Errors in pigeons’ memory for number of events     

Angelo Santi  Chris Hope 《Learning & behavior》2001,29(3):208-220

In Experiment 1, pigeons were trained in a within-subjects design to discriminate sequences of light flashes (illumination of the feeder) that varied in number, but not in time (2f/4sec and 8f/4sec), and in time, but not in number (4f/2sec and 4f/8sec). Number samples required a response to one of two comparison dimensions (either color or line), whereas time samples required a response to the remaining comparison dimension. Delay testing revealed a significant choose-small bias following number samples and a significant choose-long bias following time samples. In Experiment 2, testing confirmed that in the absence of a sample, there was a bias to respond small to the number comparisons and long to the time comparisons. Additional tests indicated that the birds were discriminating time samples on the basis of the number of light flashes occurring during the last few seconds of the time samples, rather than on the basis of the total duration of the flash sequence. Consequently, the choose-long bias observed for time samples during delay testing was really a choose-small bias. In Experiment 3, the birds received baseline training with a 5-sec delay and were subsequently tested at shorter and longer delays. A choose-large bias occurred at delays shorter than the baseline training delay, whereas a choose-small bias was again observed at delays longer than the baseline delay. These findings provide additional empirical support for the conceptualizing of memory for number and time in terms of a common mechanism.  相似文献   

Alterations in the memory code for temporal events induced by differential outcome expectancies in pigeons     

Mary Jo Ducharme  Angelo Santi 《Learning & behavior》1993,21(1):73-81

The effect of differential outcome expectancies on memory for temporal and nontemporal information was examined. Pigeons were trained to match short (2-sec) and long (8-sec) sample durations to red and green comparison stimuli, and vertical and horizontal lines to vertical and horizontal comparison stimuli. In Experiment 1, one differential outcome (DO) group received food for correct choices on short-sample trials, whereas another received food for correct choices on long-sample trials. On line-orientation trials, half of each DO group received food for correct responses following vertical samples, whereas the other half received food for correct responses following horizontal samples. Overall retention was greater in the DO groups than in a nondifferential (NDO) group that received either food or no food for correct responses on a random half of all trials. Furthermore, although the NDO group displayed a choose-short bias for temporal samples, both DO groups displayed equivalent biases to select the comparison stimulus associated with food. In Experiment 2, differential outcome expectancies were extinguished off-baseline. Subsequently, in the first nondifferential outcome test session, the. DO groups performed less, accurately than the NDO group. These findings indicate that temporal samples are not retrospectively and analogically coded when they are differentially associated with food and no food. Instead, they are remembered in terms of the corresponding outcome expectancies.  相似文献   

Educational Justice and Occupational Mobility: The Role of Civic Commitment and of Imagination     

Francesca Gobbo 《The Urban Review》2017,49(3):420-442

In Italy, the exploration of, and debate on, problems of educational rights and justice are not subsumed under the comprehensive rubric of “Urban Education”. They are rather studied from disciplinary realms and approaches such as social education or intercultural education that aim to understand and respond to issues of pressing social, political and educational concerns relative to migration, educational inclusion of immigrants’ and minorities’ children, recognition of cultural diversities as teaching and learning resources, among others. In this article the intercultural perspective is focused on the Italian occupational minority of the fairground and circus people, whose intensely mobile way of life impacts on their children’s school attendance and learning, and on the schools’ capacity to elaborate effective educational paths also able to valorize those people’s cultural diversity. Three relevant “bottom up” projects are here presented that mean to positively answer the mismatch between the mobility of the attractionist students and the schooling curricula, the annual teaching schedule and the attendance requirements.  相似文献   

Effect of Cognitive Style on Topographical Learning Across Life Span: Insights From Normal Development     

Maddalena Boccia  Francesca Vecchione  Antonella Di Vita  Simonetta D'Amico  Cecilia Guariglia  Laura Piccardi 《Child development》2019,90(2):462-470

