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A Bayesian optimization approach for rapidly mapping residual network function in stroke. ...
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Predictive Neural Computations Support Spoken Word Recognition: Evidence from MEG and Competitor Priming. ...
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A Bayesian optimization approach for rapidly mapping residual network function in stroke.
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Predictive Neural Computations Support Spoken Word Recognition: Evidence from MEG and Competitor Priming.
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Rapid computations of spectrotemporal prediction error support perception of degraded speech. ...
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Chunking and redintegration in verbal short-term memory. ...
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Comparison of Frequency Transposition and Frequency Compression for People With Extensive Dead Regions in the Cochlea. ...
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Dynamic integration of conceptual information during learning.
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In: PloS one, vol 13, iss 11 (2018)
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Abstract:
The development and application of concepts is a critical component of cognition. Although concepts can be formed on the basis of simple perceptual or semantic features, conceptual representations can also capitalize on similarities across feature relationships. By representing these types of higher-order relationships, concepts can simplify the learning problem and facilitate decisions. Despite this, little is known about the neural mechanisms that support the construction and deployment of these kinds of higher-order concepts during learning. To address this question, we combined a carefully designed associative learning task with computational model-based functional magnetic resonance imaging (fMRI). Participants were scanned as they learned and made decisions about sixteen pairs of cues and associated outcomes. Associations were structured such that individual cues shared feature relationships, operationalized as shared patterns of cue pair-outcome associations. In order to capture the large number of possible conceptual representational structures that participants might employ and to evaluate how conceptual representations are used during learning, we leveraged a well-specified Bayesian computational model of category learning [1]. Behavioral and model-based results revealed that participants who displayed a tendency to link experiences in memory benefitted from faster learning rates, suggesting that the use of the conceptual structure in the task facilitated decisions about cue pair-outcome associations. Model-based fMRI analyses revealed that trial-by-trial integration of cue information into higher-order conceptual representations was supported by an anterior temporal (AT) network of regions previously implicated in representing complex conjunctions of features and meaning-based information.
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Keyword:
Adolescent; Adult; Bayes Theorem; Brain Mapping; Computer Simulation; Concept Formation; Female; General Science & Technology; Humans; Learning; Magnetic Resonance Imaging; Male; Memory; Young Adult
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URL: https://escholarship.org/uc/item/3sp9d253
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ИНТЕЛЛЕКТУАЛЬНЫЙ ФИЛЬТР ЭЛЕКТРОННЫХ СООБЩЕНИЙ ... : INTELLIGENT FILTER FOR THE ELECTRONIC MESSAGES ...
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Rational irrationality: modeling climate change belief polarization using bayesian networks
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Language phylogenies reveal expansion pulses and pauses in Pacific settlement
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In: Science (2015)
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A Bayesian framework for knowledge attribution: evidence from semantic integration.
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Forensic Speaker Recognition at the beginning of the twenty-first century - an overview and a demonstration
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In: Australian Journal of Forensic Sciences (2015)
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Strength of forensic speaker identification evidence: multispeaker formant- and cepstrum-based segmental discrimination with a Bayesian likelihood ratio as threshold
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In: Forensic Linguistics: The International Journal of Speech, Language and the Law (2015)
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Mapping the Origins and Expansion of the Indo-European Language Family
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In: Science (2015)
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Strength of forensic speaker identification evidence: multispeaker formant- and cepstrum-based segmental discrimination with a Bayesian likelihood ratio as threshold
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In: Forensic Linguistics: The International Journal of Speech, Language and the Law (2015)
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The Riddle of Tasmanian languages
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In: Royal Society of London. Proceedings B. Biological Sciences (2015)
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Forensic Speaker Recognition at the beginning of the twenty-first century - an overview and a demonstration
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In: Australian Journal of Forensic Sciences (2015)
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