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Bobrowicz K, Sahlström J, Thorstensson K, Nagy B, Psouni E. Generalizing solutions across functionally similar problems correlates with world knowledge and working memory in 2.5- to 4.5-year-olds. COGNITIVE DEVELOPMENT 2022. [DOI: 10.1016/j.cogdev.2022.101181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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2
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Learning and Representation of Hierarchical Concepts in Hippocampus and Prefrontal Cortex. J Neurosci 2021; 41:7675-7686. [PMID: 34330775 DOI: 10.1523/jneurosci.0657-21.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 07/02/2021] [Accepted: 07/08/2021] [Indexed: 11/21/2022] Open
Abstract
A key aspect of conceptual knowledge is that it can be flexibly applied at different levels of abstraction, implying a hierarchical organization. It is yet unclear how this hierarchical structure is acquired and represented in the brain. Here we investigate the computations underlying the acquisition and representation of the hierarchical structure of conceptual knowledge in the hippocampal-prefrontal system of 32 human participants (22 females). We assessed the hierarchical nature of learning during a novel tree-like categorization task via computational model comparisons. The winning model allowed to extract and quantify estimates for accumulation and updating of hierarchical compared with single-feature-based concepts from behavior. We find that mPFC tracks accumulation of hierarchical conceptual knowledge over time, and mPFC and hippocampus both support trial-to-trial updating. As a function of those learning parameters, mPFC and hippocampus further show connectivity changes to rostro-lateral PFC, which ultimately represented the hierarchical structure of the concept in the final stages of learning. Our results suggest that mPFC and hippocampus support the integration of accumulated evidence and instantaneous updates into hierarchical concept representations in rostro-lateral PFC.SIGNIFICANCE STATEMENT A hallmark of human cognition is the flexible use of conceptual knowledge at different levels of abstraction, ranging from a coarse category level to a fine-grained subcategory level. While previous work probed the representational geometry of long-term category knowledge, it is unclear how this hierarchical structure inherent to conceptual knowledge is acquired and represented. By combining a novel hierarchical concept learning task with computational modeling of categorization behavior and concurrent fMRI, we differentiate the roles of key concept learning regions in hippocampus and PFC in learning computations and the representation of a hierarchical category structure.
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Frausel RR, Richland LE, Levine SC, Goldin-Meadow S. Personal narrative as a 'breeding ground' for higher-order thinking talk in early parent-child interactions. Dev Psychol 2021; 57:519-534. [PMID: 34483346 DOI: 10.1037/dev0001166] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Personal narrative is decontextualized talk where individuals recount stories of personal experiences about past or future events. As an everyday discursive speech type, narrative potentially invites parents and children to explicitly link together, generalize from, and make inferences about representations-i.e., to engage in higher-order thinking talk (HOTT). Here we ask whether narratives in early parent-child interactions include proportionally more HOTT than other forms of everyday home language. Sixty-four children (31 girls; 36 White, 14 Black, 8 Hispanic, 6 mixed/other race) and their primary caregiver(s) (M income = $61,000) were recorded in 90-minute spontaneous home interactions every 4 months from 14-58 months. Speech was transcribed and coded for narrative and HOTT. We found that parents at all visits and children after 38 months used more HOTT in narrative than non-narrative, and more HOTT than expected by chance. At 38- and 50-months, we examined HOTT in a related but distinct form of decontextualized talk-pretend, or talk during imaginary episodes of interaction-as a control to test whether other forms of decontextualized talk also relate to HOTT. While pretend contained more HOTT than other (non-narrative/non-pretend) talk, it generally contained less HOTT than narrative. Additionally, unlike HOTT during narrative, the amount of HOTT during pretend did not exceed the amount expected by chance, suggesting narrative serves as a particularly rich 'breeding ground' for HOTT in parent-child interactions. These findings provide insight into the nature of narrative discourse, and suggest narrative potentially may be used as a lever to increase children's higher-order thinking.
