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1.
Several studies on age-related cognitive decline in dogs involve laboratory dogs and prolonged training. We developed two spatial tasks that required a single 1-h session. We tested 107 medium-large sized dogs: “young” (N=41, aged 2.5–6.5 years) and “old” (N=66, aged 8–14.5 years). Our results indicated that, in a discrimination learning task and in a reversal learning task, young dogs learned significantly faster than the old dogs, indicating that these two tasks could successfully be used to investigate differences in spatial learning between young and old dogs. We also provide two novel findings. First, in the reversal learning, the dogs trained based on the location of stimuli learned faster than the dogs trained based on stimulus characteristics. Most old dogs did not learn the task within our cut-off of 50 trials. Training based on an object’s location is therefore more appropriate for reversal learning tasks. Second, the contrast between the response to the positive and negative stimuli was narrower in old dogs, compared to young dogs, during the reversal learning task, as well as the cognitive bias test. This measure favors comparability between tasks and between studies. Following the cognitive bias test, we could not find any indication of differences in the positive and negative expectations between young and old dogs. Taken together, these findings do not support the hypothesis that old dogs have more negative expectations than young dogs and the use of the cognitive bias test in older dogs requires further investigation.  相似文献   

2.
The aim of this study is to compare the role of the tutor in an online and a face‐to‐face problem‐based learning (PBL) session to shed light on potential differences of the tutor role in both settings. In this practice‐based study we compared the two groups with the same tutor undertaking the same module. Students completed questionnaires about tutor performance, student characteristics and the module. Marks on the end‐of‐module test were analysed. The tutor was interviewed about his expectations and experiences. One session of each group was recorded and analysed qualitatively. Results show tutor tasks appeared to be comparable in both settings with regard to “content and pedagogical content knowledge,” “group dynamics,” “process instruction” and “intermediary between faculty and students.” The face‐to‐face group rated tutor performance lower than the online students. Students and tutor identified the absence of nonverbal cues as a limitation of online PBL. In online sessions the tutor additionally provided technical support and moderated the chat box. It is recommended to involve an extra person in online sessions who is responsible for technical issues. This person could also check the chat box for messages of students. Future research should focus on the necessity of an extra tutor training for online sessions.  相似文献   

3.
This experiment evaluated whether 2-week-delayed maintenance of a powerful strategy could be produced by instruction that included opportunities to compare performance produced by the strategy with performance not mediated by the technique (and thus, less adequate performance). During Session 1, adults in five conditions were told about two strategies for learning vocabulary; one a little known but very powerful method (mnemonic-keyword method); and the other, familiar to adults but not very powerful, rote repetition. One group was only told about these methods; a second also practiced the keyword method, but had no opportunity to compare keyword-mediated performance with other performance. In the remaining three instructed conditions, subjects were given comparison opportunities. They were permitted to compare keyword-mediated definition learning either with repetition-mediated performance, with uninstructed vocabulary learning, or with both. Session 2 (2-week-delayed) performances in these five instructed conditions were compared to performance in a control condition that received no Session 1 instruction. Statistically significant keyword-method maintenance was obtained only when there were Session 1 comparison opportunities, presumably because strategy potency was more evident in these conditions  相似文献   

4.
ABSTRACT

Objective: Memory loss affects a large proportion of older adults. Research indicates a positive association between memory training and better memory performance as people age. However, studies on specific memory training using an experimental design are limited. This study explored whether memory training has improved memory performance in a group of older adults.

Method: A convenience sample of 48 participants was recruited from two communities. Disregarding dropouts, this left 23 experimental (mean age = 65.4 ± 6.0, range = 56–80) and 19 control participants (mean age = 64.5 ± 4.9, range: 57–72). The intervention consisted of 60-min classes held on a weekly basis continuing for 8 weeks. The class session was held after a 1-h exercise class and before a 1-h session of cognitive games. The pre–post objective memory performances, including associative, list, text, place, grocery learning, and transfer-effect of daily event memory (ecology validity), were examined to determine whether the intervention was effective.

Results: Intragroup: With Wilcoxon test, the findings showed that the intervention of both the list and place learning had significant differences for the experimental group, but not for the control group. Intergroup: The main effects were found for the associative and text learning. The mixed design ANOVA indicated that there is an interaction (time x group) on the dependent variable of the place learning test. Daily events memory: We found within group that the pre–post differences were significant for the experimental group but not for the control group.

