Classically conditioned heart rate and respiratory-motor activity in newborn and neonatal pygmy goats     

Robert D. Fitzgerald  David L. Francisco  James Metcalfe  Maralee S. Lawson 《Learning & behavior》1984,12(2):217-222

Classical discrimination conditioning of heart rate (HR) and respiratory-motor (RM) activity was examined in 16 newborn (average age = 1 day) and 8 neonatal (average age = 2 weeks) pygmy goats over 4 days of conditioning involving an electric shock US and auditory CSs. On the 4th day, one-half of the animals in each group received a low to moderate dose of ethanol to test the resistance of the CRs to drug effects. Discriminated conditioning of RM activity but not HR occurred in the newborn group, indicating an absence of close coupling between skeletal-motor activity and HR at this early age. While the newborn group failed to show recognizable HR reactions to the CSs during the 4 days of testing, it did show a long-latency brady-cardia UR beginning at 2 days of age that may have been secondary to baroreceptor reflex actions. The neonatal group displayed conditioning of both HR and RM activity. The similar latencies of the two types of CRs during the CS suggested that they may have been related to each other. However, the fact that the RM CR developed a day before the HR CR, combined with the observation that ethanol modified the HR CR but not the RM CR, supports the view that there was considerable independence between the two types of CRs.  相似文献   

A professor realizes the potential poison of Ivy     

David F. Machell Ed.D. 《Innovative Higher Education》1991,16(2):173-185

This clinical treatise discusses this author's concept of “professorial melancholia,” a progressive emotional process characterized by the negating of a university professor's professional motivation, positive attitudinal focus, and adequate personal self-esteem.  相似文献   

Measurement and assessment in Education‐‐The B.Ed. Psychology Practical     

John Murrell  David Bruce 《Cambridge Journal of Education》1971,1(3):130-136

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Göttingen in retrospect     

Robert H. Billigmeier  David Forman 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1975,21(2):217-230

Participant assessment is one of the processes which can be used to evaluate the success of educational exchange programs. This study was conducted in 1972 with University of California students who attended the University of Göttingen, Federal Republic of Germany, during the 1965–66 academic year. Participants were asked about their subsequent use of language, as well as their assessment of the academic, intellectual, personal, social and cultural dimensions of the program. This paper reports the results of the Göttingen questionnaire and, hopefully, contributes to a better understanding of the kinds of enduring student benefits that can result from an educational experience abroad.  相似文献   

Assessment of the effectiveness of the studio format in introductory undergraduate biology          下载免费PDF全文

Montelone BA  Rintoul DA  Williams LG 《CBE life sciences education》2008,7(2):234-242

Kansas State University converted its introductory biology course, previously taught as an audio-tutorial (A-T), to a studio format in 1997. We share with others information about the process involved and present assessment data for the studio format course that address 1) student exam performance in A-T and studio; 2) student course grades in A-T and studio; 3) student and instructor perceptions and attitudes for A-T and studio; 4) student performance in subsequent biology courses for A-T and studio; and 5) gains in student learning for the studio course and other traditional lecture/lab courses. Collectively, these measures demonstrate that the studio format is as effective as or more effective (for some measures) than the A-T approach and traditional approaches in providing an effective learning environment. We discuss the issues involved in comparing course formats.  相似文献   

Faculty behavior in low-paradigm versus high-paradigm disciplines: A case study     

Dr. Mark E. Thompson  David A. Brewster 《Research in higher education》1978,8(2):169-175

The notion of academic disciplines being characterized as high- or low-paradigm technologies was developed by Lodahl and Gordon from Kuhn's concept of a paradigm. Using this concept, the voting pattern of high-paradigm faculty (chemistry, physics, mathematics, and engineering) was compared to low-paradigm faculty (sociology, political science, history, and education) concerning a controversial campus issue to liberalize curriculum choices for students. It was found that high-paradigm faculty were not willing to grant students more latitude to select courses for degree requirements, while low-paradigm faculty members were in favor of giving students more latitude to select academic courses for degree requirements. The unique aspect of this study is that faculty behavior, as described in an actual case study, corresponds to theoretical positions supported by questionnaire data.  相似文献   