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Affiliation(s)
- Rebecca R Frausel
- Department of Psychology, The University of Chicago.,Department of Comparative Human Development, The University of Chicago
| | | | - Susan C Levine
- Department of Psychology, The University of Chicago.,Department of Comparative Human Development, The University of Chicago
| | - Susan Goldin-Meadow
- Department of Psychology, The University of Chicago.,Department of Comparative Human Development, The University of Chicago
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Shukla A, Bapi RS. Numerical Magnitude Affects Accuracy but Not Precision of Temporal Judgments. Front Hum Neurosci 2021; 14:629702. [PMID: 33519406 PMCID: PMC7843367 DOI: 10.3389/fnhum.2020.629702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 12/23/2020] [Indexed: 11/24/2022] Open
Abstract
A Theory of Magnitude (ATOM) suggests that space, time, and quantities are processed through a generalized magnitude system. ATOM posits that task-irrelevant magnitudes interfere with the processing of task-relevant magnitudes as all the magnitudes are processed by a common system. Many behavioral and neuroimaging studies have found support in favor of a common magnitude processing system. However, it is largely unknown whether such cross-domain monotonic mapping arises from a change in the accuracy of the magnitude judgments or results from changes in precision of the processing of magnitude. Therefore, in the present study, we examined whether large numerical magnitude affects temporal accuracy or temporal precision, or both. In other words, whether numerical magnitudes change our temporal experience or simply bias duration judgments. The temporal discrimination (between comparison and standard duration) paradigm was used to present numerical magnitudes (“1,” “5,” and “9”) across varied durations. We estimated temporal accuracy (PSE) and precision (Weber ratio) for each numerical magnitude. The results revealed that temporal accuracy (PSE) for large (9) numerical magnitude was significantly lower than that of small (1) and identical (5) magnitudes. This implies that the temporal duration was overestimated for large (9) numerical magnitude compared to small (1) and identical (5) numerical magnitude, in line with ATOM’s prediction. However, no influence of numerical magnitude was observed on temporal precision (Weber ratio). The findings of the present study suggest that task-irrelevant numerical magnitude selectively affects the accuracy of processing of duration but not duration discrimination itself. Further, we argue that numerical magnitude may not directly affect temporal processing but could influence via attentional mechanisms.
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Affiliation(s)
- Anuj Shukla
- Cognitive Science Lab, Kohli Research Centre on Intelligent Systems, International Institute of Information Technology, Hyderabad, India
| | - Raju S Bapi
- Cognitive Science Lab, Kohli Research Centre on Intelligent Systems, International Institute of Information Technology, Hyderabad, India
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Frausel RR, Silvey C, Freeman C, Dowling N, Richland LE, Levine SC, Raudenbush S, Goldin-Meadow S. The origins of higher-order thinking lie in children's spontaneous talk across the pre-school years. Cognition 2020; 200:104274. [PMID: 32388140 DOI: 10.1016/j.cognition.2020.104274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 11/26/2022]
Abstract
Higher-order thinking is relational reasoning in which multiple representations are linked together, through inferences, comparisons, abstractions, and hierarchies. We examine the development of higher-order thinking in 64 preschool-aged children, observed from 14 to 58 months in naturalistic situations at home. We used children's spontaneous talk about and with relations (i.e., higher-order thinking talk, or HOTT) as a window onto their higher-order thinking skills. We find that surface HOTT, in which relations between representations are more immediate and easily perceptible, appears before-and is far more frequent than-structure HOTT, in which relations between representations are more abstract and less easy to perceive. Child-specific factors (including early vocabulary and gesture use, first-born status, and family income) predict differences in children's onset (i.e., age of acquisition) of HOTT and its trajectory of use across development. Although HOTT utterances tend to be longer and more syntactically complex than non-HOTT utterances, HOTT frequently appears in non-complex utterances, and a substantial proportion of children achieve complex utterance onset prior to the onset of HOTT. This finding suggests that complex language is neither necessary nor sufficient for HOTT to occur; other factors above and beyond complex linguistic skills are involved in the onset and use of higher-order thinking. Finally, we found that the trajectory of HOTT, particularly structure HOTT-but not complex utterances-during the preschool period predicts standardized outcome measures of inference and analogy skills in grade school, which underscores the crucial role that this kind of early talk plays for later outcomes.
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Affiliation(s)
| | | | - Cassie Freeman
- The University of Chicago, United States of America; The College Board, United States of America
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6
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Amso D, Salhi C, Badre D. The relationship between cognitive enrichment and cognitive control: A systematic investigation of environmental influences on development through socioeconomic status. Dev Psychobiol 2018; 61:159-178. [PMID: 30375651 DOI: 10.1002/dev.21794] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 09/11/2018] [Accepted: 09/11/2018] [Indexed: 12/22/2022]
Abstract
We measured the impact of socioeconomic status (SES) on cognitive processes. We examined cognitive control, specifically working memory (WM), in a sample of N = 141 7- to 17-year-olds using rule-guided behavior tasks. Our hypothesis is based on computational modeling data that suggest that the development of flexible cognitive control requires variable experiences in which to implement rule-guided action. We found that not all experiences that correlated with SES in our sample impacted task performance, and not all experiential variables that impacted performance were associated with SES. Of the experiential variables associated with task performance, only cognitive enrichment opportunities worked indirectly through SES to affect WM as tested with rule-guided behavior tasks. We discuss the data in the context of necessary precision in SES research.
