Can I still eat this? Using implicit and explicit measures to explore consumer behavior toward food products with date labels.

This study investigates implicit and explicit attitudes toward products before and beyond the best-before date (BBD) using an Implicit Association Test and an online questionnaire. Moreover, we test whether consumer perception of and behavior toward products beyond the BBD can be manipulated using a priming task. We use a three-group between-subjects design where respondents had to recall either a frugal, a wasteful, or an unrelated behavior. Results show that consumers have negative implicit associations with products beyond the BBD. Reduced health and safety perceptions, consumers' strategies to determine edibility, and general risk perception of products beyond the BBD predict consumption of these products. While recalling a frugal behavior does not have significant effects, recalling a wasteful behavior prior to evaluating products beyond the BBD leads to a decrease in the perceived safety and healthfulness of these products.

Implicit gender bias in the diagnosis and treatment of type 2 diabetes: A randomized online study.

AIMS: Implicit gender biases (IGBs) are unconscious evaluations about a person based on gender. IGBs of healthcare providers may affect medical decision making. This study investigated whether IGBs and genders of patients and general practitioners (GPs) influence diagnostics and treatment decisions in the context of diabetes type 2. METHODS: Ninety-nine GPs participated in this randomized online study. Implicit Associations Tasks were used to measure two IGBs, related to lifestyle (women have a healthier lifestyle than men) and communication (men are less communicative than women). Clinical decisions regarding type 2 diabetes were measured with vignettes that included a fictional male or female patient case. RESULTS: Female GPs exhibited a significant lifestyle IGB (p < 0.001). GPs of both genders exhibited a significant communication IGB (p < 0.001). Several associations between IGBs and clinical decisions were found. The gender of the vignette character affected several outcomes, for example GPs were less certain in the diabetes diagnosis when the character was a woman (p < 0.001). CONCLUSION: We demonstrated that GPs have IGBs and these biases as well as patient's gender affect decisions of GP's when they are solving a diabetes vignette case. Future research is needed to understand the most important consequences of IGBs in the context of type 2 diabetes.

Implicit measures of alcohol approach and drinking identity in alcohol use disorder: A preregistered double-blind randomized trial with cathodal transcranial direct current stimulation (tDCS).

Alcohol use disorder (AUD) is a severe and widespread mental disorder with a huge negative impact on the social, economic and health dimensions. The identification of risk factors for the development of AUD and for relapse in existing AUD are crucial for prevention and treatment approaches. Alcohol-related implicit associations have been shown to contribute to drinking and might partially explain sudden relapses. The aims of this study are to investigate implicit associations in abstinent AUD patients and to test whether cathodal transcranial direct current stimulation (tDCS) modulates implicit associations. We measured performance in two alcohol-related implicit association tests (IATs) and two control tasks (flower-insect IAT, Stroop task) in 27 abstinent AUD patients with 31.5 (SD = 36) days of abstinence on average. During the execution of the tasks, we applied 1 mA cathodal or sham tDCS over the left dorsolateral prefrontal cortex (dlPFC) in a sham-controlled within-subject design. Results show an implicit bias of alcohol avoidance and implicit nondrinking identity for abstinent AUD patients. Cathodal tDCS modulated neither alcohol-related implicit associations nor the control tasks. This study complements knowledge about implicit alcohol-related association in AUD patients and shows no effect of a neuromodulatory intervention to alter implicit associations with the present parameters.

Associations between physical activity, basic motor competencies and automatic evaluations of exercise.

Dual process theories suggest that the decision to be physically active is influenced by reflective and automatic processes. However, associations of automatic (affective) evaluations of exercise with physical activity and underlying basic motor competencies have not yet been investigated in children and young adolescents. Ninety-one participants (52 male; age: 10-14 years) were recruited from academic high schools in Germany and Switzerland. Automatic evaluations of exercise were measured with the Single-Target Implicit Association Test (ST-IAT) and a D-score was calculated. Moderate-to-vigorous physical activity (MVPA) and vigorous physical activity (VPA) per day were determined via wrist-worn actigraphy over the course of seven days. Basic motor competencies were measured using the MOBAK-5 test battery. Pearson correlations showed non-significant associations of automatic evaluations of exercise with MVPA, but significant associations with VPA. Basic motor competencies were associated with automatic evaluations of exercise, and the MOBAK subscale of object movement was associated with both MVPA and VPA. Our results underscore the relevance of affective processes for physical activity behaviour. This could potentially be relevant for interventions targeting physical activity promotion. Longitudinal investigations and intervention studies are necessary to verify causal relationships and potential underlying mechanisms.

