Limited evidence that alcohol affects emotional face processing via interoceptive pathways, a registered report.

Background: Our brain uses interoceptive signals from the body to shape how we perceive emotions in others; however, whether interoceptive signals can be manipulated to alter emotional perceptions is unknown. This registered report examined whether alcohol administration triggers physiological changes that alter interoceptive signals and manipulate emotional face processing.

Methods: Participants (n=36) were administered an alcohol or placebo beverage.

Alcohol effects on interoception shape expectancies and subjective effects: a registered report using the heart rate discrimination task.

Aims: Alcohol acutely impacts interoceptive processes, which in turn affect the perception of alcohol effects and the development of alcohol expectancies. However, previous research is limited by the tools used to measure cardiac interoception and subjective alcohol effects. This registered report proposes a re-examination of previous findings using a state-of-the-art measure of interoceptive capacity, the heart rate discrimination task, and measurements of subjective alcohol effects across both ascending and descending limbs.

Reliable evidence for implicit attentional responses to aversive conditioned stimuli.

Evidence for implicit aversive learning effects has been criticized for its lack of experimental rigor and statistical reliability. Here we examine whether attentional emotional responses to aversive conditioned stimuli can occur in the absence of stimulus-outcome contingency awareness, and use a novel Bayesian tool to reliably perform a post hoc categorization of awareness. Across two experiments ( = 40 and 69) participants completed an aversive conditioning task.

Cardiovascular mechanisms of interoceptive awareness: Effects of resonance breathing.

Interoception, the ability to perceive internal bodily sensations, and heart rate variability (HRV) share common physiological pathways, including the baroreflex feedback loop. The baroreflex can be activated by resonance breathing, wherein respiration is paced at 6 times per minute (0.1 Hz), eliciting immediate physiological changes and longer-term therapeutic responses.

Changes in interoception after alcohol administration correlate with expectancies and subjective effects.

Interoceptive signals give rise to subjective feeling states that can drive motivational and behavioural responses. In the context of alcohol use behaviours, interoceptive signals may shape subjective alcohol experiences and thereby support biobehavioural mechanisms of drinking behaviour change. This study examined the acute effects of alcohol on participants' interoceptive abilities and determined whether pharmacologically induced changes in heart beat detection correlate with subjective alcohol effects, craving and expectancies.

Does alcohol affect emotional face processing via interoceptive pathways?

Background: Our brain uses interoceptive signals from the body to shape how we perceive emotions in others; however, whether interoceptive signals can be manipulated to alter emotional perceptions is unknown. Alcohol has acute effects both on emotional processing and on the physiological substrates supporting interoception. In this registered report, we examine whether alcohol administration triggers physiological changes that alter interoceptive signals and manipulate emotional face processing.

An interoceptive basis for alcohol priming effects.

Rationale: Alcohol priming can modulate the value of rewards, as observed through the effects of acute alcohol administration on cue reactivity. However, little is known about the psychophysiological mechanisms driving these effects. Here, we examine how alcohol-induced changes in bodily states shape the development of implicit attentional biases and explicit cue reactivity.

More than meets the heart: systolic amplification of different emotional faces is task dependent.

Interoceptive processes emanating from baroreceptor signals support emotional functioning. Previous research suggests a unique link to fear: fearful faces, presented in synchrony with systolic baroreceptor firing draw more attention and are rated as more intense than those presented at diastole. This study examines whether this effect is unique to fearful faces or can be observed in other emotional faces.

Interoceptive signaling in alcohol cognitive biases: Role of family history and alliesthetic components.

The role of interoceptive signals in the development of cognitive biases for drug-related cues has been hypothesized in the past; however, experimental evidence is lacking. This report examined the relationship between physiological responses and memories for alcohol cues. Participants (n = 158) were categorized as having either a positive or negative family history of alcohol use disorder (AUD).

Early Signs of Emotional Recognition Deficits in Adolescent High-Binge Drinkers.

Emotional dysregulation, measured with face recognition tasks, is prevalent in alcohol use disorders (AUD), constituting a risk factor for alcohol use and relapse. It is not clear however whether emotional dysregulation is a by-product of alcohol consumption, or if it can act as a predisposing factor for AUD. Our aim was to examine early signs of emotional dysregulation in adolescent drinkers.

Interoceptive awareness is associated with acute alcohol-induced changes in subjective effects.

Interoception, the sensing of bodily signals, is related to emotional reactivity and may contribute to the pathophysiology of addiction. Evidence is accumulating that individuals with alcohol use disorders and other substance-dependences show altered interoceptive processing, however little is known about the acute effects of alcohol on interoception and how this may influence the perception of drug induced effects. In a double-blind design, fifty (30 females) healthy young participants were given a beverage containing either a low (0.

Knowledge about the predictive value of reward conditioned stimuli modulates their interference with cognitive processes.

Stimuli conditioned with a substance can generate drug-approach behaviors due to their acquired motivational properties. According to implicit theories of addiction, these stimuli can decrease cognitive control automatically. The present study ( = 49) examined whether reward-associated stimuli can interfere with cognitive processes in the absence of knowledge about stimulus-outcome contingencies.

Attentional responses to stimuli associated with a reward can occur in the absence of knowledge of their predictive values.

Classical conditioning theories of addiction suggest that stimuli associated with rewards acquire incentive salience, inducing emotional and attentional conditioned responses. It is not clear whether those responses occur without contingency awareness (CA), i.e.