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Affiliation(s)
- Dima Amso
- Brown University, Providence, Rhode Island
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7
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Enabling spontaneous analogy through heuristic change. Cogn Psychol 2017; 99:1-16. [DOI: 10.1016/j.cogpsych.2017.09.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 08/25/2017] [Accepted: 09/19/2017] [Indexed: 11/22/2022]
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Core, social and moral disgust are bounded: A review on behavioral and neural bases of repugnance in clinical disorders. Neurosci Biobehav Rev 2017; 80:185-200. [PMID: 28506923 DOI: 10.1016/j.neubiorev.2017.05.008] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 04/19/2017] [Accepted: 05/09/2017] [Indexed: 12/12/2022]
Abstract
Disgust is a multifaceted experience that might affect several aspects of life. Here, we reviewed research on neurological and psychiatric disorders that are characterized by abnormal disgust processing to test the hypothesis of a shared neurocognitive architecture in the representation of three disgust domains: i) personal experience of 'core disgust'; ii) social disgust, i.e., sensitivity to others' expressions of disgust; iii) moral disgust, i.e., sensitivity to ethical violations. Our review provides some support to the shared neurocognitive hypothesis and suggests that the insula might be the "hub" structure linking the three domains of disgust sensitivity, while other brain regions may subserve specific facets of the multidimensional experience. Our review also suggests a role of serotonin core and moral disgust, supporting "neo-sentimentalist" theories of morality, which posit a causal role of affect in moral judgment.
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Unger K, Ackerman L, Chatham CH, Amso D, Badre D. Working memory gating mechanisms explain developmental change in rule-guided behavior. Cognition 2016; 155:8-22. [PMID: 27336178 DOI: 10.1016/j.cognition.2016.05.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 05/24/2016] [Accepted: 05/30/2016] [Indexed: 11/28/2022]
Abstract
Cognitive control requires choosing contextual information to update into working memory (input gating), maintaining it there (maintenance) stable against distraction, and then choosing which subset of maintained information to use in guiding action (output gating). Recent work has raised the possibility that the development of rule-guided behavior, in the transition from childhood to adolescence, is linked specifically to changes in the gating components of working memory (Amso, Haas, McShane, & Badre, 2014). Given the importance of effective rule-guided behavior for decision making in this developmental transition, we used hierarchical rule tasks to probe the precise developmental dynamics of working memory gating. This mechanistic precision informs ongoing efforts to train cognitive control and working memory operations across typical and atypical development. The results of Experiment 1 verified that the development of rule-guided behavior is uniquely linked to increasing hierarchical complexity but not to increasing maintenance demands across 1st, 2nd, and 3rd order rule tasks. Experiment 2 then investigated whether this developmental trajectory in rule-guided behavior is best explained by change in input gating or output gating. Further, as input versus output gating also tend to correlate with a more proactive versus reactive control strategy in these tasks, we assessed developmental change in the degree to which these two processes were deployed efficiently given the task. Experiment 2 shows that the developmental change observed in Experiment 1 and in Amso et al. (2014) is likely a result of increased efficacy of output gating processes, as well as greater strategic efficiency in that adolescents opt for this costly process less often than children.
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Affiliation(s)
- Kerstin Unger
- Department of Cognitive, Linguistic, & Psychological Sciences, Brown University, United States.
