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181.
The relation between the generalized matching law and signal-detection theory 总被引:36,自引:35,他引:1
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The generalized matching law can be applied to a signal-detection matrix to give two equations. The first relates responding in the presence of the stimulus to the reinforcements for the responses, and the second relates responding in the absence of the stimulus to the reinforcements for the responses. Evidence for stimulus discrimination is given by biases that are opposite in sign in the two equations. As the logarithmic ratio and z proportion transformations are similar, the combination of the absolute values of the two logarithmic biases gives a measure equivalent to the signal-detection measures d′ and η. The two equations can also be combined to eliminate the biases caused by the signalling stimuli and to produce a generalized matching-law statement relating overall performance to the obtained reinforcements. 相似文献
182.
This paper develops a unified approach, based on ranks, to the statistical analysis of data arising from complex experimental designs. In this way we answer a major objection to the use of rank procedures as a major methodology in data analysis. We show that the rank procedures, including testing, estimation and multiple comparisons, are generated in a natural way from a robust measure of scale. The rank methods closely parallel the familiar methods of least squares, so that estimates and tests have natural interpretations.This research was supported in part by grant MCS76-07292 from the National Science Foundation. 相似文献
183.
Verbal self-reports about matching to sample: effects of the number of elements in a compound sample stimulus. 总被引:1,自引:1,他引:0
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Adults' self-reports about their choices in a delayed matching-to-sample task were studied as a function of the number of elements (one, two, or three) in a compound sample stimulus. Signal-detection analyses were used to examine control of self-reports by the number of sample elements, by the speed and accuracy of choices reported about, and by several events contingent on self-reports. On each matching-to-sample trial, a sample element appeared as one of two comparison stimuli. Choice of the matching element, if made within 500 ms of the onset of the comparison stimuli, produced points worth money or chances in a drawing for money, depending on the subject. After each choice, subjects pressed either a "yes" or "no" button to answer a computer-generated query about whether the choice met the point contingency. The number of sample elements in the matching-to-sample task varied across trials, and events contingent on self-reports varied across experimental conditions. In Experiment 1, the conditions were defined by different combinations of feedback messages and point consequences contingent on self-reports, but self-reports were systematically influenced only by the sample-stimulus manipulation. Self-report errors increased with the number of sample elements. False alarms (inaccurate reports of success) were far more common than misses (inaccurate reports of failure), and false alarms were especially likely after choices that were correct but too slow to meet the point contingency. Sensitivity (A') of self-reports decreases as the number of sample elements increased. In addition, self-reports were more sensitive to choice accuracy than to choice speed. All subjects showed a pronounced bias (B'H) for reporting successful responses, although the bias was reduced as the number of sample elements increased and successful choices became less frequent. Experiment 2 demonstrated that the failure of point contingencies to influence self-reports in the first experiment was not due to a general ineffectiveness of the point consequences. Rates of inaccurate self-reports decreased when they resulted in point losses and increased when they resulted in point gains. 相似文献
184.
The purpose of the study was to describe naturally occurring infant and maternal behaviours in terms of social referencing in a stranger wariness situation, and to explore antecedents to such behaviouts in early maternal sensitivity and infant irritability. One hundred and ten 10-months-old infants and their mothers were videotaped. Infant social referencing behaviour was defined as puzzled looks directed at mother's face after the infant had discovered the stranger. Almost half of the infants looked with a puzzled expression at their mothers immediately after discovering the stranger, and a majority of the mothers sent a positive message back to the infants. Twenty per cent of the infants never looked at their mothers and 20% of the mothers did not respond when their infants turned to them. Infants whose mothers had responded positively to the referencing look showed positive responses to the stranger to a higher degree than infants who did not reference or those who were not responded to. Antecedents to infant and mother interactive behaviours were sought in maternal sensitivity (general sensitivity, physical contact, responsiveness, intrusiveness, response to distress, and effectiveness in comforting) and in infant irritability as observed when the infants were 4 months old. It was found that infants who did not reference their mothers for information at 10 months had experienced less sensitive mothering 6 months earlier and had also shown more irritability. 相似文献
185.
Transient effects of acquisition history on generalization in a matching-to-sample task 总被引:3,自引:3,他引:0
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This study examined the role of learning history on the acquisition of a matching-to-sample task. Twelve preschool children learned four stimulus classes through instructions, shaping, or imitation. After reaching criterion, the subjects were exposed to changed discrimination contingencies to determine how each learning history affected the acquisition of responses appropriate to the new contingencies. All subjects reached criterion on the new relations, although the subjects with a shaping history adapted slightly more quickly than those subjects with a history of instructions or imitation. Given sufficient exposure to changed contingencies, rule-driven insensitivity to contingencies was overcome by experience with consequences. This result may be specific to younger subjects, but it suggests that instructions can be used in education without creating insensitivity to contingencies. 相似文献
186.
