Accuracy of respiratory symptom perception in persons with high and low negative affectivity

Accuracy of respiratory symptom perception was investigated in different contexts in participants (N = 56) scoring high or low for negative affectivity (NA). Within subject-correlations were calculated between minute ventilation (frequency per minute × tidal volume) and the subjective symptom ‘faster and/or deeper breathing’ across 10 subsequent breathing trials of 2?min with varying air mixtures, containing fresh or foul smelling odours and/or 5.5% CO₂. Half the participants were given a positive information frame for the sensations (‘some air mixtures may induce a pleasantly arousing feeling, like when being in love’), whereas the other half was given a negative frame (‘some air mixtures may induce feelings of being anxious and distressed’). Interoceptive accuracy was overall fairly high (r = 0.56–0.74), but it dropped considerably (r = 0.27), when bodily sensations were induced in high NA persons in a negative information frame (interaction, p < 0.005). Interoceptive accuracy appears low when persons with high NA are in situations characterised by negative affective cues.     

The Effect of Anxiety Sensitivity and Gender on the Experience of Pain

The association between negative affectivity (NA) and health complaints is thought to reflect a stronger attentional focus on bodily sensations in high NA persons. Perceiving these sensations as rather threatening, high NA persons may scan their internal environment for impending signs of pain and trouble. Using an on-line registration of attentional deployment, we tested whether high NA persons were allocating more attentional resources to internal sensations and less to external stimuli compared to low NA persons. High and low NA participants (N = 68) performed a Stroop-like primary task during a number of trials in which: (1) only an internal; (2) only an external; or (3) both an internal and an external stimulus could occur. Internal stimuli consisted of 7.5% carbon dioxide administrations, causing slight increases in ventilation. An increase in time interval between successive tones served as the external stimulus. Participants were asked to press a button when they noticed one of both events. Results showed that high NA participants: (1) detected the effects of a first respiratory stimulus faster; (2) performed poorer on the tone task when anticipating a respiratory challenge; (3) performed slower on the Stroop task during respiratory stimuli. These findings may indicate that high NA participants show a stronger attentional bias to internal sensations.     

Experimental comparison of dyspnea and pain

Dyspnea and pain are similarly unpleasant, alarming physical sensations, but studies examining both sensations in combination are lacking. In the present study, dyspnea was induced in 7 healthy volunteers by breathing through inspiratory resistive loads and the effects were compared with those of a heat pain stimulus. End-tidal partial pressures of carbon dioxide (PET_CO2), inspiratory time (Ti), breathing frequency (f), experienced unpleasantness, and intensity were measured. No difference was observed between dyspnea and pain in experienced intensity and unpleasantness (p >.05). During dyspneic stimulation, slightly higherTi was found than for pain (p<.08). PET_CO2 showed slight increases during the dyspneic versus the baseline and painful conditions (ΔPET_CO2=1.5 and 1.3 mmHg, respectively;p<.01 andp<.05). This study shows that the effects of dyspnea and heat pain can be compared within one experiment; both stimuli can be presented with similar intensity and unpleasantness, which is a prerequisite for comparing responses to them. The changes in PET_CO2 between our conditions were minimal, allowing an application of the present design to future fMRI studies.     

Automatic negative evaluation of suffocation sensations in individuals with suffocation fear

The current study tested whether "suffocation sensations" (respiratory loads) are automatically evaluated in a negative way by people fearing these sensations. It was found that, after having been primed with a slight respiratory load, participants with high suffocation fear (n=15) reacted more quickly to suffocation words and more slowly to positive words than participants with low suffocation fear (n=21). However, the effect was present only in participants who had noticed the primes. The findings are relevant to the cognitive model of panic disorder because automatic negative appraisal of sensations may play a role in initiating a panic attack.     

Acute stress responses after indirect exposure to the MH17 airplane crash

People can experience disasters vicariously (indirectly) via conversation, social media, radio, and television, even when not directly involved in a disaster. This study examined whether vicarious exposure to the MH17‐airplane crash in Ukraine, with 196 Dutch victims, elicited affective and somatic responses in Dutch adults about 2,600 km away, who happened to participate in an ongoing diary study. Participants (n = 141) filled out a diary three times a day for 30 days on their smartphones. Within‐person changes in positive affect (PA) and negative affect (NA) and somatic symptoms after the crash were studied. Additionally, we tested whether between‐person differences in response could be explained by age, baseline personality (NEO‐FFI‐3), and media exposure. The MH17 crash elicited a small within‐person decrease in PA and an increase in NA and somatic symptoms. This response waned after 3 days and returned to baseline at day four. The decrease in PA was larger in more extraverted participants but smaller in those higher on neuroticism or conscientiousness. The NA response was smaller in elderly. Personality did not seem to moderate the NA and somatic response, and neither did media exposure. Dutch participants showed small acute somatic and affective responses up till 3 days to a disaster that they had not directly witnessed. Vicariously experienced disasters can thus elicit affective‐visceral responses indicative of acute stress reactions. Personality and age explained some of the individual differences in this reaction.     

