Method at a glance
- Modality: multimodal self-report (autonomic/visceral)
- Measures: Self-reported awareness of, and reactivity of, one’s own bodily and autonomic processes — a sensibility/belief instrument, not an accuracy measure. Subscales cover conscious body awareness plus perceived autonomic (stress) reactivity.
- Procedure: A self-report questionnaire (Porges 1993) rated on five-point Likert scales. The awareness subscale asks how aware the respondent is of 45 body processes; a stress-response subscale (10 items) asks about awareness of perceived changes in a stressful situation; an autonomic-nervous-system-reactivity subscale (27 items) asks about the respondent’s own autonomic reactions; a stress-style subscale (12 items) evaluates the manner of responding to stress. Total and subscale scores are compared across groups or correlated with other measures.
- Also called: BPQ, Porges Body Perception Questionnaire, body awareness questionnaire
Strengths
- Cheap, non-invasive, repeatable; usable in clinical in-patient samples where task-based interoception is impractical.
- Separates conscious body awareness from perceived autonomic reactivity into distinct subscales — so a study can find them dissociating (as they do in depression: reactivity elevated, awareness flat).
- Widely used, which makes it comparable across the literature; it is a component of several composite interoception batteries.
Limitations
- It is sensibility, not accuracy — a belief/report measure with no ground truth, so a high score says how much a person reports attending to their body, not how well they sense it. Belongs on the believed/attention side of the taxonomy split, with the MAIA.
- Awareness and reactivity subscales can move independently, so ‘BPQ score’ is ambiguous unless the subscale is named — a total conflates a possibly-protective disposition with a possibly-pathological one.
- Report of autonomic reactivity is confounded with anxiety, symptom preoccupation and negative affect, so an elevated score in a clinical group may index distress rather than interoception.
- No relationship to objective cardiac accuracy, measured directly. In two samples where a heartbeat-counting task was administered alongside it, the BPQ correlated with performance at r ≤ .13 (ns) while an accuracy-belief scale in the same sessions correlated at r = .27–.34 (Murphy et al. 2020) — so this is a demonstrated null against a live positive control, not merely an untested assumption.
- It is uncorrelated with believed-accuracy scales too. BPQ ↔ IAS r = .066, .022, .040, .091 across three samples; BPQ ↔ ICQ likewise null. The BPQ is not a general interoceptive-sensibility measure — it is specifically an attention measure, and treating it as a proxy for interoceptive self-report in general has produced much of the wiki’s accuracy↔sensibility null literature.
- Its one reliable psychological correlate is anxiety. In regressions across age, gender, depression, anxiety and alexithymia, anxiety was the only significant predictor of BPQ scores (b = .588, p = .022) — and it did not survive robust regression, while the same models found alexithymia and depression predicting the accuracy-belief scales. Test–retest (r = .684 over 30 days) is significantly poorer than the ICQ’s (Z = 2.282, p = .022), and a one-factor CFA fits acceptably but imperfectly (RMSEA = .085, CFI = .877).
Connections
A self-report instrument developed by Stephen Porges (1993) to measure awareness of, and perceived reactivity of, one’s own bodily and autonomic processes. It has been present in the wiki secondhand across many pages — cited in Interoceptive taxonomy (Farb et al. Box 1), Quadt et al. (2018), Harrison et al. (2021), DuBois et al. (2016) and others — without a page of its own; it gets one with the Wiebking et al. (2010) ingest, which uses it as its main behavioural measure.
Where it sits in the taxonomy
The BPQ measures sensibility — self-reported, belief-laden report about the body — and not accuracy (task performance) or awareness (metacognitive correspondence, in Garfinkel et al.’s sense, despite the name of its own “awareness” subscale). This matters because the wiki repeatedly finds that sensibility and accuracy dissociate, and that the sensibility/report dimension is the one that most often tracks affect and psychopathology. The BPQ is a sibling of the MAIA: both are self-report, both split into subscales, both should be read as measures of how a person relates to the body rather than how well they sense it.
The subscale structure earns its keep
The instrument’s usefulness is that its subscales can come apart. Its four components — conscious body awareness (45 items), stress-response awareness (10 items), autonomic-nervous-system reactivity (27 items), and stress style (12 items) — do not always move together, and a study that reports only the total can miss the informative pattern. Wiebking et al. is the wiki’s clean example: depressed patients scored higher than controls on total, stress-response, autonomic-reactivity and stress-style, but not on the awareness subscale — an elevation of perceived bodily reactivity without an elevation of bodily awareness. The depressed body is more preoccupying and more reactive-feeling, not more accurately sensed. Any use of a BPQ total would have averaged that dissociation away.
The confound to hold
Because the reactivity subscales ask a person to report how strongly their body responds to stress, an elevated score in an anxious or depressed sample is hard to separate from the distress itself — symptom preoccupation, negative affect and anxiety all inflate self-reported bodily reactivity. So a group difference on the BPQ is evidence of altered bodily report, which is compatible with altered interoception but also with the mood state doing the reporting. This is the same caution the wiki attaches to every sensibility measure, and it is why Wiebking et al.’s neural decoupling result (body report present but decorrelated from insula activity in depression) is more informative than the raw BPQ elevation on its own.
What it is not, established directly
The page above says the BPQ measures sensibility rather than accuracy, which was an inference from its item content. Murphy et al. (2020) test it, and the answer is sharper than “sensibility”: the BPQ is an attention instrument, and it does not belong in the same bin as belief-about-accuracy scales at all.
Across three samples the BPQ was uncorrelated with the two self-reported accuracy measures — the IAS (r = .066, .022, .040, .091) and the ICQ — while those two correlated with each other at r = .57–.71. In the two samples with an objective task, heartbeat-counting accuracy correlated with the IAS and not with the BPQ. And in regression it was predicted by anxiety alone, where the accuracy scales were predicted by Alexithymia and depression.
The consequence for reading this wiki is direct. Several pages record “self-reported interoception does not predict objective interoceptive accuracy” as a general finding; a large share of the underlying studies used this instrument or MAIA Noticing. On this evidence that is a finding about attention measures specifically. See Interoceptive taxonomy (Farb et al. Box 1) and Interoceptive sensitivity.
Provenance note
The BPQ comes out of Porges’s autonomic/polyvagal programme — it was built to make claims about autonomic state testable by self-report — which is worth knowing when reading its reactivity subscales, since they are framed around the autonomic-nervous-system constructs that programme is organized by. Its adoption across the interoception literature is largely independent of the fate of polyvagal theory; it functions as a general body-sensibility scale.