Conclusion: The study showed that memory training can help older adults to ameliorate memory loss problems and these findings deserve more attention.  相似文献   

5.
Regression surface analysis was used to examine relationships among adolescents’ perceptions of parents’ support for learning, adolescents’ aspirations and their status attainment as young adults. The young adults were classifed into four family groups, defined conjointly by family social status and by early family socialisation practices. Longitudinal data were collected from 334 Australians who were 11‐, 16‐ and 21‐years‐old during three surveys. Regression models which included terms to test for linear, interaction and curvilinear associations among the variables were examined within each family group. The results suggested that children's family environments may be considered to act as critical underlying contexts for the formation of adolescents’ perceptions and aspirations of young adults’ status attainment.  相似文献   

6.
Fourteen science high school students participated in this study, which investigated neural-network plasticity associated with hypothesis-generating and hypothesis-understanding in learning. The students were divided into two groups and participated in either hypothesis-generating or hypothesis-understanding type learning programs, which were composed of 12 topics taught over a 12-week period. To measure change in student competence and brain networks, a paper & pencil test and an fMRI scanning session were administered before and after the training programs. Unlike the hypothesis-understanding group, a before and after training comparison for the hypothesis-generating group showed significantly strong changes in hypothesis explanation quotients and functional brain connectivity associated with hypothesis-generating. However, for the hypothesis-understanding group, the brain network related to hypothesis-understanding significantly strengthened, not from hypothesis-generating type learning, but from hypothesis-understanding type learning. These findings suggest that for hypothesis-generating and hypothesis-understanding there are at least two specialized brain network systems or processes at work in the brain. Furthermore, hypothesis-generating competence could be developed by appropriate training programs such as teaching by way of active hypothesis generation rather than present passive expository teaching practices.  相似文献   

7.
Behavioral studies on bilingual learning have revealed cognitive costs (lower accuracy and/or higher processing time) when the language of application differs from the language of learning. The aim of this functional magnetic resonance imaging (fMRI) study was to provide insights into the cognitive underpinnings of these costs (so‐called language‐switching costs) in mathematics. Twenty‐nine bilingual adults underwent a 4‐day arithmetic training in one language, followed by an fMRI test session in which they had to solve the trained problems in both languages. Language‐switching costs were accompanied by increased activation in areas associated with magnitude processing (intraparietal sulcus), visuo‐spatial imagery (precuneus), numerical stimulus recognition (fusiform gyrus) and executive functions (frontal areas). These findings suggest that language‐switching costs in arithmetic are due to additional numerical information processing. Bilingual education programs need to take these findings into account to reduce language‐switching costs in order to fully exploit the potential of bilingual learning.  相似文献   

8.

Two levels of training (100 vs. 500 trials) and two ages of rats (young and adult) were used in a developmental analysis of the relationship between response strength and the effects of punishment. The apparatus was a Y maze with three discriminably different arms. After 100 or 500 reinforced trials, subjects were shocked each time they responded in one arm. The recovery sessions followed the punishment session. Results from the punishment day indicated that: (a) young rats received a greater amount of shock, and (b) additional training increased the amount of shock received by the young but decreased it in the adults. The recovery data showed that: (a) the suppressive effects of punishment were greater for the adults than for the young, and (b) the recovery scores were not influenced by degree of overtraining. The Age by Overtraining interaction suggested that the relationship between response strength and punishment is age dependent. The age differences found with the amount-of-shock and recovery measures provided additional support for the position that younger rats are less competent than adult rats in inhibiting responses.

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9.
In Experiment 1, six groups of pigeons (n=8) were tested for wavelength generalization either immediately or 24 h after learning a successive discrimination, with 550 nm reinforced and a black vertical line extinguished. The groups differed in the stimulus present during single stimulus pretraining, which was 550 nm (pretrain S+), the vertical Une (pretrain S?), or a neutral dim white light (pretrain Sn), respectively. The three immediate generalization gradients were steep and indistinguishable, reflecting only the immediately preceding discrimination training condition. The three delay gradients were flatter, with the flattening particularly marked in the pretrain S? group. This was interpreted as proactive interference (PI) resulting from the memory that both the 550-nm and the line stimuli had previously been reinforced. In Experiment 2, two (TD) groups of pigeons (n=16) were given single stimulus training with a 555-nm keylight followed by eight sessions of discrimination training with two line angles, then one session of non-differential (ND) training with the same two lines, and then a wavelength generalization test either immediately or after a 24-h delay. Two other (hold) groups (n=16) received similar training, except for the TD Une angle training sessions, in these hold groups, the wavelength gradient was flatter in a delayed test; in the TD groups it was steeper, indicating PI from the prior TD training. These two experiments suggest that the “attentional sets,” which purportedly result from TD and ND training, may fruitfully be viewed as target memories subject to the principles of interference theory.  相似文献   

10.
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11.
This study is an experimental test of the hypothesis that “emotionally charged” words will result in greater learning as measured by tests of “recall” and “printed‐word recognition” than words that are judged to be emotionally “neutral”.