Notwithstanding its well-established role on high-demanding spatial navigation tasks during adulthood, the effect of field dependence–independence during the acquisition of spatial navigation skills is almost unknown. This study assessed for the first time the effect of field dependence–independence on topographical learning (TL) across the life span: 195 individuals, including 54 healthy young-adults (age-range = 20–30), 46 teenagers (age-range = 11–14), and 95 children (age-range = 6–9) participated in this study. Field dependence–independence interacted with age in predicting TL. Also during childhood higher field independence was associated with better performances but not later in the life, that is, during adolescence and adulthood. This result suggests that field dependence–independence may have a role in fostering the acquisition of TL.  相似文献   

Pigeons exhibit higher accuracy for chosen memory tests than for forced memory tests in duration matching-to-sample     

Adams A  Santi A 《Learning & behavior》2011,39(1):1-11

Following training to match 2- and 8-sec durations of feederlight to red and green comparisons with a 0-sec baseline delay, pigeons were allowed to choose to take a memory test or to escape the memory test. The effects of sample omission, increases in retention interval, and variation in trial spacing on selection of the escape option and accuracy were studied. During initial testing, escaping the test did not increase as the task became more difficult, and there was no difference in accuracy between chosen and forced memory tests. However, with extended training, accuracy for chosen tests was significantly greater than for forced tests. In addition, two pigeons exhibited higher accuracy on chosen tests than on forced tests at the short retention interval and greater escape rates at the long retention interval. These results have not been obtained in previous studies with pigeons when the choice to take the test or to escape the test is given before test stimuli are presented. It appears that task-specific methodological factors may determine whether a particular species will exhibit the two behavioral effects that were initially proposed as potentially indicative of metacognition.  相似文献   

The role of visuo-spatial abilities in recall of spatial descriptions: A mediation model     

Chiara Meneghetti  Rossana De Beni  Francesca Pazzaglia  Valerie Gyselinck 《Learning and individual differences》2011,21(6):719-723

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Design and validation of a novel learning tool, the "Anato-Rug," for teaching equine topographical anatomy     

Braid F  Williams SB  Weller R 《Anatomical sciences education》2012,5(5):256-263

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   

Progress monitoring: an integral part of instruction     

Kristi Santi  Sharon Vaughn 《Reading and writing》2007,20(6):535-537

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Differential outcome expectancies and directed forgetting effects in pigeons     

Angelo Santi 《Learning & behavior》1989,17(3):349-354

Pigeons were trained in a two-choice delayed matching-to-sample task with red and green hues. A brief postsample cue (a vertical or horizontal line) signaled whether the comparison stimuli would be presented or omitted on each trial. Comparison stimuli were always presented following the remember (R) cue, but never following the forget (F) cue or no-cue trials. One group of birds, the differential outcome (DO) group, received reinforcement with a probability of 1.0 for correct responses following one sample stimulus and a probability of 0.2 for correct responses following the other sample stimulus. The nondifferential outcome (NDO) group received reinforcement with a probability of 0.6 for correct responses to either stimulus. The effect of postsample cues was greater for the DO group than for the NDO group. Relative to the NDO group, the DO group displayed higher accuracy on R-cue trials and lower accuracy on F- and no-cue trials. Both tendencies contributed to the enhanced cue effectiveness obtained in the DO group. The results indicate that outcome expectancies are subject to maintenance rehearsal, which comes under the control of postsample R and F cues. They also suggest that maintenance rehearsal may be easier to sustain under DO conditions than under NDO conditions when a memory test is anticipated, but that it may be easier to terminate maintenance rehearsal under DO conditions when a memory test is not anticipated. The results are inconsistent with the assumption that the rehearsal of outcome expectancies is automatic.  相似文献   

Learning to read: Evidence on the distinction between decoding and comprehension skills     

Francesca Pazzaglia  Cesare Cornoldi  Patrizio Emanuele Tressoldi 《European Journal of Psychology of Education - EJPE》1993,8(3):247-258

The paper focuses on the importance of distinguishing between decoding and comprehension skills in reading. This distinction can also be applied to the study of precursors of reading and of the first phases of reading acquisition. The reconsideration of a 15-year research program shows evidence and implications of such a dissociation. In particular, the paper reviews psychometric research concerning reading performance in first and second grade, research on precursors of reading, the effects of early programs devoted to develop reading abilities. Decoding and comprehension reading components appear at least partially separated, related to different underlying cognitive abilities, differently sensitive to enrichment programs.  相似文献