References of "Koval, Peter"
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See detailNeuroticism may not reflect emotional variability
Kalokerinos, Elise K.; Murphy, Sean C.; Koval, Peter et al

in PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020), 117(17), 9270--9276

Neuroticism is one of the major traits describing human personality, and a predictor of mental and physical disorders with profound public health significance. Individual differences in emotional ... [more ▼]

Neuroticism is one of the major traits describing human personality, and a predictor of mental and physical disorders with profound public health significance. Individual differences in emotional variability are thought to reflect the core of neuroticism. However, the empirical relation between emotional variability and neuroticism may be partially the result of a measurement artifact reflecting neuroticism’s relation with higher mean levels—rather than greater variability—of negative emotion. When emotional intensity is measured using bounded scales, there is a dependency between variability and mean levels: at low (or high) intensity, it is impossible to demonstrate high variability. As neuroticism is positively associated with mean levels of negative emotion, this may account for the relation between neuroticism and emotional variability. In a metaanalysis of 11 studies (<jats:italic>N</jats:italic> = 1,205 participants; 83,411 observations), we tested whether the association between neuroticism and negative emotional variability was clouded by a dependency between variability and the mean. We found a medium-sized positive association between neuroticism and negative emotional variability, but, when using a relative variability index to correct for mean negative emotion, this association disappeared. This indicated that neuroticism was associated with experiencing more intense, but not more variable, negative emotions. Our findings call into question theory, measurement scales, and data suggesting that emotional variability is central to neuroticism. In doing so, they provide a revisionary perspective for understanding how this individual difference may predispose to mental and physical disorders. [less ▲]

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See detailAffective instability in patients with chronic pain: a diary approach
Rost, Silke UL; Van Ryckeghem, Dimitri; Koval, Peter et al

in Pain (2016), 157(8), 1783-1790

Affective instability, conceptualized as fluctuations in mood over time, has been related to ill-health and psychopathology. In this study we examined the role of affective instability upon daily pain ... [more ▼]

Affective instability, conceptualized as fluctuations in mood over time, has been related to ill-health and psychopathology. In this study we examined the role of affective instability upon daily pain outcomes in 70 chronic pain patients (Mage = 49.7 years; 46 females) using an end-of-day diary. During a baseline phase, patients completed self-reported questionnaires of pain severity, pain duration, disability, depression and anxiety. During a subsequent diary phase, patients filled out an electronic end-of-day diary over 14 consecutive days assessing daily levels of pain severity, disability, cognitive complaints, negative affect (NA) and positive affect (PA). Affective instability was operationalized as the mean square of successive differences (MSSD) in daily mood (separately for NA and PA), which takes into account the size of affective changes over consecutive days. Results indicated that NA instability was positively associated with daily disability, beyond the effects of daily pain severity. Furthermore, NA instability moderated the relationship between daily pain severity and daily disability and the relationship between daily pain severity and daily cognitive complaints. PA instability, however showed to be unrelated to all outcomes. Current findings extend previous results and reveal the putative role of affective instability upon pain-related outcomes and may yield important clinical implications. Indeed, they suggest that targeting NA instability by improving emotion regulation skills may be a strategy to diminish disability and cognitive complaints in patients with chronic pain. [less ▲]

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See detailThe role of affective instability on daily chronic pain outcomes
Rost, Silke UL; Van Ryckeghem, Dimitri; Koval, Peter et al

Poster (2014, August 21)

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See detailThe influence of emotional instability on daily pain outcomes in chronic pain patients
Van Ryckeghem, Dimitri; Rost, Silke UL; Vögele, Claus UL et al

Poster (2014, May)

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See detailDay-to-day variability of emotions in chronic pain
Rost, Silke UL; Van Ryckeghem, Dimitri; Koval, Peter et al

Poster (2013, October 10)

Detailed reference viewed: 79 (6 UL)
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See detailThe relationship between emotion dynamics and pain outcomes
Rost, Silke UL; Van Ryckeghem, Dimitri; Koval, Peter et al

Scientific Conference (2013, September 06)

Detailed reference viewed: 83 (5 UL)