Linnea Tillema 《Journal of the history of the behavioral sciences》2023,59(3):301-321
This article examines the introduction of “sensitivity training” to 1970s Swedish work life. Drawing upon a range of empirical materials, I explore the politics that were involved in the process of translating and adapting this group dynamic method to the Swedish context and consider how its proponents argued for its value. By approaching sensitivity training as an attempt to govern, shape, and regulate both human beings and the work organizations of which they were a part, I argue that sensitivity training presents an unexpectedly early example of a governing rationality that has elsewhere been described and theorized as “neoliberal.” The fact that sensitivity training was established in Swedish work life already in the early 1970s thus challenges the historiography of neoliberal modes of government, which have elsewhere been associated with a neoliberal shift in state policies occurring in the 1980s and 1990s. The article demonstrates how emotionally liberating practices in the late 1960s and early 1970s were embraced by some of the most politically influential actors in contemporary Swedish society, such as the corporate sector and the trade unions. As blue-collar trade unions and social democrats voiced increasingly far-reaching demands concerning workplace democracy and improved workplace conditions, advocates of sensitivity training presented their method as crucial to the process of “democratizing” and “humanizing” Swedish work life. Intimately associated with the new therapies of humanistic psychology, sensitivity training was used within the corporate sector to foster a more emotional and authentic leadership style that would embrace the values of emotional awareness, self-expression, and self-actualization. The crying boss emerged in this context as a key figure in the project of creating a “democratic” and psychologically satisfying organization. Yet, sensitivity training was also described as a means for companies to make better use of what was now asserted as their most important economic asset: the human being. From the outset, the idealistic vision of an emotionally liberated, democratic workplace was thus entangled with a specific kind of economic rationality, in which the emotionally liberated, self-actualizing individual emerged as a capital or asset that would be better utilized if the organization allowed—even encouraged—employees to engage in their own well-being and self-optimization. 相似文献
187.
How mothers respond to infants’ distress has implications for infants’ development of self-regulation and social competence. In a sample of 35 mothers and their 4- to 8-month-old infants, we induced infant distress using an arm restraint task and compared infants’ observed affect and physiological responses under two conditions, when mothers were instructed to respond with: 1) positive affect and 2) negative affect. Based on theoretical and empirical support, we empirically evaluated two opposing hypotheses. Based on the Mutual Regulation Model and work on affect matching, we predicted that when mothers respond with negative affect versus positive affect, distressed infants’ duration of negative affect would be smaller, negative affect would be less intense, and respiratory sinus arrythmia (RSA) withdrawal would be lower. Based on social referencing theory and research, we expected that when mothers respond with positive affect versus negative affect, distressed infants’ duration of negative affect would be smaller, negative affect would be less intense, and RSA withdrawal would be lower. We found that when mothers responded to their distressed infants with negative affect versus positive affect, infants spent significantly more time in negative affect, their intensity of expressed negative affect was greater, and their RSA withdrawal was greater, suggesting that mothers’ display of mild positive affect when infants are distressed may be helpful for infants. The current findings add to accumulating evidence that mothers’ positive relative to negative affective response to their infants’ distress can produce observable differences in infants’ duration and intensity of negative affect, as well as their physiology. Findings have the potential to inform future research that investigates how mothers can most effectively reduce their infants’ distress and intervention that targets the moment-to-moment behaviors in mother-infant reciprocal interactions. 相似文献
188.
Sensitive caregiving is an essential aspect of positive parenting that influences executive functions development, but the mechanisms underlying this association are less clear. Using data from the Family Life Project, a large prospective longitudinal sample of 1292 families residing in rural, predominately low-income communities, the current study examined whether sensitive caregiving impacts executive functions development by shaping behavioral reward processing systems in early postnatal life. Results indicated that higher levels of sensitive caregiving during infancy were associated with heightened reward responsivity at age 4, which in turn predicted superior executive functions ability at age 5. Notably, children's reward responsivity partially mediated the relationship between sensitive caregiving in infancy and executive functions ability at school entry. These findings add to prior work on early experience and children's executive functions and highlight caregiver scaffolding of developing reward processing systems as a potential foundational mechanism for supporting adaptive behavior and self-regulation across the lifespan. 相似文献
189.
Sascha Schwarz Lisa Klümper Markus Thomas Jansen Maria Agthe 《Social and Personality Psychology Compass》2023,17(12):e12914
Violations against mitigation actions to prevent the spreading of the SARS-CoV-2 virus causing COVID-19, such as not wearing a mask or not practicing social distancing, were seen as immoral and could also increase the likelihood of spreading the virus. In two studies (N1 = 318, N2 = 293), we found that moral and pathogen disgust sensitivity differentially predicted perceptions of such COVID-19 violations against mitigation actions, framed as a moral, pathogen, or on a good-bad dimension, albeit in a less specific way than initially hypothesized (e.g., regarding the pathogenic framed violations, not only pathogen but also moral disgust was associated with higher perceptions of infectiousness). These results suggest that individual differences, especially in pathogen disgust (and, more inconsistently, moral disgust), are important when evaluating violations against mitigation actions. Further research on the role of moral disgust is needed. 相似文献
190.
Benard P. Dreyer Alan L. Mendelsohn Catherine S. Tamis-LeMonda 《Infant and child development》1996,5(4):271-287
In a series of investigations with poor minority families, we examined the reliability and validity of the StimQ, an office-based interview of children's cognitive home environment. Researchers and practitioners alike recognize the importance of assessing meaningful dimensions of children's early experiences, particularly in families where children may be at risk for later cognitive delay. To date, methodological approaches to the study of parenting have most often relied on home visits and/or labour-intensive observations and coding. Our findings suggest that valid and reliable data about the cognitive environments of poor children can be obtained through maternal report, thereby offering applied scientists a useful alternative to assessing children's early experiences. © 1996 John Wiley & Sons, Ltd. 相似文献