Perception of Heart Rate and Blood Pressure: The Role of Alexithymia and Anxiety

While the ability to estimate heart rate in a laboratory setting appears to be related to anxiety and alexithymia, it is still unclear how the ability to estimate blood pressure is related to these psychological measures. The perception of heart rate and blood pressure in 24 normotensive subjects with varying degrees of alexithymia and anxiety was examined. Results indicate that the estimation of heart rate is related to psychological characteristics, while the estimation of blood pressure is not. More anxious subjects perceived heart rate more accurately than less anxious subjects. Furthermore, high alexithymic subjects perceived heart rate less accurately than low alexithymic subjects. The accuracy of estimation of blood pressure was, however, not related to alexithymia or anxiety. These findings provide further evidence that blood pressure estimates in a laboratory setting are mainly based upon situational cues.