TY - JOUR
T1 - I feel it in my finger
T2 - measurement device affects cardiac interoceptive accuracy
AU - Murphy, Jennifer Joanne
AU - Brewer, Rebecca Jane
AU - Coll, Michel-Pierre
AU - Plans, David
AU - Hall, Megan
AU - Shiu, Sound Sound
AU - Catmur, Caroline
AU - Bird, Geoffrey
PY - 2019/11/1
Y1 - 2019/11/1
N2 - In recent years, measures of cardiac interoceptive accuracy have been heavily scrutinised. The focus has been on potentially confounding physiological and psychological factors; little research has examined whether the device used to record objective heartbeats may influence cardiac interoceptive accuracy. The present studies assessed whether the device employed influences heartbeat counting (HCT) accuracy and the location from which heartbeats are perceived. In Study One, participants completed the HCT using a hard-clip finger pulse oximeter, electrocardiogram (ECG) and a smartphone application. In Study Two, an ECG, hard-clip and soft-clip oximeter were compared. Moderate-strong correlations were observed across devices, however, mean HCT accuracy and confidence varied as a function of device. Increased sensation in the finger when using a hard-clip pulse oximeter was related to increased accuracy relative to ECG. Results suggest that the device employed can influence HCT performance, and argue against comparing, or combining, scores obtained using different devices.
AB - In recent years, measures of cardiac interoceptive accuracy have been heavily scrutinised. The focus has been on potentially confounding physiological and psychological factors; little research has examined whether the device used to record objective heartbeats may influence cardiac interoceptive accuracy. The present studies assessed whether the device employed influences heartbeat counting (HCT) accuracy and the location from which heartbeats are perceived. In Study One, participants completed the HCT using a hard-clip finger pulse oximeter, electrocardiogram (ECG) and a smartphone application. In Study Two, an ECG, hard-clip and soft-clip oximeter were compared. Moderate-strong correlations were observed across devices, however, mean HCT accuracy and confidence varied as a function of device. Increased sensation in the finger when using a hard-clip pulse oximeter was related to increased accuracy relative to ECG. Results suggest that the device employed can influence HCT performance, and argue against comparing, or combining, scores obtained using different devices.
KW - Cardiac interoception
KW - ECG
KW - Heartbeat counting
KW - Interoception
KW - Interoceptive accuracy
KW - Pulse oximeter
UR - http://www.scopus.com/inward/record.url?scp=85072541046&partnerID=8YFLogxK
U2 - 10.1016/j.biopsycho.2019.107765
DO - 10.1016/j.biopsycho.2019.107765
M3 - Article
SN - 0301-0511
VL - 148
JO - Biological Psychology
JF - Biological Psychology
M1 - 107765
ER -