Effect of metabolic state on implicit and explicit responses to food in young healthy females.

Recent neuroscience research has delineated key psychological components of reward: wanting, liking and learning. Each component is further divided into explicit and implicit processes. While explicit processes are consciously experienced, implicit processes are not always directly accessible to conscious inspection. In the present study, we investigated the effect of metabolic state on implicit and explicit responses and their relationship in food context, especially when foods and visually matched non-food items are contrasted, and when foods in a sole food context but differing in energy content (high-energy - low-energy) or taste (sweet - savoury) were contrasted. Sixty healthy non-obese females participated in the study in fasted and fed states. Three Implicit Association Tests were used to assess implicit associations. Explicit liking and wanting ratings were assessed by visual analogue scales. In the implicit food-non-food context, food was preferred over non-food items both in fasted and fed states, though the strength of implicit associations declined significantly from fasted to fed state. However, the direction or strength of implicit associations was not significantly different between the metabolic states when comparing concepts within food context only, differing in energy content or taste. Instead, explicit responses reflected the change in the metabolic state in a manner consistent with alliesthesia and sensory-specific satiety. The results of the present study suggest that implicit associations are relatively resistant to acute change in the metabolic condition compared to explicit ratings, which shift more readily according to the fasted-fed continuum. The shift in the prevailing metabolic state was, however, reflected in the strength of implicit responses towards food in relation to non-food items, yet in the sole food contexts implicit associations were comparable between the fasted and fed states.

Childhood maltreatment and problematic alcohol use in young adulthood: the roles of cognitive vulnerability to depression and depressive symptoms.

BACKGROUND: Childhood maltreatment (CM) has been repeatedly linked to future problem drinking. Depression has been identified as a potential factor contributing to problematic alcohol use in maltreated individuals. However, depression has been operationalized as the presence or number of depression symptoms in the majority of previous studies. The role of other relevant measures of depression, such as depressive implicit associations, is not well understood. OBJECTIVES: The present study addresses this gap in the literature by examining the mediating role of both depression symptoms and depressive implicit associations. METHODS: A community sample of young adults (N = 208, mean age = 19.7, 78.4% females) completed self-report measures of CM, depression symptoms, and problem drinking. Depressive implicit associations were assessed by a computer-based implicit association test (IAT). Structural equation modeling (SEM) was used to examine the direct link between CM and problem drinking as well as indirect links through depression symptoms and depressive implicit associations. RESULTS: CM was significantly associated with both depression symptoms (ß = 0.35, p < .001) and depressive implicit associations (ß = 0.36, p < .001). Additionally, CM was associated with problem drinking indirectly via depression symptoms during young adulthood (ß = .06, p = .019). CONCLUSION: Our study provides evidence for the role of depression symptoms, but not for depressive implicit associations, in linking CM and problem drinking. Treating depression in individuals with a history of CM may help to prevent problem drinking in this vulnerable population.

Children's implicit food cognition: Developing a food Implicit Association Test.

Assessing children's reasoning about food, including their health knowledge and their food preferences, is an important step toward understanding how health messages may influence children's food choices. However, in many studies, assessing children's reasoning relies on parent report or could be susceptible to social pressure from adults. To address these limitations, the present study describes the development of a food version of the Implicit Association Test (IAT). The IAT has been used to examine children's implicit stereotypes about social groups, yet few studies have used the IAT in other domains (such as food cognition). Four- to 12-year-olds (n = 123) completed the food IAT and an explicit card sort task, in which children assessed foods based on their perception of the food's healthfulness (healthy vs. unhealthy) and palatability (yummy vs. yucky). Surprisingly, children demonstrated positive implicit associations towards vegetables. This pattern may reflect children's health knowledge, given that the accuracy of children's healthfulness ratings in the card sort task positively predicted children's food IAT d-scores. Implications for both food cognition and the IAT are discussed.

Implicit Memory Associations and Gambling.

Associations that people report in response to words or phrases ('implicit associations') may provide information about their interest and engagement in certain activities that might not have been reported if they had been directed asked. The present study investigated the word and behavioural associations reported by 494 university undergraduates to words and phrases that could be construed as having gambling-related connotations. These reported associations were then related to each student's level of gambling involvement and his or her problem gambling status. Results showed there to be a significant positive relationship between the number of gambling-related memory associations and reported level of gambling involvement as well as problem gambling status. Behaviour associations tended to be stronger than word associations, suggesting that each type of association may tap into a different facet of associative memory. Associations with problem gambling status were also stronger than associations with level of gambling involvement. The results suggest that implicit associations may have utility in both the assessment of problem gambling as well as predicting future gambling involvement.