Ten third‐grade subjects were pre‐tested on “printed‐word recognition” of ten words judged by two clinical psychologists to be “emotionally charged” and similarly pre‐tested on ten words judged to be emotionally “neutral.” After equal exposure to both “neutral” and “emotionally charged” words on four successive teaching days, subjects were post‐tested for “recall” and “printed‐word recognition” five days after the last teaching session.

The results strongly indicate for both the “recall” and “printed‐word recognition” that there is a significantly greater retention of the “emotionally charged” words over the “neutral” words. Despite the fact that a significantly greater number of “neutral” words was recognized in print at the outset of the study, the final performance level for “printed‐word recognition” for both the “emotionally charged” and “neutral” words is identical.

The major implications of the results obtained in this study is that the content of reading materials and the methods for teaching them must be revised so that reading deals with events, ideas, and feelings which are emotionally significant to the child, A personally relevant reading program will not only facilitate the task of learning to read, but will capture and explore the feelings and emotions of each child, as well.  相似文献   


12.
Recognition of anatomical landmarks in live animals (and humans) is key for clinical practice, but students often find it difficult to translate knowledge from dissection‐based anatomy onto the live animal and struggle to acquire this vital skill. The purpose of this study was to create and evaluate the use of an equine anatomy rug (“Anato‐Rug”) depicting topographical anatomy and key areas of lung, heart, and gastrointestinal auscultation, which could be used together with a live horse to aid learning of “live animal” anatomy. Over the course of 2 weeks, 38 third year veterinary students were randomly allocated into an experimental group, revising topographical anatomy from the “Anato‐Rug,” or a control group, learning topographical anatomy from a textbook. Immediately post activity, both groups underwent a test on live anatomy knowledge and were retested 1 week later. Both groups then completed a questionnaire to ascertain their perceptions of their learning experiences. Results showed that the experimental groups scored significantly higher than the control group at the first testing session, experienced more enjoyment during the activity and gained more confidence in identifying anatomical landmarks than the control group. There was not a significant difference in scores between groups at the second testing session. The findings indicate that the anatomy rug is an effective learning tool that aids understanding, confidence, and enjoyment in learning equine thorax and abdominal anatomy; however it was not better than traditional methods with regards to longer term memory recall. Anat SciEduc. © 2012 American Association of Anatomists.  相似文献   

13.
This pilot study investigated how a brief professional development session on the science of learning impacted teachers' attributions of usefulness to both scientific and performative concepts about teaching. Ratings were collected from teachers attending five events across the United Kingdom (N = 585) before and after receiving a 90‐min training session. Initial ratings of scientific concepts were positively correlated with age, while initial ratings of performative concepts were negatively correlated with years of experience. Immediately following professional development, the value teachers attributed to scientific concepts for understanding their practice increased, while their valuing of performative concepts decreased. A follow‐up study with a subsample (N = 153) revealed the impact was reduced but persisted 6–12 weeks later. Results are discussed in terms of the potential for a scientific understanding of learning to empower educators as expert professionals.  相似文献   

14.
Motor skill tasks provide unique opportunities to examine the impact of teachers' feedback on learners’ performance, as the quality and quantity of motor behavior can be objectively assessed during the practice session (online-gains) and afterwards (delayed, offline-gains). We tested the learning and overnight retention of a newly instructed movement sequence in young healthy adults in three conditions of teacher-learner interaction, determined by the feedback afforded by the teacher: Indifferent-minimal (IM), General-encouragement (GE), Positive-social-comparison (PSC). All three conditions resulted in robust within-session gains in speed with no loss of accuracy. However, overnight, most trainees in the GE and PSC groups, but not in the IM group, expressed additional delayed gains. PSC group also exhibited feedback-induced increase in positive mood, which was correlated with their delayed gains. These results indicate that teacher-learner interactions during the learning session can affect long-term skill by modulating memory consolidation processes, even when within-session gains are unaffected.  相似文献   

