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Cited by 122Visual perception and processing mechanismsVisual Attention and Saliency DetectionNeural and Behavioral Psychology Studies

Temporal dynamics of neuronal modulation during exogenous and endogenous shifts of visual attention in macaque area MT

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Busse, Laura, Katzner, Steffen, Treue, Stefan·2008·Proceedings of the National Academy of Sciences
DOI 10.1073/pnas.0707369105PMC PMC2571002
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Abstract

Dynamically shifting attention between behaviorally relevant stimuli in the environment is a key condition for successful adaptive behavior. Here, we investigated how exogenous (reflexive) and endogenous (voluntary) shifts of visual spatial attention interact to modulate activity of single neurons in extrastriate area MT. We used a double-cueing paradigm, in which the first cue instructed two macaque monkeys to covertly attend to one of three moving random dot patterns until a second cue, whose unpredictable onset exogenously captured attention, either signaled to shift or maintain the current focus of attention. The neuronal activity revealed correlates of both exogenous and endogenous attention, which could be well distinguished by their characteristic temporal dynamics. The earliest effect was a transient interruption of the focus of endogenous attention by the onset of the second cue. The neuronal signature of this exogenous capture of attention was a short-latency decrease of responses to the stimulus attended so far. About 70 ms later, the influence of exogenous attention leveled off, which was reflected in two concurrent processes: responses to the newly cued stimulus continuously increased because of allocation of endogenous attention, while, surprisingly, there was also a gradual rebound of attentional enhancement of the previously relevant stimulus. Only after an additional 110 ms did endogenous disengagement of attention from this previously relevant stimulus become evident. These patterns of attentional modulation can be most parsimoniously explained by assuming two distinct attentional mechanisms drawing on the same capacity-limited system, with exogenous attention having a much faster time course than endogenous attention.

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  • Exogenous and endogenous attention are independent systems acting on the same substrate (visual cortex).

    “This and other evidence (e.g. [36]) suggests that exogenous and endogenous attention are independent systems acting on the same substrate (i.e., visual cortex).”

    From Linking ADHD to the Neural Circuitry of Attention (2017) · cites this paper as [36]

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Authors
Busse, L., Katzner, S., & Treue, S.
Affiliations
German Primate Center (DE)
ORCID
Venue
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences
Published
2008-10-21
Volume
105
Issue
42
Pages
16380-16385
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
DOI
10.1073/pnas.0707369105
PMC
PMC2571002
OpenAlex
W2087960272
Cited by
122
References
39
Citations by year
2026: 2 · 2025: 9 · 2024: 5 · 2023: 7 · 2022: 8 · 2021: 6 · 2020: 8 · 2019: 11 · 2018: 8 · 2017: 9 · 2016: 5 · 2015: 6 · 2014: 7 · 2013: 6 · 2012: 7
FWCI
3.11
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • GoeScholar The Publication Server of the Georg-August-Universität Göttingen (Georg-August-Universität Göttingen) (submittedVersion, other-oa)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
visuospatial attention, bottom-up attention, top-down attention, attentional capture, attentional disengagement, area MT, extrastriate cortex, single-unit activity, attention dynamics, macaque, random dot motion
MeSH terms
Animals, Attention, Behavior, Animal, Macaca, Neurons, Time Factors, Vision, Ocular

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