Reduction of implicit cognitive bias with cathodal tDCS to the left prefrontal cortex.

Implicit associations can interfere with cognitive operations and behavioral decisions without direct intention. Enhancement of neural activity with anodal transcranial direct current stimulation (tDCS) was proposed to reduce implicit associations by means of improved cognitive control. However, a targeted reduction of distractive implicit associations by inhibitory cathodal tDCS, recently shown in spatial-numerical associations, provides an interesting alternative approach to support goal-directed behavior with transcranial brain stimulation. To test this rationale with a sham-controlled cross-over design, a standardized Implicit Association Test (IAT) was performed by 24 healthy participants parallel to 1 mA cathodal or sham tDCS to the left prefrontal cortex. In this double-classification task, insect versus flower pictures and negative versus positive words are mapped together onto two shared response keys with crossed response assignments in separate blocks. Responses were faster when insect + negative and flower + positive stimuli required the same answer (IAT effect). Most critically, the IAT effect was reduced during cathodal tDCS as compared to sham stimulation. Thus, results are consistent with the proposed stimulation rationale, with previous observations, and complementary to previous studies using different tDCS configurations.

Statistical Learning Creates Novel Object Associations via Transitive Relations.

A remarkable ability of the cognitive system is to make novel inferences on the basis of prior experiences. What mechanism supports such inferences? We propose that statistical learning is a process through which transitive inferences of new associations are made between objects that have never been directly associated. After viewing a continuous sequence containing two base pairs (e.g., A-B, B-C), participants automatically inferred a transitive pair (e.g., A-C) where the two objects had never co-occurred before (Experiment 1). This transitive inference occurred in the absence of explicit awareness of the base pairs. However, participants failed to infer the transitive pair from three base pairs (Experiment 2), showing the limits of the transitive inference (Experiment 3). We further demonstrated that this transitive inference can operate across the categorical hierarchy (Experiments 4-7). The findings revealed a novel consequence of statistical learning in which new transitive associations between objects are implicitly inferred.

Affective decision-making moderates the effects of automatic associations on alcohol use among drug offenders.

BACKGROUND: This study used a dual-process model of cognition in order to investigate the possible influence of automatic and deliberative processes on lifetime alcohol use in a sample of drug offenders. OBJECTIVE: The objective was to determine if automatic/implicit associations in memory can exert an influence over an individual's alcohol use and if decision-making ability could potentially modify the influence of these associations. METHODS: 168 participants completed a battery of cognitive tests measuring implicit alcohol associations in memory (verb generation) as well as their affective decision-making ability (Iowa Gambling Task). Structural equation modeling procedures were used to test the relationship between implicit associations, decision-making, and lifetime alcohol use. RESULTS: Results revealed that among participants with lower levels of decision-making, implicit alcohol associations more strongly predicted higher lifetime alcohol use. CONCLUSION: These findings provide further support for the interaction between a specific decision function and its influence over automatic processes in regulating alcohol use behavior in a risky population. Understanding the interaction between automatic associations and decision processes may aid in developing more effective intervention components.

Thinking high but feeling low: An exploratory cluster analysis investigating how implicit and explicit spider fear co-vary.

Research has demonstrated large differences in the degree to which direct and indirect measures predict each other and variables including behavioural approach and attentional bias. We investigated whether individual differences in the co-variance of "implicit" and "explicit" spider fear exist, and whether this covariation exerts an effect on spider fear-related outcomes. One hundred and thirty-two undergraduate students completed direct and indirect measures of spider fear/avoidance, self-report questionnaires of psychopathology, an attentional bias task, and a proxy Behavioural Approach Task. TwoStep cluster analysis using implicit and explicit spider fear as criterion variables resulted in three clusters: (1) low explicit/low implicit; (2) average explicit/high implicit; and (3) high explicit/low implicit. Clusters with higher explicit fear demonstrated greater disgust propensity and sensitivity and less willingness to approach a spider. No differences between clusters emerged on anticipatory approach anxiety or attentional bias. We discuss results in terms of dual-systems and cognitive-behavioural models of fear.

Acute Effects of Intoxication and Arousal on Approach/Avoidance Biases Toward Sexual Risk Stimuli in Heterosexual Men.

