Cited by 93Functional Brain Connectivity StudiesAutism Spectrum Disorder ResearchAction Observation and Synchronization

Functional connectivity between the temporoparietal cortex and cerebellum in autism spectrum disorder

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Igelström, Kajsa M., Webb, Taylor W., Graziano, Michael S. A.·2016·Cerebral Cortex

Abstract

The neural basis of autism spectrum disorder (ASD) is not yet understood. ASD is marked by social deficits and is strongly associated with cerebellar abnormalities. We studied the organization and cerebellar connectivity of the temporoparietal junction (TPJ), an area that plays a crucial role in social cognition. We applied localized independent component analysis to resting-state fMRI data from autistic and neurotypical adolescents to yield an unbiased parcellation of the bilateral TPJ into 11 independent components (ICs). A comparison between neurotypical and autistic adolescents showed that the organization of the TPJ was not significantly altered in ASD. Second, we used the time courses of the TPJ ICs as spatially unbiased "seeds" for a functional connectivity analysis applied to voxels within the cerebellum. We found that the cerebellum contained a fine-grained, lateralized map of the TPJ. The connectivity of the TPJ subdivisions with cerebellar zones showed one striking difference in ASD. The right dorsal TPJ showed markedly less connectivity with the left Crus II. Disturbed cerebellar input to this key region for cognition and multimodal integration may contribute to social deficits in ASD. The findings might also suggest that the right TPJ and/or left Crus II are potential targets for noninvasive brain stimulation therapies.

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  • The TPJ is implicated in social cognition: attributing mind states to others recruits brain-wide networks that also pass through the TPJ.

    “When people attribute mind states to each other, such as beliefs or emotions, brain-wide networks are recruited that also pass through the TPJ (Saxe and Wexler, 2005; Kelly et al., 2014; Igelström et al., 2016).”

    From The Attention Schema Theory: A Foundation for Engineering Artificial Consciousness (2017) · cites this paper as Igelström et al., 2016

    The Introduction (pp. 1–2) links the TPJ to social cognition and theory of mind, and the discussion (p. 8) says a TPJ region overlaps with activation in theory-of-mind tasks. The paper does not establish that attributing beliefs or emotions recruits brain-wide networks passing through the TPJ; its connectivity findings concern resting-state networks rather than recruitment during those tasks. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • There is considerable overlap of function among subregions of the TPJ, though some separation of function is also present.

    “A complicated literature suggests that, although there is some separation of function among subregions of the TPJ, considerable overlap of function is also present (Mitchell, 2008; Scholz et al., 2009; Igelström et al., 2016; Igelström and Graziano, 2017).”

    From The Attention Schema Theory: A Foundation for Engineering Artificial Consciousness (2017) · cites this paper as Igelström et al., 2016

    The paper’s “Topographic Map of the TPJ in the Cerebellum” section (p. 7) says TPJc and TPJa are functionally related, while describing differences in their connectivity. “Cerebellar Maps of TPJ Subdivisions” (pp. 5–6) likewise distinguishes the subdivisions. These passages support some shared and separate functions, but do not establish considerable functional overlap among TPJ subregions generally. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • Brain imaging evidence suggests the TPJ plays a role in attributing visual awareness to others and that some of the same subregions are involved in constructing one's own visual awareness.

    “Experimental evidence from brain imaging studies suggests that the TPJ does play a role in attributing visual awareness to others, and that some of the same subregions of the TPJ are involved in constructing one's own visual awareness (Kelly et al., 2014; Igelström et al., 2016; Webb et al., 2016b).”

    From The Attention Schema Theory: A Foundation for Engineering Artificial Consciousness (2017) · cites this paper as Igelström et al., 2016

    The Introduction (p. 1) says the TPJ may mediate social cognition, and the results describe distinct TPJ subdivisions (p. 4). Neither passage addresses attributing visual awareness to others or constructing one's own visual awareness in overlapping subregions. Searches for visual awareness, self–other awareness, and perspective taking found no passage making that claim; the References (p. 10) list a related Kelly et al. paper but do not report its findings. (LLM, conf=0.74)

    Experimental — accuracy not yet measured

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Authors
Igelström, K. M., Webb, T. W., & Graziano, M. S. A.
Affiliations
Princeton University (US)
Corresponding author
Igelström, Kajsa M.
Venue
Cerebral Cortex
Published
2016-04-12
Volume
27
Issue
4
Pages
bhw079
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2335822060
Cited by
93
References
99
Citations by year
2026: 7 · 2025: 9 · 2024: 6 · 2023: 12 · 2022: 11 · 2021: 13 · 2020: 12 · 2019: 6 · 2018: 7 · 2017: 7 · 2016: 3
FWCI
4.83
Type
journal article
Language
en
Licence
other-oa
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • INFM-OAR (INFN Catania) (submittedVersion, other-oa)
Funders
Princeton Neuroscience Institute
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Social Sciences › Psychology › Social Psychology › Action Observation and Synchronization
Keywords
autism spectrum disorder, temporoparietal junction, cerebellum, functional connectivity, resting-state fMRI, parcellation, social cognition, social dysfunction, Crus II, non-invasive brain stimulation
MeSH terms
Autism Spectrum Disorder, Adolescent, Brain Mapping, Cerebellum, Female, Humans, Image Interpretation, Computer-Assisted, Magnetic Resonance Imaging, Male, Neural Pathways, Parietal Lobe, Temporal Lobe

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