15.
This article is a combined result of a three years research project on low‐skilled learners’ experiences as participants of various kinds of adult training and education in Denmark, and the findings of a three years research consortium on workplace learning, summing up and generalizing our various findings as to how low‐skilled adults function in relation to participation in training and education activities, how they feel about it, what is important to them, and consequently what works in practice in relation to this very important but often neglected group of adult learners.  相似文献   

16.
This paper examines young workers’ beginning engagement in learning through work, placing it in the context of Australian policy on entry-level training. Eleven young people were followed through their first year of full-time work and the significant adults involved in their working and learning lives were also interviewed. The study demonstrates that the presence of a contract of training (an apprenticeship or traineeship) is a strong predictor of a young worker’s propensity to regard the workplace as a learning environment. However, unsatisfactory interactions with employment or training providers can create disillusionment with policy interventions that are meant to assist. Moreover, the habit of learning through work is not only a function of policy and training frameworks, but is also affected by individuals’ abilities to learn how to learn. The paper concludes by arguing that, for those young people starting work who are not in a contract of training, additional assistance may be required in order for them to continue the habit of lifelong learning in the new environment of work.  相似文献   

17.
Following training on a variable-interval food-reinforcement schedule, rats were exposed to three unsignaled shocks during each 30-min session. Although leverpressing was initially suppressed, responding was significantly accelerated following offset of the third shock, regardless of when in the session it occurred. Control sessions in which only two shocks were programmed, one early and one late, did not yield baseline acceleration. Evidence of “counting to three” was less obvious in subjects simultaneously exposed to a temporal autocontingency, that is, for which each shock also predicted a minimum 3-min safety period. The addition of a signal prior to each shock eliminated evidence of counting behavior altogether. We conclude that rats may be taught to count, but such behavior is highly unnatural and may be blocked or overshadowed by more salient sources of information.  相似文献   

18.
An assessment‐oriented design‐based research model was applied to existing inquiry‐oriented multimedia programs in astronomy, biology, and ecology. Building on emerging situative theories of assessment, the model extends prevailing views of formative assessment for learning by embedding “discursive” formative assessment more directly into the curriculum. Three twenty‐hour curricula were designed and aligned to content standards, and three levels of assessments were developed and used to assess and enhance learning for each curriculum. These assessments included three or four informal “activity‐oriented” quizzes and discursive formative feedback rubrics supporting collective discourse, a “curriculum‐oriented” examination of individual conceptual understanding, and a “standards‐oriented” test measuring aggregated achievement of targeted standards. After two design‐research cycles, worthwhile scientific argumentation and statistically significant gains were attained for two of the three packages on the exam and test. Achievement gains were comparable to or larger than those of students in comparison classrooms. Many existing innovations could be enhanced and evaluated in this fashion; designing these strategies directly into innovations could have an even greater impact on discourse, understanding, and achievement. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 1240–1270, 2012  相似文献   

19.
This paper reports on research conducted over a two‐year period in a large Educational Psychology Service (EPS) in England. Researchers were keen to ascertain the views of young people and EPS members about young people being directly involved in educational decision‐making and how their genuine involvement in such decision‐making might be best achieved. Focus groups were employed as a means of gathering data which were analysed using Content Analysis. Young people and EPS members ultimately identified “culture”, “attitudes”, “environment”, and “systems” as being the most important factors in ensuring the genuine involvement of young people in decision‐making.  相似文献   

20.
Theories of psychology and mathematics education recommend two instructional approaches to develop students’ mental representations of number: The “exact” approach focuses on the development of exact representations of organized dot patterns; the “approximate” approach focuses on the approximate representation of analogue magnitudes. This study provides for the first time empirical evidence for the specific effects of these approaches by implementing them in a highly controlled learning environment. 147 first-graders were randomly assigned to one of three intervention groups that used an “exact”, an “approximate”, or both versions of the same computer game, or to a control group. Performance on tasks requiring exact or approximate number processing as well as achievement in arithmetic were measured before and after the intervention. Results show that performance improved on tasks related to the exact or approximate number aspect trained, but there was no crossover effect. Achievement in arithmetic increased for the experimental groups and tended to be higher after only exact or only approximate training. Implications for teaching and learning in the classroom are discussed.  相似文献   

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