Sensory awareness versus sensory impression: Affect and attention interact to produce somatic meaning

Abstract

Contrary to the assumptions of common sense—and of some research—focusing on one's physical sensations does not necessarily make them more unpleasant. Rather, attention and affect interact to produce somatic meaning. Fifty-six male subjects exercised at 60% of their aerobic capacity with either no instructions, or instructions to closely monitor their somatic sensations. Half of each group thought they might receive an electric shock while they exercised. Subjects then listed the sensations they perceived, and indicated their degree of noticeability, their subjective unpleasantness, and their presumed cause. Monitoring subjects reported the same number of physical sensations as did the no-instruction subjects, and rated them as noticeable to the same degree. Nonetheless, monitoring produced a more negative interpretation of one's sensations under threat, but a more positive one under no threat. The findings support and extend the view of somatic experience as inherently plastic. The results also suggest that sensory attention can influence the meaning of somatic information—in both a positive and a negative direction—without necessarily imparting more of it.     

Effects of daily events on mood states in major depressive disorder

Major depressive disorder (MDD) is characterized by high negative affect (NA) and low positive affect (PA), but little is known about emotional reactivity in daily life. The authors used experience sampling methodology to investigate changes in NA and PA following minor daily events in MDD compared with healthy participants. Contrary to expectation, MDD participants did not report more frequent negative events, although they did report fewer positive events. Multilevel regression showed that both NA and PA responses to negative events were blunted in the MDD group, whereas responses to positive events were enhanced. NA responses to negative events persisted longer in MDD participants. Depressed participants with a positive family history or longer current episodes showed relatively greater NA responses to negative events.     

Are errors detected before they occur? Early error sensations revealed by metacognitive judgments on the timing of error awareness

Errors in choice tasks are not only detected fast and reliably, participants often report that they knew that an error occurred already before a response was produced. These early error sensations stand in contrast with evidence suggesting that the earliest neural correlates of error awareness emerge around 300 ms after erroneous responses. The present study aimed to investigate whether anecdotal evidence for early error sensations can be corroborated in a controlled study in which participants provide metacognitive judgments on the subjective timing of error awareness. In Experiment 1, participants had to report whether they became aware of their errors before or after the response. In Experiment 2, we measured confidence in these metacognitive judgments. Our data show that participants report early error sensations with high confidence in the majority of error trials across paradigms and experiments. These results provide first evidence for early error sensations, informing theories of error awareness.     

Odor intensity and pleasantness for a diverse set of odorants

Data Analysis Office, U.S. Army Natick Laboratories, Natick, Massachusetts 01760 Observers compared the odor of butanol to the odors of various concentrations of 32 chemicals, and also rated the odor pleasantness and unpleasantness of these 32 odorants by a line matching procedure. All stimuli were presented to the observers by air dilution olfactometers. Odor intensity matches between each odorant and butanol were often describable by power functions. A derived magnitude estimate of odor intensity was obtained through a calibration of the butanol concentration scale. Most odorants grew less rapidly in intensity than butanol, and all odorants grew in intensity as decelerating functions of concentration. A more general function of the form P =: k₁ + k₂C^k3 was needed to account for the pleasantness-unpleasantness judgments. In this study, most odorants were rated either neutral or unpleasant. Observers showed far more variability in hedonic judgments than in intensity judgments.     

Memory for emotionally provocative words in alexithymia: A role for stimulus relevance

Alexithymia is associated with emotion processing deficits, particularly for negative emotional information. However, also common are a high prevalence of somatic symptoms and the perception of somatic sensations as distressing. Although little research has yet been conducted on memory in alexithymia, we hypothesized a paradoxical effect of alexithymia on memory. Specifically, recall of negative emotional words was expected to be reduced in alexithymia, while memory for illness words was expected to be enhanced in alexithymia.Eighty-five high or low alexithymia participants viewed and rated arousing illness-related (“pain”), emotionally positive (“thrill”), negative (“hatred”), and neutral words (“horse”). Recall was assessed 45 min later.High alexithymia participants recalled significantly fewer negative emotion words but also more illness-related words than low alexithymia participants. The results suggest that personal relevance can shape cognitive processing of stimuli, even to enhance retention of a subclass of stimuli whose retention is generally impaired in alexithymia.     

