---
_id: '7164'
abstract:
- lang: eng
  text: "Breath-based interactions in virtual reality typically map breathing onto
    discrete visual objects or downstream physiological proxies. Viscereality takes
    a different approach, mapping lung volume onto a surrounding space composed of
    particles arranged in an orb enclosing the participant through interoceptive-exteroceptive
    sensory\r\nsubstitution, such that inhalation expands the environment outward
    and exhalation contracts it inward. The aesthetic texture of the particle field
    is controlled by coupled oscillators governing phase relationships among individual
    particles' animation cycles, making visual organisation an experimentally adjustable
    parameter independent of the respiratory mechanics. In a preregistered within-subjects
    study (N = 39), participants completed three 10-minute audio-guided box-breathing
    sessions in counterbalanced order: a high-symmetry VR condition in which oscillator
    coupling transiently aligned particles into geometric coherence during breath
    holds, an asymmetric VR condition\r\nin which coupling remained irregular throughout,
    and a black-screen control with only a minimal breathing performance indicator.
    Subjective experience was assessed with an altered states of consciousness questionnaire,
    temporal experience tracers, and three pictographic self-related measures. Relative
    to the black-screen control, VR conditions improved breathing synchronization,
    shifted participants toward a more spatially extended frame of self-reference,
    and produced altered-state profiles with strong perceptual effects, moderate positive
    effects, and weaker distressing effects. Despite lasting only 10 minutes, perceptual
    and positive effect intensities were superficially\r\ncomparable to those reported
    in 90-minute facilitated breathwork sessions conducted without VR, while negative
    effects were lower. Temporal experience tracers converged with the retrospective
    questionnaire across all dimensions. Participants remained blind to the aesthetic
    symmetry manipulation, which also yielded no difference on any outcome measure.
    These results suggest that even a brief bioresponsive VR breathing session can
    meaningfully augment both breathing behavior and subjective experience, and may
    warrant further exploration as a complement to established breathwork practices."
author:
- first_name: George
  full_name: Fejer, George
  last_name: Fejer
- first_name: Till
  full_name: Holzapfel, Till
  last_name: Holzapfel
- first_name: Johannes
  full_name: Blum, Johannes
  last_name: Blum
- first_name: Taru
  full_name: Hirvonen, Taru
  last_name: Hirvonen
- first_name: Anestis-Pere
  full_name: Lalidis Mateo, Anestis-Pere
  id: '236796'
  last_name: Lalidis Mateo
  orcid: 0009-0002-9545-9043
  orcid_put_code_url: https://api.orcid.org/v2.0/0009-0002-9545-9043/work/226879134
- first_name: Michael
  full_name: Gaebler, Michael
  last_name: Gaebler
- first_name: Bigna
  full_name: Lenggenhager, Bigna
  last_name: Lenggenhager
citation:
  alphadin: '<span style="font-variant:small-caps;">Fejer, George</span> ; <span style="font-variant:small-caps;">Holzapfel,
    Till</span> ; <span style="font-variant:small-caps;">Blum, Johannes</span> ; <span
    style="font-variant:small-caps;">Hirvonen, Taru</span> ; <span style="font-variant:small-caps;">Lalidis
    Mateo, Anestis-Pere</span> ; <span style="font-variant:small-caps;">Gaebler, Michael</span>
    ; <span style="font-variant:small-caps;">Lenggenhager, Bigna</span>: <i>Breathing
    Space: Spatial Mapping of Breath and Cardiac Biofeedback for Affective State Representation
    and Coherence Training in Viscereality</i> : OSF, 2025'
  ama: 'Fejer G, Holzapfel T, Blum J, et al. <i>Breathing Space: Spatial Mapping of
    Breath and Cardiac Biofeedback for Affective State Representation and Coherence
    Training in Viscereality</i>. OSF; 2025. doi:<a href="https://doi.org/10.17605/OSF.IO/F2GMW">10.17605/OSF.IO/F2GMW</a>'
  apa: 'Fejer, G., Holzapfel, T., Blum, J., Hirvonen, T., Lalidis Mateo, A.-P., Gaebler,
    M., &#38; Lenggenhager, B. (2025). <i>Breathing Space: Spatial Mapping of Breath
    and Cardiac Biofeedback for Affective State Representation and Coherence Training
    in Viscereality</i>. OSF. <a href="https://doi.org/10.17605/OSF.IO/F2GMW">https://doi.org/10.17605/OSF.IO/F2GMW</a>'
  bibtex: '@book{Fejer_Holzapfel_Blum_Hirvonen_Lalidis Mateo_Gaebler_Lenggenhager_2025,
    title={Breathing Space: Spatial Mapping of Breath and Cardiac Biofeedback for
    Affective State Representation and Coherence Training in Viscereality}, DOI={<a
    href="https://doi.org/10.17605/OSF.IO/F2GMW">10.17605/OSF.IO/F2GMW</a>}, publisher={OSF},
    author={Fejer, George and Holzapfel, Till and Blum, Johannes and Hirvonen, Taru
    and Lalidis Mateo, Anestis-Pere and Gaebler, Michael and Lenggenhager, Bigna},
    year={2025} }'
  chicago: 'Fejer, George, Till Holzapfel, Johannes Blum, Taru Hirvonen, Anestis-Pere
    Lalidis Mateo, Michael Gaebler, and Bigna Lenggenhager. <i>Breathing Space: Spatial
    Mapping of Breath and Cardiac Biofeedback for Affective State Representation and
    Coherence Training in Viscereality</i>. OSF, 2025. <a href="https://doi.org/10.17605/OSF.IO/F2GMW">https://doi.org/10.17605/OSF.IO/F2GMW</a>.'
  ieee: 'G. Fejer <i>et al.</i>, <i>Breathing Space: Spatial Mapping of Breath and
    Cardiac Biofeedback for Affective State Representation and Coherence Training
    in Viscereality</i>. OSF, 2025.'
  mla: 'Fejer, George, et al. <i>Breathing Space: Spatial Mapping of Breath and Cardiac
    Biofeedback for Affective State Representation and Coherence Training in Viscereality</i>.
    OSF, 2025, doi:<a href="https://doi.org/10.17605/OSF.IO/F2GMW">10.17605/OSF.IO/F2GMW</a>.'
  short: 'G. Fejer, T. Holzapfel, J. Blum, T. Hirvonen, A.-P. Lalidis Mateo, M. Gaebler,
    B. Lenggenhager, Breathing Space: Spatial Mapping of Breath and Cardiac Biofeedback
    for Affective State Representation and Coherence Training in Viscereality, OSF,
    2025.'
date_created: 2026-09-16T09:12:52Z
date_updated: 2026-09-16T09:58:10Z
department:
- _id: '102'
doi: 10.17605/OSF.IO/F2GMW
keyword:
- biofeedback
- breath-based interaction
- breathwork
- altered states of consciousness
- particle systems
project:
- _id: A827C0AA-C7DA-11E9-B0AE-1F4CB252D58D
  name: Institute for Building Intelligence
publisher: OSF
related_material:
  link:
  - relation: original
    url: 10.17605/OSF.IO/64MWK
  record:
  - id: '7162'
    relation: other
    status: public
status: public
title: 'Breathing Space: Spatial Mapping of Breath and Cardiac Biofeedback for Affective
  State Representation and Coherence Training in Viscereality'
type: research_data
user_id: '236796'
year: '2025'
...
