Table 2 Correlations between measures of self-reported cognitive load and physiologic measures.

From: Heart Rate and Heart Rate Variability Correlate with Clinical Reasoning Performance and Self-Reported Measures of Cognitive Load

Cognitive Load Measure

Physiologic Measure

Correlation Coefficient

p-value

Intrinsic

LF

0.91

0.001

Intrinsic

SDNN

0.71

0.031

Intrinsic

RMSSD

0.69

0.040

Germane

VLF

0.68

0.045

CL1 + CL2 + CL3

QTVI

0.72

0.030

Intrinsic

t1 LF

0.70

0.035

Intrinsic

v2 LF

0.77

0.016

Intrinsic

v2 QT

0.75

0.033

Intrinsic

p2 LF

0.72

0.028

Intrinsic

p2 RMSSD

0.71

0.032

Intrinsic

t2 SDNN

0.76

0.019

Intrinsic

t2 VLF

0.73

0.027

Intrinsic

t2 LF

0.73

0.026

Intrinsic

v3 LF

0.73

0.026

Intrinsic

p3 LF

0.74

0.022

Intrinsic

p3 RMSSD

0.74

0.023

Intrinsic

t3 SDNN

0.90

0.001

Intrinsic

t3 VLF

0.76

0.018

Intrinsic

t3 LF

0.90

0.001

Intrinsic

t3 HF

0.72

0.030

Intrinsic

t3 RMSSD

0.86

0.003

Germane

p1 SDNN

0.84

0.005

Germane

p1 VLF

0.82

0.007

Germane

p1 LF

0.72

0.028

CL2

p2 QTVI

0.81

0.008

CL2

t2 QTVI

0.77

0.016

CL2

p3 QTVI

0.89

0.001

CL2

t3 QTVI

0.81

0.008

CL3

p3 RMSSD

0.69

0.040

  1. vn, pn and tn indicate the physiologic measures averaged during watching, PEF completion and the think-aloud sessions for clinical case n (1–3), respectively. When task number is not indicated, the full test period (63.1 ± 1.87 min) was used for the measurement.
Back to article page