The nature of discrimination learning in pigeons     

Pearce JM  Esber GR  George DN  Haselgrove M 《Learning & behavior》2008,36(3):188-199

The results from five experiments are considered in relation to two of Spence's (1937, 1938) proposals concerning discrimination learning. In Experiments 1 and 2, we investigated whether his ideas about the interaction between excitatory and inhibitory generalization gradients can be used to understand how animals solve a complex patterning discrimination. The results supported a development of his proposals as put forward by Pearce (1994), provided a modification was made to Pearce's rulefor determining the shape ofthe generalization gradient. In Experiments 3, 4, and 5, we examined whether animals would pay more attention to stimuli that are relevant, rather than irrelevant, to the solution of a discrimination. The results supported this proposal for stimuli comprising visual patterns, but not for those comprising plain colors. The results also indicated that change of attention was a consequence of preliminary receptor-exposure acts, as envisaged by Spence, and not of more central changes in attention.  相似文献   

Effects of memory reactivation treatments on postdiscrimination generalization performance in pigeons     

Thomas B. Moye  David R. Thomas 《Learning & behavior》1982,10(2):159-166

In Experiment 1, it was shown that generalization testing following successive discrimination training between two closely spaced wavelengths results in a sharp gradient with a peak of responding shifted from S+ so as to be further removed from S?. Testing after a 24-h delay resulted in a flatter gradient with greater peak (and area) shift. A 5-min pretest exposure to S+, reinforced or unreinforced, or to S? (unreinforced) reinstated immediate test performance; free reinforcement with no discriminative stimulus present had no such effect. Experiment 2 replicated the flattening of generalization gradients and enhanced peak shift in delayed testing. Free feeding in a pretest treatment with a distinctive food uniquely associated with the wavelength discrimination problem failed to reinstate immediate test performance. Experiment 3 tested the hypothesis that free feeding failed as a reactivation treatment because it did not engender keypecking. Subjects were trained to peck a vertical line stimulus before being given wavelength discrimination training. Again, the enhanced peak shift and greater flattening with delayed wavelength generalization testing was found. A pretest exposure to the vertical line stimulus elicited pecking but had no effect on subsequent wavelength generalization. Thus, only a reactivation treatment that included one of the discrimination training stimuli was effective in producing delayed test performance comparable to that obtained in an immediate test.  相似文献   

The Instrumentalisation of the Expressive in Education   总被引：1，自引：0，他引：1  

David Hartley 《British Journal of Educational Studies》2003,51(1):6-19

There is a resurgence of matters emotional in education. The concept of 'emotional intelligence' is an example. The effective school seems set to become the affective school. Alongside the discourse of instrumental rationality, which is associated with the effective schools movement, is emerging one which speaks of the emotions and creativity. Some possible explanations of this emerging affective tendency are considered. The argument is that a greater emphasis on both the emotions and on creativity can be regarded as functional for the economy. That is, it facilitates production, in both the high–tech and in the high–touch modes of economic activity. And it 'produces' consumers (in that pupils are would–be consumers) who are emotionally aware and creative in their quests to construct an identity. In sum, the expressive seems set to be managed for instrumental purposes.  相似文献   

Financing at the leading 100 research universities: A study of financial dependency,concentration, and related institutional characteristics     

Marilyn McCoy  Jack Krakower  David Makowski 《Research in higher education》1982,16(4):323-352

This paper presents results of a National Science Foundation sponsored study to examine the financing of the leading 100 research universities. The study examines the changing dependence of these institutions on the federal government for overall financial support, the shifts in the concentration of federal funding to and within higher education, and the various programmatic and resource characteristics of these leading research institutions. The study covers five fiscal periods, 1975 through 1979.Presented at the Twenty First Annual Forum of The Association for Institutional Research, Minneapolis, May 1981.  相似文献