Cited by 286Spatial Neglect and Hemispheric DysfunctionVestibular and auditory disordersTactile and Sensory Interactions

Cerebral representations for egocentric space: Functional-anatomical evidence from caloric vestibular stimulation and neck vibration

Bottini, G.·2001·Brain

Abstract

The internal representation of space involves the integration of different sensory inputs-visual, somatosensory/proprioceptive, vestibular-yielding reference frames which are not based on individual peripheral sensory codes, being organized instead in ego-centred (e.g. head, trunk, arm) and object- or environment-centred coordinates. Lateralized or direction-specific stimulation of peripheral sensory systems, such as caloric vestibular stimulation (CVS), posterior neck muscle mechanical vibration (NV) and optokinetic stimulation, can induce a distortion of egocentric coordinates, causing, for example, a deviation of the subjective straight ahead in pointing tasks. Appropriate forms of this stimulation can also temporarily improve a variety of pathological manifestations of unilateral neglect. We used PET measurements of regional cerebral blood flow changes in normal volunteers to measure the brain responses shared by CVS and NV. We show that somatosensory areas of the perisylvian cortex including the insula and retroinsular cortex, the temporoparietal junction and somatosensory area II receive signals from both sensory channels. We propose that these anatomical sites contribute to egocentric representation of space.

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Crossref · 10.1093/brain/124.6.1182

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  • TPJ activity is necessary for computing self-location and visuo-spatial perspective, because it receives converging visual, tactile, proprioceptive and vestibular signals about body orientation with respect to the environment.

    “As documented above, TPJ activity is necessary for computing self-location and visuo-spatial perspective, because it receives converging visual, tactile, proprioceptive and vestibular signals about body orientation with respect to the environment (Blanke & Arzy, 2005;Bottini et al., 2001;Lopez et al., 2008).”

    From Bodily ownership and self-location: Components of bodily self-consciousness (2013) · cites this paper as Bottini et al., 2001

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Authors
Bottini, G.
Affiliations
Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda (IT)
Corresponding author
Bottini, G.
Venue
Brain
Published
2001-06-01
Volume
124
Issue
6
Pages
1182-1196
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2085316921
Cited by
286
References
93
Citations by year
2026: 2 · 2025: 7 · 2024: 5 · 2023: 7 · 2022: 12 · 2021: 8 · 2020: 9 · 2019: 8 · 2018: 11 · 2017: 7 · 2016: 6 · 2015: 22 · 2014: 21 · 2013: 15 · 2012: 11
FWCI
7.51
Type
journal article
Language
en
Open access
closed
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
  • BOA (University of Milano-Bicocca) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • Wellcome Trust
  • Deutsche Forschungsgemeinschaft
  • Ministero dell'Università e della Ricerca
  • Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Spatial Neglect and Hemispheric Dysfunction
  • Life Sciences › Neuroscience › Neurology › Vestibular and auditory disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
Keywords
caloric vestibular stimulation, neck muscle vibration, multisensory integration, hemispatial neglect, perisylvian cortex, insula, temporoparietal junction, regional cerebral blood flow, optokinetic stimulation
MeSH terms
Adult, Brain Mapping, Caloric Tests, Cerebral Cortex, Cerebrovascular Circulation, Postural Balance, Humans, Functional Laterality, Male, Neck Muscles, Nerve Net, Physical Stimulation, Proprioception, Psychomotor Performance, Space Perception, Tomography, Emission-Computed, Vestibule, Labyrinth, Vibration

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