Article (Scientific journals)
On the construct validity of interoceptive accuracy based on heartbeat counting: cardiovascular determinants of absolute and tilt-induced change scores
Schulz, André; Back, Sarah N.; Schaan, Violetta K. et al.
2021In Biological Psychology, 164 (1), p. 108168
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Abstract :
[en] Interoceptive accuracy (IAcc) as assessed with the heartbeat counting task (IAccHBCT) may be affected by a range of factors including (1.) the ability to adequately detect cardiac signals, indicated by IAcc in a heartbeat discrimination task (IAccHBDT), (2.) cardiac signal properties, affected by sympathetic and parasympathetic tone, and (3.) non-interoceptive processes, including time estimation accuracy (TEAcc). In the current study we investigated the contribution of these factors to absolute and Δ IAccHBCT scores, induced by passive head-up and head-down tilt in 49 healthy individuals. A set of hierarchical regression models showed IAccHBDT scores as the strongest and, across different orthostatic (tilt) conditions, most stable (positive) predictor of absolute and Δ IAccHBCT scores. Neither indicators of cardiac signal properties (except for HR in head-down-tilt), nor TEAcc predicted absolute or Δ IAccHBCT scores. These findings support the convergent and discriminant validity of absolute and Δ IAccHBCT scores.
Disciplines :
Neurosciences & behavior
Author, co-author :
Schulz, André  ;  University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS)
Back, Sarah N.
Schaan, Violetta K.
Bertsch, Katja
Vögele, Claus ;  University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS)
External co-authors :
yes
Language :
English
Title :
On the construct validity of interoceptive accuracy based on heartbeat counting: cardiovascular determinants of absolute and tilt-induced change scores
Publication date :
2021
Journal title :
Biological Psychology
ISSN :
1873-6246
Publisher :
Elsevier, Amsterdam, Netherlands
Special issue title :
Interoceptive Methods: Advances & Challenges
Volume :
164
Issue :
1
Pages :
108168
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 12 August 2021

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