Processing of different spatial scales in the human brain

Peer, Michael; Ron, Yorai; Monsa, Rotem; Arzy, Shahar

doi:10.7554/elife.47492

Cited by 51 publications

(64 citation statements)

References 91 publications

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“…In contrast, our findings here suggest that both the posterior and anterior medial parietal cortex represent social information. In the same vein, in a recent study we found that both posterior and anterior medial parietal regions also engage in spatial processing (at different scales) (Peer et al, 2019). These findings suggest that medial parietal subdivisions might not be driven strictly by domain, but by other factors related to domain and task.…”

Section: Discussionsupporting

confidence: 65%

“…Other factors that may distinguish posterior and anterior activations may be visual vs. abstract processing and representation, allocentric vs. egocentric processing, or emotionally-significant vs. insignificant relations representation. Furthermore, the relations between posterior and anterior regions may be considered as continuous gradients rather than distinct activations (Buckner and DiNicola, 2019;Huntenburg et al, 2017;Margulies et al, 2016;Peer et al, 2019). Future studies may shed more light on the factors influencing medial parietal lobe selectivity to different types of stimuli in the social, spatial and other cognitive domains.…”

Section: Discussionmentioning

confidence: 98%

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Brain coding of social network structure

Peer

Hayman

Tamir

et al. 2019

Preprint

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To successfully navigate our social world, we keep track of other individuals' relations to ourselves and to each other. But how does the brain encode this information? To answer this question, we mined participants' social media (Facebook TM ) profiles to objectively characterize the relations between individuals in their real-life social networks. Under fMRI, participants answered questions on each of these individuals. Using representational similarity analysis, we identified social network structure coding in the defaultmode network (medial prefrontal, medial parietal and lateral parietal cortices). When regressing out subjective factors (ratings of personal affiliation, appearance and personality), social network structure information was uniquely found in the retrosplenial complex, a region implicated in spatial processing. In contrast, information on individuals' personality traits and affiliation to the subjects was found in the medial prefrontal and parietal cortices, respectively. These findings demonstrate a cortical division between representation of structural, trait-based and self-referenced social knowledge.

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Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 98%

Brain coding of social network structure

Peer

Hayman

Tamir

et al. 2019

Preprint

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“…Additional studies have provided ample evidence of the role of the right dorsolateral prefrontal cortex, supplementary motor area (SMA), basal ganglia and inferior frontal gyrus as being involved in the estimation and encoding of temporal duration through the use of fMRI (Wiener et al 2010;Hayashi et al, 2018). Other studies have shown a neural distinction between space and time in which spatial and distance related tasks largely activate more posterior regions including the parahippocampus, anterior hippocampus, and retrosplenial complex (Gauthier & Wassenhove, 2016;Kim & Maguire, 2018;Peer et al, 2019), whereas time exclusively invokes the SMA (Coull, et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Multiplexing of EEG signatures for temporal and spatial distance estimates

Robinson

Wiener

2020

Preprint

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The perception and measurement of spatial and temporal dimensions have been widely studied. However, whether these two dimensions are processed independently is still being debated. Additionally, whether EEG components are uniquely associated with time or space, or whether they reflects a more general measure of magnitude remains unknown. While undergoing EEG, subjects traveled a randomly predetermined spatial or temporal interval and were then instructed to reproduce the interval traveled. In the task, the subject's travel speed varied for the estimation and reproduction phases of each trial, so that one dimension could not inform the other. Behaviorally, subject performance was more variable when reproducing time than space, but overall, just as accurate; notably, behavior was not correlated between tasks. EEG data revealed during estimation the contingent negative variation (CNV) tracked the probability of the upcoming interval, regardless of dimension. However, during reproduction, the CNV exclusively oriented to the upcoming temporal interval at the start of reproduction. Further, a dissociation between relatively early frontal beta and late posterior alpha oscillations was observed for time and space reproduction, respectively. Our findings indicate that time and space are neurally separable dimensions, yet are hierarchically organized across task contexts within the CNV signal.

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“…However, our evidence also suggests that scene and object mechanisms play some role in the visual representation of reachspaces, since both scene and object networks were activated to an intermediate degree during reachspace viewing. Broadly, these data suggest that the scale of depicted views is a major factor in the organization and structure of responses across the visual system (see also Peer et al, 2019 for related ideas beyond the visual system). Below, we discuss how the current results fit into the literature, and offer some speculation about the role of these regions in representing the reachable world.…”

Section: Discussionmentioning

confidence: 85%

Large-scale dissociations between views of objects, scenes, and reachable-scale environments in visual cortex

Josephs

Konkle

2020

Preprint

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Space-related processing recruits a network of brain regions separate from those recruited in object-related processing. This dissociation has largely been explored by contrasting views of navigable-scale spaces compared to close-up views of isolated objects. However, in naturalistic visual experience, we encounter spaces intermediate to these extremes, like the tops of desks and kitchen counters, which are not navigable but typically contain multiple objects. How are such reachablescale views represented in the brain? In two functional neuroimaging experiments with human observers, we find evidence for a large-scale dissociation of reachable-scale views from both navigable scene views and close-up object views. Three brain regions were identified which showed a systematic response preference to reachable views, located in the posterior collateral sulcus, the inferior parietal sulcus, and superior parietal lobule. Subsequent analyses suggest that these three regions may be especially sensitive to the presence of multiple objects. Further, in all classic scene and object regions, reachable-scale views dissociated from both objects and scenes with an intermediate response magnitude. Taken together, these results establish that reachable-scale environments have a distinct representational signature from both scene and object views.

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Processing of different spatial scales in the human brain

Cited by 51 publications

References 91 publications

Brain coding of social network structure

Brain coding of social network structure

Multiplexing of EEG signatures for temporal and spatial distance estimates

Large-scale dissociations between views of objects, scenes, and reachable-scale environments in visual cortex

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