| | - Laura Ackerman
- Department of Cognitive, Linguistic, & Psychological Sciences, Brown University, United States
| | - Christopher H Chatham
- Department of Cognitive, Linguistic, & Psychological Sciences, Brown University, United States
| | - Dima Amso
- Department of Cognitive, Linguistic, & Psychological Sciences, Brown University, United States
| | - David Badre
- Department of Cognitive, Linguistic, & Psychological Sciences, Brown University, United States
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Lourenco SF, Ayzenberg V, Lyu J. A general magnitude system in human adults: Evidence from a subliminal priming paradigm. Cortex 2016; 81:93-103. [PMID: 27179917 DOI: 10.1016/j.cortex.2016.04.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/01/2016] [Accepted: 04/03/2016] [Indexed: 11/18/2022]
Abstract
Despite general agreement that number and other magnitudes share analog format, there is disagreement about the extent to which representations of numerical and non-numerical magnitude recruit common cognitive and neural resources. Cross-dimensional interactions between number and other magnitudes on Stroop-like tasks have been taken as evidence for integration across magnitudes, but such effects are subject to alternative interpretations that allow for differentiated representations. Here we use a subliminal priming paradigm to test for interactions between different magnitudes (number and area) when one magnitude is not consciously detectable. Across two experiments, we first provide evidence for the feasibility of this paradigm by demonstrating that transfer occurs within the dimension of number; that is, symbolic numerals (Arabic digits) that were subliminally primed affected judgments of non-symbolic numerosities in target displays. Crucially, we also found transfer across magnitudes-from subliminally primed numerals to target displays of cumulative surface area whether participants made an ordinal judgment (i.e., "which array is larger in area?") or judged whether two arrays were the same or different in area. These findings suggest that representations of number and area are not fully differentiated. Moreover, they provide unique support for a general magnitude system that includes direct connections, or overlap, between the neural codes for numerical and non-numerical magnitudes.
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11
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Reber TP, Luechinger R, Boesiger P, Henke K. Detecting analogies unconsciously. Front Behav Neurosci 2014; 8:9. [PMID: 24478656 PMCID: PMC3898596 DOI: 10.3389/fnbeh.2014.00009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 01/07/2014] [Indexed: 11/13/2022] Open
Abstract
Analogies may arise from the conscious detection of similarities between a present and a past situation. In this functional magnetic resonance imaging study, we tested whether young volunteers would detect analogies unconsciously between a current supraliminal (visible) and a past subliminal (invisible) situation. The subliminal encoding of the past situation precludes awareness of analogy detection in the current situation. First, participants encoded subliminal pairs of unrelated words in either one or nine encoding trials. Later, they judged the semantic fit of supraliminally presented new words that either retained a previously encoded semantic relation (“analog”) or not (“broken analog”). Words in analogs versus broken analogs were judged closer semantically, which indicates unconscious analogy detection. Hippocampal activity associated with subliminal encoding correlated with the behavioral measure of unconscious analogy detection. Analogs versus broken analogs were processed with reduced prefrontal but enhanced medial temporal activity. We conclude that analogous episodes can be detected even unconsciously drawing on the episodic memory network.
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Affiliation(s)
- Thomas P Reber
- Department of Psychology, University of Bern , Bern , Switzerland ; Center for Cognition, Learning and Memory, University of Bern , Bern , Switzerland
| | - Roger Luechinger
- Institute for Biomedical Engineering, ETH Zurich , Zurich , Switzerland
| | - Peter Boesiger
- Institute for Biomedical Engineering, ETH Zurich , Zurich , Switzerland
| | - Katharina Henke
- Department of Psychology, University of Bern , Bern , Switzerland ; Center for Cognition, Learning and Memory, University of Bern , Bern , Switzerland
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McKeown GJ. The Analogical Peacock Hypothesis: The Sexual Selection of Mind-Reading and Relational Cognition in Human Communication. REVIEW OF GENERAL PSYCHOLOGY 2013. [DOI: 10.1037/a0032631] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This integrative review presents a novel hypothesis as a basis for integrating two evolutionary viewpoints on the origins of human cognition and communication, the sexual selection of human mental capacities, and the social brain hypothesis. This new account suggests that mind-reading social skills increased reproductive success and consequently became targets for sexual selection. The hypothesis proposes that human communication has three purposes: displaying mind-reading abilities, aligning and maintaining representational parity between individuals to enable displays, and the exchange of propositional information. Intelligence, creativity, language, and humor are mental fitness indicators that signal an individual's quality to potential mates, rivals, and allies. Five features central to the proposed display mechanism unify these indicators, the relational combination of concepts, large conceptual knowledge networks, processing speed, contextualization, and receiver knowledge. Sufficient between-mind alignment of conceptual networks allows displays based upon within-mind conceptual mappings. Creative displays communicate previously unnoticed relational connections and novel conceptual combinations demonstrating an ability to read a receiver's mind. Displays are costly signals of mate quality with costs incurred in the developmental production of the neural apparatus required to engage in complex displays and opportunity costs incurred through time spent acquiring cultural knowledge. Displays that are fast, novel, spontaneous, contextual, topical, and relevant are hard-to-fake for lower quality individuals. Successful displays result in elevated social status and increased mating options. The review addresses literatures on costly signaling, sexual selection, mental fitness indicators, and the social brain hypothesis; drawing implications for nonverbal and verbal communication.
