Christian Dongo Hoyos - Academia.edu (original) (raw)
Papers by Christian Dongo Hoyos
Cognitive Science, 2016
Recent studies report a striking decline in children’s ability to notice same-different relations... more Recent studies report a striking decline in children’s ability to notice same-different relations around age 3 (Walker et al., 2015). We propose that such a decline results from an object focus related to children’s avid noun-learning. To test this, we examine children’s performance on a classic relational task – the relational match-to-sample task (RMTS). Prior work has shown that 4-year-olds can pass this task (Christie & Gentner, 2014). However, if nominal language induces an object focus, their performance should be disrupted by a noun-labeling pretask. In two experiments, 4-year-olds either labeled objects or actions in a naming pretask. Then they completed the RMTS task. Consistent with the noun-focus explanation, the object-naming group failed the RMTS task, whereas the action-naming group and a control group both succeeded. This suggests that nominal language can lead to an object focus, and that this could explain the temporary decline in children’s relational processing.
Analogical comparison has been found to promote learning across many conceptual domains. Here, we... more Analogical comparison has been found to promote learning across many conceptual domains. Here, we ask whether this mechanism can facilitate children’s understanding of others’ mental states. In Experiment 1, children carried out comparisons between characters’ thoughts and reality and between characters with true beliefs vs. those with false beliefs. Children given this training improved from preto post-test. In Experiment 2, we used a more minimal comparison technique. Children saw a series of three stories involving true or false beliefs. There were two betweensubjects conditions that either facilitated (High Alignability) or impeded (Low Alignability) comparison across stories. We found that children made more gains from preto post-test in the High Alignability condition than in the Low Alignability condition. We also found effects of production of mental state verbs, as assessed in an Elicitation Task. These results provide evidence for the role of analogical comparison in theor...
Psychonomic Bulletin & Review, 2017
Generating explanations can be highly effective in promoting learning in both adults and children... more Generating explanations can be highly effective in promoting learning in both adults and children. Our interest is in the mechanisms that underlie this effect and in whether and how they operate in early learning. In adult reasoning, explanation may call on many subprocesses-including comparison, counterfactual reasoning, and reasoning by exclusion; but it is unlikely that all these processes are available to young children. We propose that one process that may serve both children and adults is comparison. In this study, we asked whether children would use the results of a comparison experience when asked to explain why a model skyscraper was stable. We focused on a challenging principle-that diagonal cross-bracing lends stability to physical structures (Gentner et al., Cognitive Science, 40, 224-240, 2016). Six-year-olds either received no training or interacted with model skyscrapers in one of three different conditions, designed to vary in their potential to invite and support comparison. In the Single Model condition, children interacted with a single braced model. In the comparison conditions (Low Alignability and High Alignability), children compared braced and unbraced models. Following experience with the models, children were asked to explain why the braced model was stable. They then received two transfer tasks. We found that children who received highly alignable pairs were most likely to (a) produce brace-based explanations and (b) transfer the brace principle to a dissimilar context. This provides evidence that children can benefit from analogical comparison in generating explanations and also suggests limitations on this ability.
Cognitive Science, 2016
Recent studies report a striking decline in children’s ability to notice same-different relations... more Recent studies report a striking decline in children’s ability to notice same-different relations around age 3 (Walker et al., 2015). We propose that such a decline results from an object focus related to children’s avid noun-learning. To test this, we examine children’s performance on a classic relational task – the relational match-to-sample task (RMTS). Prior work has shown that 4-year-olds can pass this task (Christie & Gentner, 2014). However, if nominal language induces an object focus, their performance should be disrupted by a noun-labeling pretask. In two experiments, 4-year-olds either labeled objects or actions in a naming pretask. Then they completed the RMTS task. Consistent with the noun-focus explanation, the object-naming group failed the RMTS task, whereas the action-naming group and a control group both succeeded. This suggests that nominal language can lead to an object focus, and that this could explain the temporary decline in children’s relational processing.
Analogical comparison has been found to promote learning across many conceptual domains. Here, we... more Analogical comparison has been found to promote learning across many conceptual domains. Here, we ask whether this mechanism can facilitate children’s understanding of others’ mental states. In Experiment 1, children carried out comparisons between characters’ thoughts and reality and between characters with true beliefs vs. those with false beliefs. Children given this training improved from preto post-test. In Experiment 2, we used a more minimal comparison technique. Children saw a series of three stories involving true or false beliefs. There were two betweensubjects conditions that either facilitated (High Alignability) or impeded (Low Alignability) comparison across stories. We found that children made more gains from preto post-test in the High Alignability condition than in the Low Alignability condition. We also found effects of production of mental state verbs, as assessed in an Elicitation Task. These results provide evidence for the role of analogical comparison in theor...
Psychonomic Bulletin & Review, 2017
Generating explanations can be highly effective in promoting learning in both adults and children... more Generating explanations can be highly effective in promoting learning in both adults and children. Our interest is in the mechanisms that underlie this effect and in whether and how they operate in early learning. In adult reasoning, explanation may call on many subprocesses-including comparison, counterfactual reasoning, and reasoning by exclusion; but it is unlikely that all these processes are available to young children. We propose that one process that may serve both children and adults is comparison. In this study, we asked whether children would use the results of a comparison experience when asked to explain why a model skyscraper was stable. We focused on a challenging principle-that diagonal cross-bracing lends stability to physical structures (Gentner et al., Cognitive Science, 40, 224-240, 2016). Six-year-olds either received no training or interacted with model skyscrapers in one of three different conditions, designed to vary in their potential to invite and support comparison. In the Single Model condition, children interacted with a single braced model. In the comparison conditions (Low Alignability and High Alignability), children compared braced and unbraced models. Following experience with the models, children were asked to explain why the braced model was stable. They then received two transfer tasks. We found that children who received highly alignable pairs were most likely to (a) produce brace-based explanations and (b) transfer the brace principle to a dissimilar context. This provides evidence that children can benefit from analogical comparison in generating explanations and also suggests limitations on this ability.