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Cited by 122Neural and Behavioral Psychology StudiesAdvanced MRI Techniques and ApplicationsFunctional Brain Connectivity Studies

Transient BOLD responses at block transitions

Fox, Michael D., Snyder, Abraham Z., Barch, Deanna M., Gusnard, Debra A., Raichle, Marcus E.·2005·NeuroImage
DOI 10.1016/j.neuroimage.2005.06.025
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Abstract

Block-design fMRI responses include sustained components present for the duration of each task block as well as transient components at the beginning and end of each block. Almost all prior block-design fMRI studies have focused on the sustained response components while the transient responses at block transitions have been largely ignored. These transients, therefore, remain poorly characterized. We here present a systematic study of block-transition transient responses obtained using four widely divergent tasks. We characterize transient response topography and examine the extent to which these responses vary across different tasks and between block onset and offset. Our analysis reveals that certain regions show transient responses regardless of task or transition type. However, our analysis also shows that specific task state transitions give rise to transient responses with unique spatial profiles. Relevance of the current findings to studies of exogenous attention, task shifting, and the BOLD overshoot is discussed.

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Crossref · 10.1016/j.neuroimage.2005.06.025

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  • Activity increases are also observed in the ventral attention system after abrupt changes in sensory stimuli, at the onset and offset of task blocks, and at the end of a completed trial.

    “Activity increases also are observed in the ventral system after abrupt changes in sensory stimuli (15), at the onset and offset of task blocks (16), and at the end of a completed trial (17).”

    From Spontaneous neuronal activity distinguishes human dorsal and ventral attention systems (2006) · cites this paper as [16]

  • Previous task-based studies have reported right lateralization of the ventral attention network.

    “Although previous task-based studies have reported right lateralization of this network (4, 15, 16, 47), we directly test and quantify this laterality on the basis of spontaneous activity.”

    From Spontaneous neuronal activity distinguishes human dorsal and ventral attention systems (2006) · cites this paper as [16]

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Authors
Fox, M. D., Snyder, A. Z., Barch, D. M., Gusnard, D. A., & Raichle, M. E.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Fox, Michael D.
ORCID
Venue
NeuroImage
Publisher
Elsevier BV
Published
2005-12
Volume
28
Issue
4
Pages
956-966
ISSN
1053-8119 (ISSN-L)
DOI
10.1016/j.neuroimage.2005.06.025
OpenAlex
W2101840271
Cited by
122
References
66
Citations by year
2026: 3 · 2025: 6 · 2024: 5 · 2023: 3 · 2022: 5 · 2021: 3 · 2020: 7 · 2019: 6 · 2018: 10 · 2017: 2 · 2016: 6 · 2015: 6 · 2014: 9 · 2013: 4 · 2012: 9
FWCI
3.13
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Neurological Disorders and Stroke (NS 06833)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
Keywords
response topography, task shifting, bottom-up attention
MeSH terms
Adult, Brain Chemistry, Cognition, Electrophysiology, Female, Fixation, Ocular, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Memory, Memory, Short-Term, Oxygen, Photic Stimulation, Psychomotor Performance, Reading, Visual Perception

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