Hemispheric Asymmetries for Whole-Based and Part-Based Face Processing in the Human Fusiform Gyrus

Rossion, Bruno; Dricot, Laurence; Devolder, Anne; Bodart, J M; Crommelinck, Marc; Gelder, Béatrice de; Zoontjes, R.

doi:10.1162/089892900562606

Cited by 399 publications

(303 citation statements)

References 47 publications

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“…Regions in both hemispheres showed transient onset effects, increased activation as a function of reading time, and showed activation that predicted recognition and comprehension on post-scan tests. The latter findings are particularly informative given that the left and right hemispheres have been associated with local and global perceptual processes, respectively (e.g., Martinez et al, 1997;Robertson et al, 1988;Rossion et al, 2000). If the right hemisphere plays a selective role in extracting the overall gist of a narrative from individual sentences, one might expect right hemisphere regions to show steeper linear increases as a function of reading duration (cf.…”

Section: Discussionmentioning

confidence: 99%

Neural substrates of narrative comprehension and memory

2008

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When reading a narrative, comprehension and retention of information benefit considerably from the use of situation models -coherent representations of the characters, locations, and activities described in the text. Here we used functional magnetic resonance imaging (fMRI) to explore the neural mechanisms supporting situation model processing. Participants read blocks of sentences that were either unrelated to one another or formed coherent narratives. A timecourse-based approach was used to identify regions that differentiated narrative-level comprehension from sentence-level comprehension. Most brain regions that showed modulation of activation during narrative-level comprehension were also modulated to a lesser extent during sentence-level comprehension, suggesting a shared reliance on general coherence-building mechanisms. However, tentative evidence was found for narrativespecific activation in dorsomedial prefrontal cortex. Additional analyses identified spatiotemporally distinct neural contributions to situation model processing, with posterior parietal regions supporting situation model construction and frontotemporal regions supporting situation model maintenance. Finally, a set of subsequent memory analyses demonstrated that the boost in comprehension and memory performance observed for coherent materials was attributable to the use of integrative situation models rather than lower-level differences in sentence-level or word-level encoding. These results clarify the functional contributions of distinct brain systems to situation model processing and their mapping onto existing psychological models of narrative comprehension.

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Section: Discussionmentioning

confidence: 99%

Neural substrates of narrative comprehension and memory

2008

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“…Fusiform areas are instrumental in face processing, in particular when faces are presented in forward condition, which is considered socially more relevant. In addition, the right fusiform gyrus may be more responsive to whole faces and the left to face details (Rossion et al 2000). Amygdala activation may relate to aspects of emotional processing during gaze discrimination (Kawashima et al 1999), in particular to isolated eye features (Whalen et al 2004), or to attempts to search for and establish direct eye contact (Hooker et al 2003).…”

Section: Discussionmentioning

confidence: 99%

Brain activation during eye gaze discrimination in stable schizophrenia

Kohler

Loughead

Ruparel

et al. 2008

Schizophrenia Research

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Objective-Earlier studies described gaze discrimination impairment in schizophrenia. The purpose of this study was to compare gaze discrimination abilities and associated brain activation in persons with stable schizophrenia and matched controls.Methods-13 schizophrenia and 12 healthy participants underwent a gaze discrimination task with face stimuli rotated at 0, 4 and 8° deviation. During fMRI with BOLD imaging, subjects were asked to identify whether a face was making eye contact. Subject-level parameter estimates for BOLD signal change were entered into an orientation by group mixed effect repeated measures ANOVA.Results-Gaze discrimination performance did not differ between groups. Patients showed decreased activation in areas of bilateral inferior frontal and occipital areas, and select temporo-limbic regions, including amygdala. Groups differed by activation patterns according to gaze deviation. In controls, faces with 4° deviation produced higher activation in frontal and temporal regions. In patients, 0° deviation produced increased activation in amygdala and areas of temporal neocortex.Conclusions-Despite similar gaze discrimination abilities, schizophrenia patients exhibit decreased brain activation in areas associated with executive, emotional and visual processing. Controls exhibited increased activation associated with the more difficult task in select frontal and temporal regions. Patients exhibited increased activation associated with direct gaze in temporal regions, which may relate to common symptoms.

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“…When naming and recognizing the faces of famous persons, ASL signers engage additional neural areas in these more posterior regions perhaps because they do so whenever they process human faces. It is noteworthy that the region of activation within left IT borders the middle fusiform gyrus, an area that has been found to be engaged during part-based (featural) processing of unfamiliar faces (Rossion et al [37] report the following co-ordinates: −42, −50, −26; compare to −40, −35, −14 for naming persons in ASL, see Table 1). Although processing the unfamiliar faces in the control condition might engage these areas, in principle, half of those faces were upside-down and thus, would not be expected to do so (e.g.…”

Section: Discussionmentioning

confidence: 99%

Neural systems underlying lexical retrieval for sign language

et al. 2003

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Positron emission tomography was used to investigate whether signed languages exhibit the same neural organization for lexical retrieval within classical and non-classical language areas as has been described for spoken English. Ten deaf native American sign language (ASL) signers were shown pictures of unique entities (famous persons) and non-unique entities (animals) and were asked to name each stimulus with an overt signed response. Proper name signed responses to famous people were fingerspelled, and common noun responses to animals were both fingerspelled and signed with native ASL signs. In general, retrieving ASL signs activated neural sites similar to those activated by hearing subjects retrieving English words. Naming famous persons activated the left temporal pole (TP), whereas naming animals (whether fingerspelled or signed) activated left inferotemporal (IT) cortex. The retrieval of fingerspelled and native signs generally engaged the same cortical regions, but fingerspelled signs in addition activated a premotor region, perhaps due to the increased motor planning and sequencing demanded by fingerspelling. Native signs activated portions of the left supramarginal gyrus (SMG), an area previously implicated in the retrieval of phonological features of ASL signs. Overall, the findings indicate that similar neuroanatomical areas are involved in lexical retrieval for both signs and words.

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Hemispheric Asymmetries for Whole-Based and Part-Based Face Processing in the Human Fusiform Gyrus

Cited by 399 publications

References 47 publications

Neural substrates of narrative comprehension and memory

Neural substrates of narrative comprehension and memory

Brain activation during eye gaze discrimination in stable schizophrenia

Neural systems underlying lexical retrieval for sign language

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