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1.
An insurrection, threats to our election system, and widespread distrust have spurred a national conversation about civic engagement. Many people of faith are responding with a desire to take action. However, the path to action is often deeply ambiguous. How we choose to take action that counts. This article is a personal reflection on how political engagement can animate faith and faith can guide political engagement. It suggests constant reflection on the subtle ways we can be led into complacency or inaction when interacting with political institutions. By reflecting on these mechanisms and connecting with our faith communities, this article posits that people of faith can thoughtfully and boldly make the daily decisions that make up our civic engagement. 相似文献
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Animal Cognition - Zebra finches rely mainly on syllable phonology rather than on syllable sequence when they discriminate between two songs. However, they can also learn to discriminate two... 相似文献
3.
Effects of differences between stimuli, responses, and reinforcer rates on conditional discrimination performance 总被引:5,自引:5,他引:0 下载免费PDF全文
In a discrete-trial conditional discrimination procedure, 4 pigeons obtained food reinforcers by pecking a key with a short latency on trials signaled by one stimulus and by pecking the same key with a long latency on trials signaled by a second stimulus. The physical difference between the two stimuli and the temporal separation between the latency values required for reinforcement were varied factorially over four sets of conditions, and the ratio of reinforcer rates for short and long latencies was varied within each set of conditions. Stimulus discrimination varied directly with both stimulus and response differences and was unaffected by the reinforcer ratio. Sensitivity to reinforcement, estimated by generalized-matching-law fits to the data within each set of conditions, varied directly with the response difference but inversely with the stimulus difference arranged between sets of conditions. Because variations in stimulus differences, response differences, and reinforcer differences did not have equivalent effects, these findings question the functional equivalence of the three terms of the discriminated operant: antecedent stimuli, behavior, and consequences. 相似文献
4.
A feed delivery system for the study of choice behavior in cows is described. Supportive data are provided for six dairy cows exposed to two-alternative, concurrent variable-interval schedules. 相似文献
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Bruce Hood Carel Ten Cate Lesley J. Rogers S. D. Healy Marc D. Hauser K. N. Laland N. S. Clayton 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1994,47(4):447-461
Campbell, B. A., Hayne, H., & Richardson, R. (Eds.) (1992). Attention and information processing in infants and adults. Perspectives from human and animal research. Hove: Lawrence Erlbaum Associates. Pp. viii + 360. ISBN 0-8058-0782-9. £54.95 (Hbk).
McFarland, D. (1993). Animal behaviour: Psychobiology, ethology and evolution (2nd ed.). Harlow: Longrnan Scientific and Technical. Pp. xiv + 585. ISBN 0-582-06721-9. £23.99 (Pbk).
Ward, J. P., & Hopkins, W.D. (Eds.) (1993). Primate laterality: Current behavioral evidence of primate asymmetries. New York/Berlin: Springer-Verlag. Pp. xii + 356. ISBN 0-387-97961-1 13-540-97961-1. £34.50 (Pbk).
Zentall, T. R. (Ed.). (1993). Animal cognition. A tribute to Donafd A. Riley. Hillsdale, NJ: Lawrence Erlbaum Associates, Inc. Pp. xiv + 369. ISBN 0-8058-1 184-2. £22.95 (Pbk); ISBN 0-8058-1 183-4. £53.50 (Hbk).
Roitblatt, H. L., Herman, L. M., & Nachtigall, P.E. (Eds.) (1993). Language and communication. Comparative perspectives. Hillsdale, NJ : Lawrence Erlbaum Associates, Inc. Pp. xvi + 502. ISBN 0-8058-0947-3. £26.95 (Pbk); ISBN 0-8058-0946-5. £59.95 (Hbk).
Bradshaw, J. L, & Rogers, L.J. (1993). The evolution of lateral asymmetries, language, roo1 use, and intellect. San Diego, CA: Academic Press. Pp. xiii + 463. ISBN 0-12-124560-8. £58.00 (Hbk).
Ten Cate, C., Slater, P. J. B., & Kruijt, J. P. (Eds.) (1993). Song learning and imprinting. An inquiry into mechanisms of behavioural development. Amsterdam: Netherlands Zoology Society. Pp. 234. £13.00 (Pbk). 相似文献
McFarland, D. (1993). Animal behaviour: Psychobiology, ethology and evolution (2nd ed.). Harlow: Longrnan Scientific and Technical. Pp. xiv + 585. ISBN 0-582-06721-9. £23.99 (Pbk).
Ward, J. P., & Hopkins, W.D. (Eds.) (1993). Primate laterality: Current behavioral evidence of primate asymmetries. New York/Berlin: Springer-Verlag. Pp. xii + 356. ISBN 0-387-97961-1 13-540-97961-1. £34.50 (Pbk).
