“…Today we know, for example, that there is interaction between negative affectivity and attention control (Lonigan & Vasey, 2009). Therefore, an individual's ability to regulate emotion can modulate the extent to which attention is directed toward any stimulus or threat (Cisler & Koster, 2010;Peers & Lawrence, 2009) and unless attention control in highly anxious individuals, the processing of stimuli that are not threatening will be low (Ortega, Ramírez, Colmenero, & García-Viedma, 2012) and although the existence of the emotion/attention relationship is clear (Pacheco-Unguetti, Acosta, Callejas, & Lupiáñez, 2010), the same does not happen with the personality/attention relationship; hence the nature of that relationship needs to be defined in terms of objective measures. And the HRV is a biomarker that allows the integration of psychobiological processes precisely in natural contexts, as discussed in this study.…”