A perfusion fMRI investigation of thematic and categorical context effects in the spoken production of object names

Zubicaray, Greig I. de; Johnson, Kori; Howard, David; McMahon, Katie L.

doi:10.1016/j.cortex.2014.01.018

Cited by 50 publications

(43 citation statements)

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“…Thematic groupings did not elicit this behavioral effect (de Zubicaray et al, 2014), though they have been found to elicit the closely related cumulative semantic interference effect (Rose & Abdel Rahman, 2016). …”

Section: Systematic Review Of Dissociation Between Taxonomic and Themmentioning

confidence: 89%

Taxonomic and thematic semantic systems.

Mirman

Landrigan²,

Britt³

2017

Psychological Bulletin

171

151

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Object concepts are critical for nearly all aspects of human cognition, from perception tasks like object recognition, to understanding and producing language, to making meaningful actions. Concepts can have two very different kinds of relations: similarity relations based on shared features (e.g., dog – bear), which are called “taxonomic” relations, and contiguity relations based on co-occurrence in events or scenarios (e.g., dog – leash), which are called “thematic” relations. Here we report a systematic review of experimental psychology and cognitive neuroscience evidence of this distinction in the structure of semantic memory. We propose two principles that may drive the development of distinct taxonomic and thematic semantic systems: (1) differences between which features determine taxonomic vs. thematic relations and (2) differences in the processing required to extract taxonomic vs. thematic relations. This review brings together distinct threads of behavioral, computational, and neuroscience research on semantic memory in support of a functional and neural dissociation, and defines a framework for future studies of semantic memory.

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Section: Systematic Review Of Dissociation Between Taxonomic and Themmentioning

confidence: 89%

Taxonomic and thematic semantic systems.

Mirman

Landrigan²,

Britt³

2017

Psychological Bulletin

171

151

View full text Add to dashboard Cite

show abstract

“…The contribution of de Zubicaray et al (2013) uses data from neuroimaging to help specify the mechanism underlying the cumulative semantic interference effect in which the speed of picture naming shows a monotonic increase as a function of the number of previously named semantically related pictures and is not mitigated by changing the number of stimuli between the related items (Howard, Nickels, Coltheart, & Cole-Virtue, 2006). The originally proposed explanations of this effect include several familiar concepts within the domain of language production such as shared activation of semantic features, priming of semantic-to-lexical representations, and lexical selection by competition (Howard et al, 2006), although the last component has been recently questioned by Oppenheim, Dell, and Schwartz (2010) who simulated the effect using a computational model based on an account of lexical selection based on reaching a threshold rather than competition.…”

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confidence: 99%

“…Oppenheim et al's (2010) account included other differences from Howard et al's (2006) account that led de Zubicaray to use perfusion functional magnetic resonance imaging (fMRI) to examine the perfusion signal changes associated with the cumulative semantic interference effect. In using perfusion fMRI to help understand the neurocognitive mechanism underlying this effect, de Zubicaray et al (2013) are able to identify regions associated with the hallmark of the effect (i.e., the monotonically increasing difficulty with naming additional within-category exemplars) and are also able to powerfully constrain accounts of cumulative semantic interference.…”

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confidence: 99%

“…The meeting in New York, NY, was supported by a National Science Foundation workshop grant focused on identifying constraints on theories of language production from cognitive, computational and neural domains. The five papers based on that meeting represent the diversity of research approaches that can be brought to bear in crucial questions regarding language production, including two papers addressing the interaction of language production and related cognitive domains (executive control : Friesen, Luo, Luk, & Bialystok, 2014;gesture: Trofatter, Kontra, Beilock, & Goldin-Meadow, 2014), a neuroimaging investigation of crucial production tasks (de Zubicaray, McMahon, & Howard, 2013), a provocative essay on the similarities and differences of speech perception and production (Remez, 2014) and a comprehensive review paper on the morphosyntactic processing of number (Nickels, Biedermann, Fieder, & Schiller, 2014). In the remainder of this paper, each contribution will be introduced in the order they appear in the special issue, reflecting the breadth of topics relevant to our understanding of language production.…”

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confidence: 99%

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Cognitive and neural constraints on theories of language production

Buchwald

2014

Language, Cognition and Neuroscience

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“…Those studies reporting LIFG involvement tended to average data over all cycles or include cycle as a covariate of no interest (de Zubicaray, Johnson, Howard, & McMahon, 2014). This is potentially problematic as the interference effect manifests from the second cycle onwards, and the opposite pattern of semantic priming is sometimes observed in the first cycle, suggesting two different processes/mechanisms (i.e., priming and interference) might thus be confounded (see Belke & Stielow, 2013;Damian & Als, 2005).…”

Section: Neuroanatomical Regions Implicated In Semantic Interferencementioning

confidence: 99%

The roles of conceptual feature overlap and distinctiveness during lexical access in spoken word production

Vieth¹

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School of Psychology 2To produce a spoken word we must first retrieve it from memory in a process termed lexical selection. Lexical selection by competition theory proposes that retrieval is a process in which multiple word candidates are activated and compete for selection. While this theory has been prominent for several decades, it has been challenged in recent years by empirical demonstrations of semantic context effects in naming paradigms that are difficult to reconcile with a competitive lexical selection mechanism. These findings have led to novel theoretical accounts being formulated. This dissertation investigates how the structural organization of conceptual information influences spoken word production according to the different theoretical accounts. In simple terms, how are object concepts that we express everyday organized with respect to their constituent features, and how do these features determine semantic context effects in naming paradigms? Using picture-word interference and blocked cyclic paradigms in conjunction with functional neuroimaging, I investigated the potentially different roles that conceptual feature overlap and feature distinctiveness have in influencing semantic context effects in naming. Over three chapters comprising nine experiments, I show recent empirical findings used to challenge the competitive lexical selection account are not replicable. Further, I show that increasing conceptual feature overlap is primarily responsible for slowing naming latencies in semantic contexts. I conclude that a competitive account remains the most viable explanation of lexical selection in speech production. 3 Declaration by authorThis thesis is composed of my original work, and contains no material previously published or written by another person except where due reference has been made in the text. I have clearly stated the contribution by others to jointly-authored works that I have included in my thesis.I have clearly stated the contribution of others to my thesis as a whole, including statistical assistance, survey design, data analysis, significant technical procedures, professional editorial advice, and any other original research work used or reported in my thesis. The content of my thesis is the result of work I have carried out since the commencement of my research higher degree candidature and does not include a substantial part of work that has been submitted to qualify for the award of any other degree or diploma in any university or other tertiary institution. I have clearly stated which parts of my thesis, if any, have been submitted to qualify for another award.I acknowledge that an electronic copy of my thesis must be lodged with the University Library and, subject to the policy and procedures of The University of Queensland, the thesis be made available for research and study in accordance with the Copyright Act 1968 unless a period of embargo has been approved by the Dean of the Graduate School.I acknowledge that copyright of all material contained in my thesis resides w...

show abstract

A perfusion fMRI investigation of thematic and categorical context effects in the spoken production of object names

Cited by 50 publications

References 70 publications

Taxonomic and thematic semantic systems.

Taxonomic and thematic semantic systems.

Cognitive and neural constraints on theories of language production

The roles of conceptual feature overlap and distinctiveness during lexical access in spoken word production

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