Taxonomic and thematic categories: Neural correlates of categorization in an auditory-to-visual priming task using fMRI

Saß, Katharina; Sachs, Olga; Krach, Sören; Kircher, Tilo

doi:10.1016/j.brainres.2009.03.013

Cited by 74 publications

(66 citation statements)

References 59 publications

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“…This differentiation might be based on perceptual/visual attributes (natural kinds) and functional/motor features (artifacts), i.e., object knowledge is organized around sensory and functional features as suggested by the sensory-motor hypothesis [Warrington and Shallice, 1984]. However, according to the results of the current study and results of earlier studies [e.g, Kahlaoui et al, 2007;Sass et al, 2009b] these differences between distinct objects domains (living, non-living) and categories (animals, tools) should be independent of presentation modality.…”

Section: Discussionmentioning

confidence: 56%

Priming words with pictures: Neural correlates of semantic associations in a cross‐modal priming task using fMRI

Kircher¹,

Saß²,

Sachs³

et al. 2009

Human Brain Mapping

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In our everyday life we process information from different modalities simultaneously with great ease. With the current study we had the following goals: to detect the neural correlates of (1) automatic semantic processing of associates and (2) to investigate the influence of different visual modalities on semantic processing. Stimuli were presented with a short SOA (350 ms) as subjects performed a lexical decision task. To minimize the variance and increase homogeneity within our sample, only male subjects were measured. Three experimental conditions were compared while brain activation was measured with a 3 T fMRI scanner: related word-pairs (e.g., frame-picture), unrelated word-pairs (e.g., frame-car) as well as word-nonword pairs (e.g., frame-fubber). They were presented uni- (word-word) and cross-modally (picture-word). Behavioral data revealed a priming effect for cross-modal and unimodal word-pairs. On a neural level, the unimodal condition revealed response suppression in bilateral fronto-parietal regions. Cross-modal priming led to response suppression within the right inferior frontal gyrus. Common areas of deactivation for both modalities were found in bilateral fronto-tempo-parietal regions. These results suggest that the processing of semantic associations presented in different modalities lead to modality-specific activation caused by early access routes. However, common activation for both modalities refers to a common neural network for semantic processing suggesting amodal processing.

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Section: Discussionmentioning

confidence: 56%

Priming words with pictures: Neural correlates of semantic associations in a cross‐modal priming task using fMRI

Kircher¹,

Saß²,

Sachs³

et al. 2009

Human Brain Mapping

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“…It is worth noting that the involvement of the temporoparietal junction -known to be involved in motion, action and spatial processing -has been consistently revealed across several studies (de Zubicaray et al, 2013;Mirman and Grazanio, 2012b;Schwartz et al, 2011). 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.…”

Section: Discussionmentioning

confidence: 88%

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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“…There is evidence supporting the existence of functionally and neuroanatomically distinct taxonomic and thematic semantic systems (de Zubicaray, Hansen, & McMahon, 2013; Kalénine et al, 2009; Lewis, Poeppel, & Murphy, 2015; Mirman & Graziano, 2012a; Sass, Sachs, Krach, & Kircher, 2009; Schwartz et al, 2011; but see Jackson, Hoffman, Pobric, & Lambon Ralph, 2015). Schwartz and colleagues (2011) investigated the brain regions responsible for taxonomic and thematic semantic errors during picture naming in a large sample of aphasic patients with left hemisphere regions.…”

Section: Introductionmentioning

confidence: 99%

Thematic knowledge, artifact concepts, and the left posterior temporal lobe: Where action and object semantics converge

Kalénine

Buxbaum

2016

Cortex

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Converging evidence supports the existence of functionally and neuroanatomically distinct taxonomic (similarity-based; e.g., hammer-screwdriver) and thematic (event-based; e.g., hammer-nail) semantic systems. Processing of thematic relations between objects has been shown to selectively recruit the left posterior temporoparietal cortex. Similar posterior regions have been also been shown to be critical for knowledge of relationships between actions and manipulable human-made objects (artifacts). Based on the hypothesis that thematic relationships for artifacts are based, at least in part, on action relationships, we assessed the prediction that the same regions of the left posterior temporoparietal cortex would be critical for conceptual processing of artifact-related actions and thematic relations for artifacts. To test this hypothesis, we evaluated processing of taxonomic and thematic relations for artifact and natural objects as well as artifact action knowledge (gesture recognition) abilities in a large sample of 48 stroke patients with a range of lesion foci in the left hemisphere. Like control participants, patients identified thematic relations faster than taxonomic relations for artifacts, whereas they identified taxonomic relations faster than thematic relations for natural objects. Moreover, response times for identifying thematic relations for artifacts selectively predicted performance in gesture recognition. Whole brain Voxel Based Lesion-Symptom Mapping (VLSM) analyses and Region of Interest (ROI) regression analyses further demonstrated that lesions to the left posterior temporal cortex, overlapping with LTO and visual motion area hMT+, were associated both with relatively slower response times in identifying thematic relations for artifacts and poorer artifact action knowledge in patients. These findings provide novel insights into the functional role of left posterior temporal cortex in thematic knowledge, and suggest that the close association between thematic relations for artifacts and action representations may reflect their common dependence on visual motion and manipulation information.

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Taxonomic and thematic categories: Neural correlates of categorization in an auditory-to-visual priming task using fMRI

Cited by 74 publications

References 59 publications

Priming words with pictures: Neural correlates of semantic associations in a cross‐modal priming task using fMRI

Priming words with pictures: Neural correlates of semantic associations in a cross‐modal priming task using fMRI

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

Thematic knowledge, artifact concepts, and the left posterior temporal lobe: Where action and object semantics converge

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