Transforming or restraining rumination: The impact of compassionate reappraisal versus emotion suppression on empathy,forgiveness, and affective psychophysiology

We tested the effects of practicing compassionate reappraisal vs. emotional suppression as direct coping responses to victims’ ruminations about a past interpersonal offense. Participants (32 females, 32 males) were randomly assigned to learn one coping strategy which immediately followed three of six offense rumination trials (counterbalanced). For both strategy types, coping (vs. offense ruminating) reduced ratings of negative emotion, decreased the use of negative emotion language, and reduced tension at the brow muscle (corrugator EMG). Only compassionate reappraisal coping (vs. offense rumination) immediately prompted greater empathy and emotional forgiveness toward the offender. Empathy ratings for the first coping trial mediated the relationship between strategy type and empathy ratings for the final rumination trial. Compassionate reappraisal strategy participants increased their empathy toward the offender while ruminating at the end of the study. Compassionate reappraisal participants (vs. emotional suppression) described coping (vs. rumination) with more positive language, and also had calmer cardiac pre-ejection period responses.     

The augment effect of negative affective background on positive stimulus: Two randomized controlled trials

Based on the affective endowment-contrast theory, negative affect (NA) is hypothesized to augment positive affect (PA). Study 1 examined this contrast effect (augment effect) in a laboratory setting. Participants (n?=?94) were assigned into positive, negative or neutral affective background conditions through false feedback procedure, and then a same positive stimulus was given to all participants. Results indicated that participants in negative condition experienced more feelings of PA and less NA after receiving the positive stimulus compared to the other two conditions. Study 2 investigated this augment effect under naturalistic context. Participants (n?=?150) were classified into high positive, high negative, or mild positive affective background groups based on their naturally occurred affects. Then a positive manipulation was giving to all participants. Results indicated that participants in the high negative group experienced the most decrease in feelings of NA after receiving the positive manipulation. Results from the two studies provided evidence to the endowment-contrast theory, indicating that the valance of positive stimulus was augmented under negative affective background.     

Do not interrupt me if it makes me feel something – Study of the effect of the pleasantness of interruptions on performance

IntroductionInterruptions are mostly related to negative outcomes and researchers already found that the complexity or the length of interruptions modulate their deleterious effect on performance. However, none of them investigated the effect of the pleasantness of interruptions.ObjectiveThe objective of the study is to evaluate the impact of the pleasantness on both the correct completion of the interrupting task and the time required to resume the primary task.MethodWe designed a realistic email searching primary task during which 46 participants were either not interrupted or interrupted by a simple math addition task during which a positive or a negative picture was progressively revealed. We then asked participants how pleasant they found the interrupting task and investigated the effects of perceived pleasantness both on the interrupting task and on resuming the primary task.ResultsResults showed that performance on the interrupting task was worst and the time to resume the primary task was longer when participants found the task very pleasant or very unpleasant. Performance in both tasks was the best when participants gave intermediate pleasantness judgments. The findings were independent of the valence and arousal of the pictures used to manipulate task pleasantness.ConclusionThese results are discussed in light of empirical studies assessing the deleterious effects of emotions on cognition, and practical implications are proposed.     

Predictors of competitive anxiety direction in male Tae Kwon Do practitioners: a multilevel mixed idiographic/nomothetic interactional approach

Objectives: To examine (a) affective states, proximity of competition and personality traits as predictors of anxiety direction and (b) investigate the role of personality characteristics in moderating the relationship between anxiety direction and proximity of competition and affective states.Method: A multilevel mixed idiographic/nomothetic approach. Intensity and direction of competitive anxiety and positive (PA) and negative affect (NA) were monitored in 22 male Tae Kwon Do practitioners across a week preceding a major competition using the experience sampling method (ESM). The participants were assessed on neuroticism and extraversion. Negative and positive affect and anxiety intensity and direction were measured at three random times a day across 1 week before the competition and 1 hour pre-competition.Results: Multilevel regression analyses revealed that cognitive anxiety intensity, positive affect, proximity to competition and extraversion were significant predictors of cognitive anxiety direction. Significant interaction effects of proximity to competition and neuroticism, and neuroticism and negative affect on cognitive anxiety direction were also observed. Somatic anxiety direction was a function of positive affect, somatic anxiety intensity, proximity to competition and the interaction effects of neuroticism and somatic anxiety intensity and neuroticism and proximity to competition.Conclusions: A multilevel mixed idiographic/nomothetic interactional approach may substantially assist in the explanation of intra- and inter-individual differences in anxiety direction.     