This study tested the effects of alcohol intoxication and physiological arousal on cognitive biases toward erotic stimuli and condoms. Ninety-seven heterosexual men were randomized to 1 of 6 independent conditions in a 2 (high arousal or control) × 3 (alcohol target BAC = 0.08, placebo, or juice control) design and then completed a variant of the Approach-Avoidance Task (AAT). The AAT assessed reaction times toward approaching and avoiding erotic stimuli and condoms with a joystick. Consistent with hypotheses, the alcohol condition exhibited an approach bias toward erotic stimuli, whereas the control and placebo groups exhibited an approach bias toward condom stimuli. Similarly, the participants in the high arousal condition exhibited an approach bias toward erotic stimuli and the low arousal control condition exhibited an approach bias toward condoms. The results suggest that acute changes in intoxication and physiological arousal independently foster biased responding toward sexual stimuli and these biases are associated with sexual risk intentions.

The Role of Emotion Regulation Difficulties in the Relation Between PTSD Symptoms and the Learned Association Between Trauma-Related and Cocaine Cues.

BACKGROUND: PTSD and cocaine dependence frequently co-occur. However, few studies have specifically examined the functional relation between trauma-related distress and cocaine use and none have examined the extent to which PTSD is associated with a learned association between trauma cues and cocaine or the underlying role of emotion regulation difficulties in this relation. OBJECTIVES: Thus, this study used a novel version of the Implicit Association Test (IAT) to examine the relation of PTSD symptoms to the strength of the trauma-cocaine cue association and the role of specific emotion regulation difficulties in this relation. METHODS: A sample of 42 cocaine-dependent inpatients with a history of interpersonal traumatic exposure were recruited. Participants completed a series of questionnaires assessing PTSD symptom severity and emotion regulation difficulties. Participants then completed the IAT. RESULTS: Results revealed a significant indirect relation of PTSD symptom severity to the strength of the trauma-cocaine cue association through the specific emotion regulation dimension of difficulties controlling impulsive behaviors when distressed. Conclusion/Importance: Results build upon extant research suggesting that factors related to emotional responding and regulation may underlie the relation between trauma-cue exposure and responses to cocaine cues among cocaine dependent patients with PTSD. The finding that PTSD symptom severity is associated with the strength of the trauma-cocaine cue association through one particular dimension of emotion regulation difficulties, difficulties controlling impulsive behaviors when distressed, highlight the potential utility of interventions focused on improving emotion regulation and impulse control abilities among trauma-exposed cocaine dependent patients.

Flashbulb memories of the Pope's resignation: explicit and implicit measures across differing religious groups.

In the present paper, we aimed to provide evidence in support of the idea tested in a recent study by Lanciano and colleagues that flashbulb memories (FBMs) are a special class of autobiographical memories that can be assessed through the autobiographical implicit association test (aIAT). FBMs and event memories (EMs) for the news of the resignation of Pope Benedict XVI were evaluated in three samples of churchgoer Catholic, non-churchgoer Catholic and Evangelical Italian participants through the traditional self-report measures (specificity/accuracy, confidence, consistency) and aIAT indices. Results confirmed the strength of the association between FBM and true information. The aIAT effect was stronger for FBMs than for EM details, and for Catholic respondents who were the group most concerned by the original event. Furthermore, the use of implicit measures for memory assessment concurs with the traditional self-report indices of FBMs. The present evidence supports the idea that FBMs are special autobiographical memories which remain detailed, certain and consistent over time.

Event familiarity influences memory detection using the aIAT.

The developers of the autobiographical Implicit Association Test (aIAT) describe it as a possible memory detection tool. This claim rests on the assumption the aIAT can reliably and automatically detect the accuracy of autobiographical events. However, the aIAT may be susceptible to factors that affect the assessment of truth vs. falseness, such as the relative familiarity of those events. We compared aIAT performance when participants reported recent vs. childhood autobiographical events, and when participants imagined vs. did not imagine a fabricated autobiographical event. The aIAT was less effective at distinguishing between real and fabricated events from childhood, compared to recent real and fabricated events. Imagining a fabricated event did not affect aIAT performance; however, there was a trend in the data suggesting imagination may have reduced the effect of event recency. Our results provide further evidence that reducing or enhancing source confusion-via familiarity-can influence the predictive value of the aIAT.

Functional imaging of an alcohol-Implicit Association Test (IAT).

