Automatic processing of semantic relations in fMRI: Neural activation during semantic priming of taxonomic and thematic categories

Sachs, Olga; Weis, Susanne; Zellagui, Nadia; Huber, Walter; Zvyagintsev, Mikhail; Mathiak, Klaus; Kircher, Tilo

doi:10.1016/j.brainres.2008.03.045

Cited by 97 publications

(80 citation statements)

References 48 publications

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“…However, some areas were conceptual specific, such as left inferior frontal gyrus and right superior temporal gyrus. These results 31,25 demonstrate that, despite comparable behavioral effects (between taxonomic and thematic relations, and between conceptual and affective priming), there are both neural dissociation and shared neural bases working on these processes 32 . Examined the patterns of neural activation during a semantic judgment task and a lexical decision task within a semantic priming paradigm, the former required explicit semantic analysis, whereas the latter required implicit semantic processing.…”

Section: Neural Correlates Of Lexical-semantic Processing and The Semmentioning

confidence: 82%

“…From a neurofunctional perspective, it is widely accepted that the neural basis of semantic knowledge is extensively distributed in the brain; the evidence comes from neuroimaging studies with healthy participants [23][24][25] and also from studies with brain-damaged patients with semantic deficits 14 . In a fMRI study, Hauk, Davis, Kherif and Pulvermüller 23 examined the brain activation patterns of words with different semantic associations during a silent reading paradigm in a group of healthy subjects.…”

Section: Neural Correlates Of Lexical-semantic Processing and The Semmentioning

confidence: 99%

“…This may express complexity issues once fMRI studies on lexical learning show that more activation is associated to effortful processing, as opposed to more automatic processing, which results in less activation 30 . Regarding automatic semantic priming effects (SOA of 200 ms), Sachs et al 25 examined 16 healthy males with a visual semantic priming task, including taxonomic (i.e. classification) and thematic (context) relations.…”

Section: Neural Correlates Of Lexical-semantic Processing and The Semmentioning

confidence: 99%

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Lexical-semantic processing in the semantic priming paradigm in aphasic patients

Salles

Holderbaum

Parente

et al. 2012

Arq. Neuro-Psiquiatr.

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There is evidence that the explicit lexical-semantic processing deficits which characterize aphasia may be observed in the absence of implicit semantic impairment. The aim of this article was to critically review the international literature on lexical-semantic processing in aphasia, as tested through the semantic priming paradigm. Specifically, this review focused on aphasia and lexical-semantic processing, the methodological strengths and weaknesses of the semantic paradigms used, and recent evidence from neuroimaging studies on lexical-semantic processing. Furthermore, evidence on dissociations between implicit and explicit lexical-semantic processing reported in the literature will be discussed and interpreted by referring to functional neuroimaging evidence from healthy populations. There is evidence that semantic priming effects can be found both in fluent and in non-fluent aphasias, and that these effects are related to an extensive network which includes the temporal lobe, the pre-frontal cortex, the left frontal gyrus, the left temporal gyrus and the cingulated cortex.

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Section: Neural Correlates Of Lexical-semantic Processing and The Semmentioning

confidence: 82%

Section: Neural Correlates Of Lexical-semantic Processing and The Semmentioning

confidence: 99%

Section: Neural Correlates Of Lexical-semantic Processing and The Semmentioning

confidence: 99%

See 1 more Smart Citation

Lexical-semantic processing in the semantic priming paradigm in aphasic patients

Salles

Holderbaum

Parente

et al. 2012

Arq. Neuro-Psiquiatr.

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show abstract

“…Indeed, Kotz et al (2002) demonstrated that healthy adults took longer to respond to taxonomic relations than to thematic ones. More recently, Sachs et al (2008b) found a larger priming effect in the thematic condition than in the taxonomic one, together with more errors for taxonomic relationships. Sass et al's priming study (2009) reported clearer results in favour of thematic processes in healthy adults, as they only found a significant priming effect in the thematic condition, and none for taxonomic relationships.…”

Section: Discussionmentioning

confidence: 94%

“…Concerning the neural correlates of semantic priming for taxonomic and thematic relationships in lexical-decision tasks, several fMRI studies (Kotz et al, 2002;Sachs et al, 2008b;Sass et al, 2009) revealed that taxonomic relationships require the recruitment of additional areas in the right hemisphere, interpreted as reflecting a more effortful semantic processing than for thematic one. Contrasted to thematic relationships, taxonomic processing resulted in enhanced activations in cuneus (Kotz et al, 2002) -in accordance with Kalénine et al (2009) -precuneus (Kotz et al, 2002Sachs et al, 2008b) and isthmus of cingulate gyrus (Kotz et al, 2002) and was interpreted as relying on perceptual processing, episodic memory retrieval and on detection of semantic relations. In Sass et al…”

Section: Discussionmentioning

confidence: 99%

When the zebra loses its stripes but is still in the savannah: Results from a semantic priming paradigm in semantic dementia

Merck¹,

Jonin²,

Laisney

et al. 2014

Neuropsychologia

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Neural correlates of association strength and categorical relatedness in youths with autism spectrum disorder

2019

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Impaired language and communication are commonly observed in youths with autism spectrum disorders (ASDs). However, the organization of semantic knowledge in youths with ASD remains unclear compared to typically developing (TD) youths. The present study addresses this issue by using functional magnetic resonance imaging (fMRI) to examine the distinction between association strength and categorical relatedness of semantic knowledge. A sample of 31 male youths with ASD (mean age = 12.1 years, SD = 1.2) and 38 TD youths (mean age = 11.9 years, SD = 1.0) was recruited with matched age, gender, and handedness. Participants decided if two visually presented Chinese characters were semantically related during fMRI scanning. For weaker association strength, the ASD group showed greater left cuneus activation, which was positively correlated with the picture completion for visual perception, whereas the TD group showed greater middle temporal gyrus and inferior frontal gyrus activation. For higher categorical relatedness, the TD group showed greater activation than the ASD group in the occipitotemporal cortex and left precuneus, which was positively correlated with the similarities for concept formulation. Findings imply that the ASD group may use lower‐level visual information for both association strength and categorical relatedness. The TD group showed higher‐level controlled processes of more elaborate semantic representations for association strength and more elaborate features of categorical knowledge for semantic selection and integration. Autism Res 2019, 12: 1484–1494. © 2019 International Society for Autism Research, Wiley Periodicals, Inc.Lay SummaryIndividuals with autism spectrum disorder (ASD) often present language/communication impairments. Exploring the difference of semantic processing between youths with ASD and typically developing (TD) youths is crucial for understanding the organization of semantic knowledge. We found different neural substrates of semantic knowledge between these two groups. ASD youths may rely more on lower‐level visual information during semantic judgments, whereas TD youths showed higher‐level controlled processes of more elaborate semantic representations for selection and integration of words, phrases, and sentences.

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Automatic processing of semantic relations in fMRI: Neural activation during semantic priming of taxonomic and thematic categories

Cited by 97 publications

References 48 publications

Lexical-semantic processing in the semantic priming paradigm in aphasic patients

Lexical-semantic processing in the semantic priming paradigm in aphasic patients

When the zebra loses its stripes but is still in the savannah: Results from a semantic priming paradigm in semantic dementia

Neural correlates of association strength and categorical relatedness in youths with autism spectrum disorder

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