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Ward J, Thompson-Schill S. Highlights of the first two volumes and the new challenges ahead. Cogn Neurosci 2012. [DOI: 10.1080/17588928.2012.694626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rostrolateral prefrontal cortex and individual differences in uncertainty-driven exploration. Neuron 2012; 73:595-607. [PMID: 22325209 DOI: 10.1016/j.neuron.2011.12.025] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2011] [Indexed: 11/21/2022]
Abstract
How do individuals decide to act based on a rewarding status quo versus an unexplored choice that might yield a better outcome? Recent evidence suggests that individuals may strategically explore as a function of the relative uncertainty about the expected value of options. However, the neural mechanisms supporting uncertainty-driven exploration remain underspecified. The present fMRI study scanned a reinforcement learning task in which participants stop a rotating clock hand in order to win points. Reward schedules were such that expected value could increase, decrease, or remain constant with respect to time. We fit several mathematical models to subject behavior to generate trial-by-trial estimates of exploration as a function of relative uncertainty. These estimates were used to analyze our fMRI data. Results indicate that rostrolateral prefrontal cortex tracks trial-by-trial changes in relative uncertainty, and this pattern distinguished individuals who rely on relative uncertainty for their exploratory decisions versus those who do not.
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Kharitonova M, Munakata Y. The Role of Representations in Executive Function: Investigating a Developmental Link between Flexibility and Abstraction. Front Psychol 2011; 2:347. [PMID: 22144971 PMCID: PMC3227021 DOI: 10.3389/fpsyg.2011.00347] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Accepted: 11/04/2011] [Indexed: 11/13/2022] Open
Abstract
Young children often perseverate, engaging in previously correct, but no longer appropriate behaviors. One account posits that such perseveration results from the use of stimulus-specific representations of a situation, which are distinct from abstract, generalizable representations that support flexible behavior. Previous findings supported this account, demonstrating that only children who flexibly switch between rules could generalize their behavior to novel stimuli. However, this link between flexibility and generalization might reflect general cognitive abilities, or depend upon similarities across the measures or their temporal order. The current work examined these issues by testing the specificity and generality of this link. In two experiments with 3-year-old children, flexibility was measured in terms of switching between rules in a card-sorting task, while abstraction was measured in terms of selecting which stimulus did not belong in an odd-one-out task. The link between flexibility and abstraction was general across (1) abstraction dimensions similar to or different from those in the card-sorting task and (2) abstraction tasks that preceded or followed the switching task. Good performance on abstraction and flexibility measures did not extend to all cognitive tasks, including an IQ measure, and dissociated from children's ability to gaze at the correct stimulus in the odd-one-out task, suggesting that the link between flexibility and abstraction is specific to such measures, rather than reflecting general abilities that affect all tasks. We interpret these results in terms of the role that developing prefrontal cortical regions play in processes such as working memory, which can support both flexibility and abstraction.
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Affiliation(s)
- Maria Kharitonova
- Department of Psychology and Neuroscience, University of ColoradoBoulder, CO, USA
| | - Yuko Munakata
- Department of Psychology and Neuroscience, University of ColoradoBoulder, CO, USA
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Ward J. Cognitive Neuroscience: What? Another journal? Cogn Neurosci 2010; 1:241-3. [PMID: 24168376 DOI: 10.1080/17588928.2010.518488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Yes, another journal! The field of cognitive neuroscience continues to grow and mature, and it is important that publishing outlets continue to grow and mature in order to support the increasing volume of high-quality research. However, it is our intention that Cognitive Neuroscience will offer something genuinely different in terms of content and publishing standards. This editorial sets out the ethos behind the journal and presents some publishing statistics on our first year.
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Halford GS, Wilson WH, Phillips S. Relational knowledge: the foundation of higher cognition. Trends Cogn Sci 2010; 14:497-505. [DOI: 10.1016/j.tics.2010.08.005] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 08/30/2010] [Accepted: 08/31/2010] [Indexed: 11/24/2022]
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