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Cited by 715

The Journal of Neurosci

Open access
Xander Houbaert, Chun-Lei Zhang, Frédéric Gambino, Marylin Lepleux, Melissa Deshors, Elisabeth Normand, Florian Levet, Mariana Ramos-Brossier +4 more·2014·Journal of Neuroscience
DOI 10.1523/jneurosci
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Abstract

When confronted with a complex moving stimulus, the brain can integrate local element velocities to obtain a single motion signal, or segregate the elements to maintain awareness of their identities. The integrated motion signal can drive smooth-pursuit eye movements (Heinen and Watamaniuk, 1998), whereas the segregated signal guides attentive tracking of individual elements in multiple-object tracking tasks (MOT; Pylyshyn and Storm, 1988). It is evident that these processes can occur simultaneously, because we can effortlessly pursue ambulating creatures while inspecting disjoint moving features, such as arms and legs, but the underlying mechanism is unknown. Here, we provide evidence that separate neural circuits perform the mathematically opposed operations of integration and segregation, by demonstrating with a dual-task paradigm that the two processes do not share attentional resources. Human observers attentively tracked a subset of target elements composing a small MOT stimulus, while pursuing it ocularly as it translated across a computer display. Integration of the multidot stimulus yielded optimal pursuit. Importantly, performing MOT while pursuing the stimulus did not degrade performance on either task compared with when each was performed alone, indicating that they did not share attention. A control experiment showed that pursuit was not driven by integration of only the nontargets, leaving the MOT targets free for segregation. Nor was a predictive strategy used to pursue the stimulus, because sudden changes in its global velocity were accurately followed. The results suggest that separate neural mechanisms can simultaneously segregate and integrate the same motion signals.

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  • The salience network is anchored in the anterior insula and dorsal anterior cingulate cortex, with prominent subcortical nodes in affect and reward processing regions; the frontoparietal network is anchored in the dorsolateral prefrontal cortex and posterior parietal cortex.

    “Two other large-scale brain networks that are directly involved in cognitive control have received considerable attention in this context: the salience network anchored in the anterior insula and dorsal anterior cingulate cortex, with prominent subcortical nodes in the affect and reward processing regions; and the frontoparietal network, anchored in the dorsolateral prefrontal cortex and posterior”

    From 20 years of the default mode network: A review and synthesis. (2023) · cites this paper as [23]

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Cited by

Sorted by citations

Authors
Houbaert, X., Zhang, C.-L., Gambino, F., Lepleux, M., Deshors, M., Normand, E., Levet, F., Ramos-Brossier, M., Billuart, P., Chelly, J., Herzog, É., & Humeau, Y.
Affiliations
Université de Bordeaux (FR)
ORCID
Venue
Journal of Neuroscience
Publisher
Society for Neuroscience
Published
2014-01-14
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
DOI
10.1523/jneurosci
OpenAlex
W4247121563
Cited by
715
References
7
Citations by year
2026: 7 · 2025: 22 · 2024: 22 · 2023: 33 · 2022: 51 · 2021: 34 · 2020: 45 · 2019: 55 · 2018: 38 · 2017: 31 · 2016: 32 · 2015: 86 · 2014: 96 · 2013: 154
Type
paratext
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Neuroscience (publishedVersion)
  • CORE Scholar (Wright State University) (submittedVersion, cc-by)
  • HAL (submittedVersion)
Funders
Japan Society for the Promotion of Science (15K09807, 22790249, 22240041)

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