Inferior Occipital Gyrus Is Organized along Common Gradients of Spatial and Face-Part Selectivity

Haas, Benjamin de; Sereno, Martin I.; Schwarzkopf, D. Samuel

doi:10.1523/jneurosci.2415-20.2021

Cited by 31 publications

(25 citation statements)

References 78 publications

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“…Such pattern was also observed in the Control Experiments. We also observed similar spatial patterns between eyes-mouth bias and visual field bias in vertical direction ( Figure 4—figure supplement 1 ), which is consistent with previous findings in inferior occipital gyrus ( de Haas et al, 2021 ). While the right OFA and right pFFA have been considered as sensitive to facial components and whole faces respectively, in our data they showed similar spatial profiles of eyes and mouth responses along the posterior-anterior dimension.…”

Section: Resultssupporting

confidence: 91%

“…A recent study has revealed that in the inferior occipital gyrus, where the OFA located, both tunings for retinotopic location and face parts ( de Haas et al, 2021 ). Although the tuning peak maps were idiosyncratic across individuals, the two tuning maps were correlated within individuals, suggesting a relationship between face parts configuration and their typical retinotopic configuration.…”

Section: Discussionmentioning

confidence: 99%

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Spatial tuning of face part representations within face-selective areas revealed by high-field fMRI

Zhang

Jiang

Song

et al. 2021

eLife

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Regions sensitive to specific object categories as well as organized spatial patterns sensitive to different features have been found across the whole ventral temporal cortex (VTC). However, it is unclear that within each object category region, how specific feature representations are organized to support object identification. Would object features, such as object parts, be represented in fine-scale spatial tuning within object category-specific regions? Here, we used high-field 7T fMRI to examine the spatial tuning to different face parts within each face-selective region. Our results show consistent spatial tuning of face parts across individuals that within right posterior fusiform face area (pFFA) and right occipital face area (OFA), the posterior portion of each region was biased to eyes, while the anterior portion was biased to mouth and chin stimuli. Our results demonstrate that within the occipital and fusiform face processing regions, there exist systematic spatial tuning to different face parts that support further computation combining them.

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Section: Resultssupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Spatial tuning of face part representations within face-selective areas revealed by high-field fMRI

Zhang

Jiang

Song

et al. 2021

eLife

View full text Add to dashboard Cite

show abstract

“…A recent study has revealed that in the inferior occipital gyrus, where the OFA located, both tunings for retinotopic location and face parts (34). Although the tuning peak maps were idiosyncratic across individuals, the two tuning maps were correlated within individuals, suggesting a relationship between face parts configuration and their typical retinotopic configuration.…”

Section: Discussionmentioning

confidence: 94%

Spatial organization of face part representations within face-selective areas revealed by high-field fMRI

Zhang

Jiang

Song

et al. 2021

Preprint

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Regions sensitive to specific object categories as well as organized spatial patterns sensitive to different features have been found across the whole ventral temporal cortex (VTC). However, it is unclear that within each object category region, how specific feature representations are organized to support object identification. Would object features, such as object parts, be represented in fine-scale spatial organization within object category-specific regions? Here we used high-field 7T fMRI to examine the spatial organization of neural tuning to different face parts within each face-selective region. Our results show consistent spatial organization across individuals that within right posterior fusiform face area (pFFA) and right occipital face area (OFA), the posterior portion of each region was biased to eyes, while the anterior portion was biased to mouth and chin stimuli. Our results demonstrate that within the occipital and fusiform face processing regions, there exist systematic spatial organizations of neural tuning to different face parts that support further computation combining them.

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“…The IOG participates in the related processes of visual processing such as correlated gradients of spatial and face-part selectivity due to typical face-directed gaze behavior (De Haas et al, 2021 ). As a simple measurement of connectivity between a single node and all other nodes in networks, the DC represents the importance of a node (Telesford et al, 2011 ).…”

Section: Discussionmentioning

confidence: 99%

“…The NE measures how efficiently information is exchanged over the network (Ottet et al, 2013 ). The decrease of Dc and Ne of the left IOG was positively correlated with the intra-modular interaction of the occipital lobe module and the inter-modular interaction of the parietal occipital module, indicating that the left IOG is a core node for information transmission within the occipital lobe and between the parietal occipital lobe (De Haas et al, 2021 ). In other words, the dysfunction of the left IOG plays an important role in the integration of whole brain function and further affects the connection between the occipital lobe and the parietal lobe.…”

Section: Discussionmentioning

confidence: 99%

Disrupted Topological Organization of Resting-State Functional Brain Networks in Age-Related Hearing Loss

Wei

Song²,

Xing³

et al. 2022

Front. Aging Neurosci.

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PurposeAge-related hearing loss (ARHL), associated with the function of speech perception decreases characterized by bilateral sensorineural hearing loss at high frequencies, has become an increasingly critical public health problem. This study aimed to investigate the topological features of the brain functional network and structural dysfunction of the central nervous system in ARHL using graph theory.MethodsForty-six patients with ARHL and forty-five age, sex, and education-matched healthy controls were recruited to undergo a resting-state functional magnetic resonance imaging (fMRI) scan in this study. Graph theory was applied to analyze the topological properties of the functional connectomes by studying the local and global organization of neural networks.ResultsCompared with healthy controls, the patient group showed increased local efficiency (Eloc) and clustering coefficient (Cp) of the small-world network. Besides, the degree centrality (Dc) and nodal efficiency (Ne) values of the left inferior occipital gyrus (IOG) in the patient group showed a decrease in contrast with the healthy control group. In addition, the intra-modular interaction of the occipital lobe module and the inter-modular interaction of the parietal occipital module decreased in the patient group, which was positively correlated with Dc and Ne. The intra-modular interaction of the occipital lobe module decreased in the patient group, which was negatively correlated with the Eloc.ConclusionBased on fMRI and graph theory, we indicate the aberrant small-world network topology in ARHL and dysfunctional interaction of the occipital lobe and parietal lobe, emphasizing the importance of dysfunctional left IOG. These results suggest that early diagnosis and treatment of patients with ARHL is necessary, which can avoid the transformation of brain topology and decreased brain function.

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Inferior Occipital Gyrus Is Organized along Common Gradients of Spatial and Face-Part Selectivity

Abstract: Inferior occipital gyrus is organised along common gradients of spatial and face-part selectivityGradients of spatial and face-part selectivity in IOG

Cited by 31 publications

References 78 publications

Spatial tuning of face part representations within face-selective areas revealed by high-field fMRI

Spatial tuning of face part representations within face-selective areas revealed by high-field fMRI

Spatial organization of face part representations within face-selective areas revealed by high-field fMRI

Disrupted Topological Organization of Resting-State Functional Brain Networks in Age-Related Hearing Loss

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