Dynamic processes in emotion regulation choice

ABSTRACT

Because emotion regulation (ER) processes operate over time, they potentially change the context in which subsequent ER processes occur. To test this proposal, fifty-two healthy participants completed the ER choice task. Thirty standardized low- and high-intensity negative images were used to generate different emotional contexts in which participants selected between distraction or reappraisal strategies to decrease the intensity of their negative emotion. Participants then implemented their selected strategy and rated their negative emotion. Using a dynamic perspective, we examined as predictors of ER strategy choice, in addition to current stimulus intensity, several contextual factors from the immediately preceding trial: preceding stimulus intensity and strategy choice, and the intensity of negative affect following the previous strategy implementation and thus preceding the current trial. Results replicated earlier findings that participants are more likely to choose distraction for high-intensity images. Extending earlier findings, selecting reappraisal in the preceding trial and greater negative affect preceding the current trial were associated with lower odds of choosing distraction. The lack of significant interactions among the current and preceding trial factors suggests that these effects on ER choice were direct and not through moderating the effect of current stimulus intensity. These findings support dynamic theories of ER.     

Effects of 7.5% CO2-Induced Anxiety on Individual Performance During a Group Computer Combat Game

The inhalation of 7.5% CO₂ has been shown to induce cognitive effects similar to anxiety. Sixteen healthy participants (14 male; mean age 25.6 years) inhaled either a mixture of 7.5% CO₂ gas or air while playing a group combat computer game. Participants reported greater feelings of anxiety and fired fewer bullets when inhaling CO₂ compared with air, indicating CO₂-induced anxiety may improve efficiency without task-related decrements. Being able to induce controlled and measured anxiety in group situations by CO₂ inhalation may be a useful technique when evaluating response to stressful situations, such as combat, in simulators or real-life scenarios.     

Main and Interactive Effects of Distress Tolerance and Negative Affect Intensity in Relation to PTSD Symptoms among Trauma-Exposed Adults

The present investigation evaluated the main and interactive effects of distress tolerance and negative affect intensity in relation to posttraumatic stress disorder (PTSD) symptom severity and symptom cluster severity. Participants were 190 trauma-exposed adults (52.6 % women; M _age?=?25.3 years, SD?=?11.4) recruited from the community. Distress tolerance (i.e., perceived ability to withstand distressing emotional states) demonstrated significant incremental associations with global PTSD symptom severity as well as Re-Experiencing, Emotional Numbing, and Hyperarousal symptom cluster severity. Negative affect intensity (i.e., perceived intensity of negative emotional responses) demonstrated significant incremental associations with each of the PTSD symptom outcomes. Moreover, the incremental interactive effect of distress tolerance and negative affect intensity was significantly associated with PTSD symptom severity as well as PTSD—Emotional Numbing symptom cluster severity. These incremental effects were evident after accounting for the variance explained by anxiety sensitivity (i.e., fear of anxiety-related sensations). Post hoc probing analyses supported the moderating role of negative affect intensity in the association between distress tolerance and PTSD symptom severity, such that low levels of distress tolerance, in the context of elevated levels of negative affect intensity, were associated with the greatest levels of PTSD symptoms.     

Investigations of a reproductive processing advantage in memory

Previous work has shown that processing words for their survival value improves memory. If this survival processing effect reflects an evolutionary adaptation in memory, processing words for their reproductive value should also improve memory. Across three experiments, participants rated words for their relevance in reproductive scenarios. In Experiment 1, participants rated adjectives (traits) for their relevance in finding a mate, evaluating a coworker, or in terms of their pleasantness. Mate processing produced better memory than pleasantness ratings, but not coworker processing. In Experiment 2, participants rated traits for their relevance in detecting sexual or emotional infidelity. Neither processing condition produced better memory compared to pleasantness ratings, but there were several unpredicted interactions involving participant sex and jealousy responses. In Experiment 3, participants rated gifts for their appropriateness in a romantic date or a housewarming party, or in terms of their pleasantness. Date processing and housewarming processing both improved recall compared to pleasantness rating, but date processing and housewarming processing did not produce differences compared to each other. Overall, the current study demonstrates very little evidence of a reproductive processing effect, and nothing approaching the magnitude of previous work on the survival processing effect.     

Ratings of Emotional Response to Pictorial Stimuli: Positive and Negative Affect Dimensions

The purpose of this study was to investigate the structure of emotional responses to pictorial stimuli within the affective space defined by orthogonal dimensions of positive affect (PA) and negative affect (NA). College student participants (N = 151) viewed 60 color photographic slides from the International Affective Picture System (Lang, Bradley, & Cuthbert, 1995) and rated their emotional responses to each slide using the Positive and Negative Affect Schedule (Watson, Clark, & Tellegen, 1988). Consistent with prediction, affective reactions to pleasant slides were characterized as high in PA, and low in NA. Unpleasant slides produced elevations on the NA scale, but contrary to expectation, also produced elevated ratings of PA, with the magnitude of PA scale scores increasing systematically with NA scale scores. The results suggest an interesting divergence between the structure of pictorially elicited affective reactions and that of ad hoc mood states. Directions for future research are discussed in relation to the unique properties of the slide viewing paradigm.