Health warning labels modify implicit and explicit responses to snack foods through model-free and model-based changes in motivation

Health warning labels (HWLs) show promise in reducing motivation towards energy-dense snack foods. Understanding the underlying mechanisms could optimise their effectiveness. In two studies we compared effects of HWLs and irrelevant aversive labels (IALs) on implicit (approach) and explicit (choice) motivation towards unhealthy snacks. We examined whether labelling effects on motivation arose from the creation of outcome-dependent associations between the food and its health consequences (model-based effects) or from simple, non-specific aversive associations (model-free effects). Both label types reduced motivation towards snack foods but only when the label was physically present. HWLs and IALs showed similar effects on implicit motivation, although HWLs reduced explicit motivation more than IALs. Thus, aversive HWLs affect both model-free and model-based processes, the former through low level associative mechanisms affecting implicit motivation, the latter by emphasizing explicit causal links to health outcomes thereby affecting explicitly motivated choice behaviours.

The Role of Psychology According to Edith Stein

To understand the role of psychology as science according Edith Stein, we have to clarify the main features of her philosophical anthropology. Through the phenomenological analysis of the lived experiences she discovers the complex structure of the human being: the bodily, the psychic, and the spiritual life. The psychic level is ruled by causality, but it is different from the causality that we find in the nature, because it is not deterministic. In the psyche there is also an implicit motivation, but the explicit one is present in the spiritual life. For this reason, according to her, psychology, even if it is the science of the psyche, cannot avoid dealing with the spiritual aspect of the human being. Stein’s position is very important in order to grasp the limits of a psychology that follows the model of natural sciences.

Top-down expectation effects of food labels on motivation

When we buy our food, the information on the package informs us about the properties of the product, such as its taste and healthiness. These beliefs can influence the processing of food rewards and impact decision making beyond objective sensory properties. However, no studies, within or beyond the food domain, have assessed how written information, such as food labels, affect implicit motivation to obtain rewards, even though choices in daily life might be strongly driven by implicit motivational biases. We investigated how written information affects implicit motivation to obtain food rewards. We used food labels (high- and low-calorie), associated with an identical lemonade, to study motivation for food rewards during fMRI. In a joystick task, hungry participants (N=31) were instructed to make fast approach or avoid movements to earn the cued drinks. Behaviorally, we found a general approach bias, which was stronger for the drink that was most preferred during a subsequent choice test, i.e. the one labeled as low-calorie. This behavioral effect was accompanied by increased BOLD signal in the sensorimotor cortex during the response phase of the task for the preferred, low-calorie drink compared with the non-preferred, high-calorie drink. During the anticipation phase, the non-preferred, high-calorie drink label elicited stronger fMRI signal in the right ventral anterior insula, a region associated with aversion and taste intensity, than the preferred, low-calorie label. Together, these data suggest that high-calorie labeling can increase avoidance of drinks and reduce neural activity in brain regions associated with motor control. In conclusion, we show effects of food labeling on fMRI responses during anticipation and subsequent motivated action and on behavior, in the absence of objective taste differences, demonstrating the influence of written information on implicit biases. These findings contribute to our understanding of implicit biases in real-life eating behavior.

Acute alcohol effects on explicit and implicit motivation to drink alcohol in socially drinking adolescents

Alcohol-related cues can evoke explicit and implicit motivation to drink alcohol. Concerning the links between explicit and implicit motivation, there are mixed findings. Therefore, we investigated both concepts in 51 healthy 18- to 19-year-old males, who are less affected by neuropsychological deficits in decision-making that are attributed to previous alcohol exposure than older participants. In a randomized crossover design, adolescents were infused with either alcohol or placebo. Self-ratings of alcohol desire, thirst, well-being and alcohol effects comprised our explicit measures of motivation. To measure implicit motivation, we used money and drink stimuli in a Pavlovian conditioning (Pc) task and an Approach-Avoidance Task (AAT). Alcohol administration increased explicit motivation to drink alcohol, reduced Pc choices of alcoholic drink-conditioned stimuli, but had no effect on the AAT. This combination of results might be explained by differences between goal-directed and habitual behavior or a temporary reduction in rewarding outcome expectancies. Further, there was no association between our measures of motivation to drink alcohol, indicating that both self-reported motivation to drink and implicit approach tendencies may independently contribute to adolescents’ actual alcohol intake. Correlations between Alcohol Use Disorders Identification Test (AUDIT) scores and our measures of motivation to drink alcohol suggest that interventions should target high-risk adolescents after alcohol intake. Clinical trials: Project 4: Acute Effects of Alcohol on Learning and Habitization in Healthy Young Adults (LeAD_P4); NCT01858818; https://clinicaltrials.gov/ct2/show/NCT01858818

Cultural Transmission of Precautionary Ideas: The Weighted Role of Implicit Motivation

Inspired by the idea that cognitive systems evoke cultural phenomena, this study tested a theory suggesting precautionary cognitive mechanisms as both a constraint and an enabler of transmission of cultural concepts such as religious rituals. Using ‘restricted range of themes’ as a link between precautionary cognition and religious rituals, this cross cultural study of Zulu communities in sa tested people’s inferences about implications of failure to perform life-stage rituals in order to identify the nature of the presence of precautionary themes in Zulu rituals and any involvement of environmental factors. The results reflected inferences rather than echoing of formal descriptions of rituals, and revealed a consistent affinity between certain threat-domains and specific Zulu rituals: birth and early age rituals evoked the Contamination/Contagion domain, women’s maturity rituals evoked the Decline in Resources domain, marital rituals evoked a mixture of Decline in Resources and Loss of Status domains, and death rituals evoked the Predation/Assault domain. This suggests that precautionary cognition effect on religious rituals is mediated by life-history strategy rather than by ecology factors, and also, that understanding precautionary cognition is crucial for uncovering the real motivations for religious behaviour, as direct reports cannot be taken at face value.

Need for Power Predicts Career Intent in University Students

Previous research has indicated robust relationships between implicit motives and various indices of career preference and performance, with the implicit need for power ( nPow) and the implicit need for achievement ( nAch) found to associate with leadership and entrepreneurship, respectively. However, relatively little work has examined the relationships between implicit motivation and career intention. In the present study, 149 university students completed questionnaires assessing their intention to embark on entrepreneurial, professional, or leadership careers, while implicit motivation was measured using the picture story exercise. nPow was found to positively predict entrepreneurial intent and to negatively predict professional intent, while higher nPow was positively associated with both entrepreneurial and leadership career choice. nAch did not associate significantly with any of the intent or choice measures. These results tentatively suggest a previously undocumented relationship between nPow and entrepreneurial ambition, and possible differences in the motivational profiles of aspiring and actual entrepreneurs.