitive performance: A study of cultural differences in Historical Context
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Natalia Ojeda Eleni Aretouli Javier Pea David J. Schretlen 《Journal of Neuropsychology》2016,10(1):104-115
Ethnicity and cultural experience can affect neuropsychological performance, but they are rarely assessed in historical context. Attention measures are considered strongly biologically determined and therefore potentially culture‐fair. In this study, we assessed the cross‐cultural equivalence of Spanish and English versions of the Trail Making Test (TMT; Reitan, 1958, Perceptual and Motor Skills, 8, 271–276) and the Brief Test of Attention (BTA; Schretlen et al., 1996, The Clinical Neuropsychologist, 10, 80–89) in two large samples of Americans (N = 203) and Spaniards (N = 213), divided into younger and older subgroups. The older Spaniards lived under Franco's political regime (1936–1975), whereas the Americans never experienced such repression. Overall, TMT performance was culture‐sensitive, whereas BTA performance was not. However, when both groups were stratified by age, cultural differences in TMT performance were restricted to older participants, suggesting that historical experience across generations might have contributed to the observed differences in cognitive performance. Even such basic cognitive processes as attention, working memory, and resource sharing might be shaped to some degree by historical experiences that contribute to cultural differences. 相似文献
179.
Magdalena Łuniewska Ewa Haman Sharon Armon-Lotem Bartłomiej Etenkowski Frenette Southwood Darinka Anđelković Elma Blom Tessel Boerma Shula Chiat Pascale Engel de Abreu Natalia Gagarina Anna Gavarró Gisela Håkansson Tina Hickey Kristine Jensen de López Theodoros Marinis Maša Popović Elin Thordardottir Agnė Blažienė Myriam Cantú Sánchez Ineta Dabašinskienė Pınar Ege Inger-Anne Ehret Nelly-Ann Fritsche Daniela Gatt Bibi Janssen Maria Kambanaros Svetlana Kapalková Bjarke Kronqvist Sari Kunnari Chiara Levorato Olga Nenonen Siobhán Nic Fhlannchadha Ciara O’Toole Kamila Polišenská Barbara Pomiechowska Natalia Ringblom Tanja Rinker Maja Roch Maja Savić Daniela Slančová Ianthi Maria Tsimpli Özlem Ünal-Logacev 《Behavior research methods》2016,48(3):1154-1177
180.
Miguel R. Ramos Manuela Barreto Naomi Ellemers Miguel Moya Lúcia Ferreira Jimmy Calanchini 《European journal of social psychology》2016,46(4):455-466
Two studies examined the effect of exposure to sexism on implicit gender bias, focusing specifically on stereotypes of men as competent and women as warm. Male and female participants were exposed to sexism or no sexism. In both Experiment 1 (Implicit Association Task; N = 115) and Experiment 2 (Go/No‐go Association Task; N = 167), women who had been exposed to sexist beliefs demonstrated less implicit gender stereotype bias relative to women who were not exposed to sexism. In contrast, exposure to sexism did not influence men's implicit gender stereotype bias. In Experiment 2, process modelling revealed that women's reduction in bias in response to sexism was related to increased accuracy orientation and a tendency to make warmth versus competence judgments. The implications of these findings for current understandings of sexism and its effects on gender stereotypes are discussed. 相似文献