This research assessed activation in neural substrates involved in implicit associative processes through functional magnetic resonance imaging of an alcohol-Implicit Association Test (IAT) focused on positive outcomes of alcohol use. Comparisons involved 17 heavy and 19 light drinkers, ranging in age from 18 to 22, during compatible and incompatible association task trials. Behaviorally, a significant IAT effect was found with heavy drinkers showing stronger positive implicit associations toward alcohol use than light drinkers. Imaging data revealed heavy drinkers showed greater activity during compatible trials relative to incompatible trials in the left putamen and insula while no significant difference in activity between conditions was found in the light drinkers. Light drinkers showed significantly more activity in the left orbital frontal cortex during both compatible and incompatible trials than heavy drinkers, and the dorsolateral prefrontal cortex was engaged more in both light and heavy drinkers during incompatible trials relative to compatible trials. Further, within-group analyses showed significant amygdala activity along with the putamen and insula among heavy drinkers during compatible trials relative to incompatible trials. These results are consistent with a dual process framework of appetitive behaviors proposing that (1) implicit associations underlying habit are mediated through neural circuitry dependent on the striatum, and (2) controlled behaviors are mediated through neural circuitry more dependent on the prefrontal cortex. This is the first study to evaluate the neural mechanisms elicited by an alcohol-IAT, providing an additional step toward increasing understanding of associative habit processes and their regulatory influence over addictive behaviors.

Uncovering the potential of evaluative conditioning in shaping attitudes toward sustainable product packaging.

Introduction: The necessity to promote pro-environmental behavior change in individuals and society is increasingly evident. This study aimed to investigate the effect of evaluative conditioning on consumers' perception of product packaging. Methods: We first produced two stimulus sets: one including images of supermarket products with different packaging and the other containing affective images of healthy nature (positive) and climate change impact (negative). These images were then paired in an evaluative conditioning experiment where respondents were informed about the impact of product packaging. Results: We found an effect of conditioning depending on the initial sustainability perception that participants had toward product packaging. Pairing products for which participants were uncertain about their sustainability with negative or positive affective images had a significant effect on the sustainable associations of the consumers in a negative or positive direction, respectively. However, the impact of conditioning on products that clearly had (un)sustainable packaging was not that strong. Discussion: These results provide new tools and evidence to further investigate the power of evaluative conditioning in pro-environmental attitude and behavior change.

Implicit measures of suicide vulnerability: Investigating suicide-related information-processing biases and a deficit in behavioral impulse control in a high-risk sample and healthy controls.

OBJECTIVE: Relevant implicit markers of suicidal thoughts and behaviors (STBs) have only been studied in isolation with mixed evidence. This is the first study that investigated a suicide attentional bias, a death-identity bias and a deficit in behavioral impulsivity in a high-risk sample and healthy controls. METHOD: We administered the Death Implicit Association Test, the Modified Suicide Stroop Task, and a Go/No-Go Task to inpatient suicide ideators (n = 42), suicide attempters (n = 40), and community controls (n = 61). RESULTS: Suicide ideators and attempters showed a suicide attentional bias and a death-identity bias compared to healthy controls. Ideators and attempters did not differ in these implicit information-processing biases. Notably, only attempters were more behaviorally impulsive compared to controls; however, ideators and attempters did not significantly differ in behavioral impulsivity. Moreover, implicit scores were positively intercorrelated in the total sample. CONCLUSION: In line with the Cognitive Model of Suicide, ideators and attempters display suicide-related information processing biases, which can be considered as implicit cognitive markers of suicide vulnerability. Furthermore, attempters have elevated levels of behavioral impulsiveness. These results are highly relevant in the context of crisis intervention strategies and warrant further research.

Unraveling sexual associations in contact and noncontact child sex offenders using the single category - implicit association test.

Previous studies found associations between children and sex in child sex offenders (CSOs) using the Implicit Association Test (IAT). We used a modification of this task, the Single Category-Implicit Association Test (SC-IAT) to unravel child-sex associations in CSOs. Using the SC-IAT, we were able to test whether CSOs indeed hold stronger child-sex associations relative to adult-sex associations, compared to adult sex offenders and nonoffenders. Furthermore, we examined whether contact CSOs differed from noncontact CSOs in their child-sex associations. The hypothesis that CSOs would have stronger child-sex associations, relative to their adult-sex associations, than adult sex offenders and nonoffenders was confirmed. No difference between contact CSOs and noncontact CSOs was found. Although the Sex SC-IAT was able to distinguish CSOs from nonoffenders, the sensitivity and specificity of the test was poor (AUC of .65) and needs refinement. The results of this study support the existence of a child-sex association as a distinctive characteristic of CSOs. These findings are discussed in the context of theories on deviant cognitions in CSOs and risk for sexual offending.