Zentall, T. R. (Ed.). (1993). Animal cognition. A tribute to Donafd A. Riley. Hillsdale, NJ: Lawrence Erlbaum Associates, Inc. Pp. xiv + 369. ISBN 0-8058-1 184-2. £22.95 (Pbk); ISBN 0-8058-1 183-4. £53.50 (Hbk).
Roitblatt, H. L., Herman, L. M., & Nachtigall, P.E. (Eds.) (1993). Language and communication. Comparative perspectives. Hillsdale, NJ : Lawrence Erlbaum Associates, Inc. Pp. xvi + 502. ISBN 0-8058-0947-3. £26.95 (Pbk); ISBN 0-8058-0946-5. £59.95 (Hbk).
Bradshaw, J. L, & Rogers, L.J. (1993). The evolution of lateral asymmetries, language, roo1 use, and intellect. San Diego, CA: Academic Press. Pp. xiii + 463. ISBN 0-12-124560-8. £58.00 (Hbk).
Ten Cate, C., Slater, P. J. B., & Kruijt, J. P. (Eds.) (1993). Song learning and imprinting. An inquiry into mechanisms of behavioural development. Amsterdam: Netherlands Zoology Society. Pp. 234. £13.00 (Pbk). 相似文献
6.
Vocal tract resonances, called formants, are the most important parameters in human speech production and perception. They
encode linguistic meaning and have been shown to be perceived by a wide range of species. Songbirds are also sensitive to
different formant patterns in human speech. They can categorize words differing only in their vowels based on the formant
patterns independent of speaker identity in a way comparable to humans. These results indicate that speech perception mechanisms
are more similar between songbirds and humans than realized before. One of the major questions regarding formant perception
concerns the weighting of different formants in the speech signal (“acoustic cue weighting”) and whether this process is unique
to humans. Using an operant Go/NoGo design, we trained zebra finches to discriminate syllables, whose vowels differed in their
first three formants. When subsequently tested with novel vowels, similar in either their first formant or their second and
third formants to the familiar vowels, similarity in the higher formants was weighted much more strongly than similarity in
the lower formant. Thus, zebra finches indeed exhibit a cue weighting bias. Interestingly, we also found that Dutch speakers
when tested with the same paradigm exhibit the same cue weighting bias. This, together with earlier findings, supports the
hypothesis that human speech evolution might have exploited general properties of the vertebrate auditory system. 相似文献
7.
Educational inequalities may be derived from differential teacher expectations toward students from different backgrounds. Such expectations may be associated with stereotypical beliefs and attitudes, which guide behavior and judgments. Although ample research is available concerning differential teacher attitudes based on student ethnicity, few studies have considered the effect of the educational level of the parents. The aim of the current study was to investigate teachers’ implicit and explicit attitudes toward students with differentially educated parents. Implicit attitudes were measured using an implicit association task (IAT). The first name of the student was used as a proxy for the educational level of parents, whereby we created separate versions for boys and girls. Participants were randomly divided in two groups, whereby the first group completed the IAT-boys version and the other group the IAT-girls version. Explicit attitudes were measured using a questionnaire. Participants indicated positive implicit attitudes toward students with highly educated parents, independent of the gender of the student. Teachers did not express differential explicit beliefs regarding the learning and social behaviors of students based on the educational level of the parents, and their expectations concerning the motivation and ambitions or educational chances of these students were neutral. The dissociation between implicit and explicit attitudes may be an indication of the social sensitivity of the relationship between students’ social background and educational achievements and opportunities. Especially implicit attitudes may account for differences in teacher behaviors toward different groups of students and in turn their educational opportunities, and could therefore partly account for consistent findings of educational inequalities based on the social status of families. 相似文献
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A questionnaire study of 229 high-school students examined the relationship between sex role orientation and various dimensions of self-esteem. The results provide strong support for the masculinity model self-esteem, especially for females. Multivariate analyses of variance revealed the following: (a) females perceived themselves to be significantly more socially competent than males; (b) males perceived themselves to be more physically competent than females; (c) adolescents high on masculinity perceived themselves to be significantly more socially competent, physically competent, and to have higher general self-esteem than those low on masculinity; (d) males and females high on masculinity perceived themselves to be significantly more physically competent and to have higher general self-esteem than females low on masculinity, although males low on masculinity did not differ significantly from any of the other interaction groups. Regression analyses by gender revealed the following: (a) the contribution of masculinity to social competence was much greater for females than for males, (b) the contribution of masculinity to physical competence was much greater for females than for males, and (c) the contribution of masculinity to general self-esteem was much greater for females than for males. In summary, for males, gender may override the impact of sex role orientation, while among females the impact of sex role orientation may be accentuated. 相似文献