Open Mind
@openmindjournal.bsky.social
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75 posts
Cognitive science journal published by MIT Press.
https://direct.mit.edu/opmi
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Open Mind
@openmindjournal.bsky.social
· Aug 23
Merits of Curiosity: A Simulation Study
Abstract‘Why are we curious?’ has been among the central puzzles of neuroscience and psychology in the past decades. A popular hypothesis is that curiosity is driven by intrinsically generated reward signals, which have evolved to support survival in complex environments. To formalize and test this hypothesis, we need to understand the enigmatic relationship between (i) intrinsic rewards (as drives of curiosity), (ii) optimality conditions (as objectives of curiosity), and (iii) environment structures. Here, we demystify this relationship through a systematic simulation study. First, we propose an algorithm to generate environments that capture key abstract features of different real-world situations. Then, we simulate artificial agents that explore these environments by seeking one of six representative intrinsic rewards: novelty, surprise, information gain, empowerment, maximum occupancy principle, and successor-predecessor intrinsic exploration. We evaluate the exploration performance of these simulated agents regarding three potential objectives of curiosity: state discovery, model accuracy, and uniform state visitation. Our results show that the comparative performance of each intrinsic reward is highly dependent on the environmental features and the curiosity objective; this indicates that ‘optimality’ in top-down theories of curiosity needs a precise formulation of assumptions. Nevertheless, we found that agents seeking a combination of novelty and information gain always achieve a close-to-optimal performance on objectives of curiosity as well as in collecting extrinsic rewards. This suggests that novelty and information gain are two principal axes of curiosity-driven behavior. These results pave the way for the further development of computational models of curiosity and the design of theory-informed experimental paradigms.
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Open Mind
@openmindjournal.bsky.social
· Aug 23
Already Perfect: Language Users Access the Pragmatic Meanings of Conditionals First
AbstractConditional statements often have two interpretations. For instance, the statement, “If you mow the lawn, you will receive $5”, might be understood to mean that mowing the lawn is just one possible way to earn $5 or, more strongly, that mowing the lawn is the only way one can receive $5 – an interpretation sometimes called Conditional Perfection. We investigated how people arrive at “perfected” interpretations of conditional statements: whether they initially consider a statement's literal meaning and then perfect it or begin with a perfected interpretation and revert to the weaker meaning only when necessary. Reaction time data from Experiment 1 supports the latter sequence, as evidenced by the longer time required to arrive at literal interpretations than perfected ones. Additionally, in Experiment 2, we found that participants under cognitive load were more likely to perfect conditional statements relative to participants not under load, again suggesting that people begin with a perfected meaning that is optionally canceled with effort.
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Open Mind
@openmindjournal.bsky.social
· Aug 23
An Item Response Theory Analysis of the “Reading the Mind in the Eyes Test” in an Argentine Sample
AbstractIn the field of affective neuroscience, the “Reading the Mind in the Eyes Test” (RMET) is regarded as the gold standard for assessing Theory of Mind (ToM) in general and clinical populations. Despite its widespread use and acceptance, there has been no comprehensive evaluation of the psychometric properties of the Spanish version of the test, particularly concerning its internal structure and dimensionality, especially with regard to the application of Item Response Theory (IRT). Therefore, the aim of this study is to examine the items of the Argentine version of the RMET through an IRT approach to explore its effectiveness in measuring ToM in neurotypical adult populations within Argentina. A sample of 899 adults from Buenos Aires, Argentina (34.3% men, 65.7% women) aged between 18 and 82 (M = 32.95, SD = 13.35) completed a sociodemographic questionnaire and the RMET. Based on a preliminary assessment of the data’s suitability for factor analysis, including inspection of item-level sampling adequacy, we analysed a reduced 13-item version of the test. While these items were consistent with a unidimensional structure, the main factor explained only 21.2% of the variance, and the factor loadings were relatively low. The analysis revealed weak and questionable evidence for the dimensionality of the construct, with retained items showing medium-low difficulty and moderate discrimination. Additionally, the overall reliability estimates were insufficient. Therefore, the results of this study do not support the psychometric properties of the argentine version of RMET and contribute to increasing awareness of the critical need to thoroughly evaluate its validity and reliability.
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Open Mind
@openmindjournal.bsky.social
· Jul 19
The Expanded Natural History of Song Discography, A Global Corpus of Vocal Music
AbstractA comprehensive cognitive science requires broad sampling of human behavior to justify general inferences about the mind. For example, the field of psycholinguistics relies on a rich history of comparative study, with many available resources that systematically document many languages. Surprisingly, despite a longstanding interest in questions of universality and diversity, the psychology of music has few such resources. Here, we report the Expanded Natural History of Song Discography, an open-access corpus of vocal music (n = 1007 song excerpts), with accompanying metadata detailing each song’s region of origin, language (of 413 languages represented here), and one of 10 behavioral contexts (e.g., work, storytelling, mourning, lullaby, dance). The corpus is designed to sample both broadly, with a large cross-section of societies and languages; and deeply, with many songs representing three well-studied language families (Atlantic-Congo, Austronesian, and Indo-European). This design facilitates direct comparison of musical and vocal features across cultures, principled approaches to sampling stimuli for experiments, and evaluation of models of the cultural evolution of song. In this paper we describe the corpus and provide two proofs of concept, demonstrating its utility. We report (1) a conceptual replication of previous findings that the acoustical forms of songs are predictive of their behavioral contexts, including in previously unstudied contexts (e.g., children’s play songs); and (2) similarities in acoustic content of songs across cultures are predictable, in part, by the relatedness of those cultures.
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Open Mind
@openmindjournal.bsky.social
· Jul 19
When Success Is Surprising: Children’s Ability to Use Surprise to Infer Competence
AbstractHow do we learn who is good at what? Building on the idea that humans draw rich inferences from others’ emotional expressions, here we ask whether others’ surprised reactions to performance outcomes can elicit inferences about competence. Across three experiments, participants were asked to choose “who is better” in scenarios where two students performed identically on the same task but their teacher expressed surprise to only one of them. In Experiment 1 (n = 60, adults) and Experiment 2 (n = 90, 6- to 8-year-old children), participants’ responses were modulated by not only the students’ performance outcomes (success or failure) but also the teacher’s response to the outcomes (surprise or no surprise). Specifically, participants preferentially chose the student who did not elicit the teacher’s surprise as more competent when both students succeeded, but chose the student who elicited surprise when both failed. Experiment 3a (n = 150, 4- to 8-year-olds) replicated this pattern in 6- to 8-year-olds as a group—but not in 4- to 5-year-olds—with increasing robustness with age. Finally, this pattern was significantly reduced in Experiment 3b where the teacher’s surprise was directed at an irrelevant event rather than the student’s performance (n = 90, 6- to 8-year-olds). Taken together, these results suggest that even non-valenced emotional reactions to performance outcomes—being surprised at someone’s success or failure—can inform inferences about valenced qualities such as competence. More broadly, the current findings demonstrate that emotional expressions we observe in our daily lives can lead to nuanced yet consequential social judgments.
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