Conscientiousness and fruit and vegetable consumption: exploring behavioural intention as a mediator

Clear associations have emerged between conscientiousness and health behaviours, such that higher levels of conscientiousness are predictive of beneficial health behaviours. This study investigated the conscientiousness-fruit and vegetable consumption relationship and whether behavioural intention mediated this relationship. A large sample of adults (N = 2136) completed an online battery of questionnaires measuring conscientiousness, behavioural intentions to consume fruit and vegetables, together with self-reported behaviour. Correlation analysis revealed that conscientiousness and each of its facets were positively associated with behavioural intention and self-reported behaviour. Hierarchical multiple regression analyses revealed that after controlling for age, gender and education, total conscientiousness, and the facets of responsibility, industriousness, order and virtue predicted self-reported behaviour. Further analysis revealed that in line with the Theory of Planned Behaviour, behavioural intention fully mediated the conscientiousness-fruit and vegetable behaviour relationship. In conclusion, low levels of conscientiousness were found to be associated with lower fruit and vegetable intentions, with the latter also associated with fruit and vegetable consumption.     

Thinking about seeing: Perceptual sources of knowledge are encoded in the theory of mind brain regions of sighted and blind adults

Blind people’s inferences about how other people see provide a window into fundamental questions about the human capacity to think about one another’s thoughts. By working with blind individuals, we can ask both what kinds of representations people form about others’ minds, and how much these representations depend on the observer having had similar mental states themselves. Thinking about others’ mental states depends on a specific group of brain regions, including the right temporo-parietal junction (RTPJ). We investigated the representations of others’ mental states in these brain regions, using multivoxel pattern analyses (MVPA). We found that, first, in the RTPJ of sighted adults, the pattern of neural response distinguished the source of the mental state (did the protagonist see or hear something?) but not the valence (did the protagonist feel good or bad?). Second, these neural representations were preserved in congenitally blind adults. These results suggest that the temporo-parietal junction contains explicit, abstract representations of features of others’ mental states, including the perceptual source. The persistence of these representations in congenitally blind adults, who have no first-person experience with sight, provides evidence that these representations emerge even in the absence of relevant first-person perceptual experiences.     

Do people automatically track others’ beliefs? Evidence from a continuous measure

Recent findings suggest that tracking others’ beliefs is not always effortful and slow, but may rely on a fast and implicit system. An untested prediction of the automatic belief tracking account is that own and others’ beliefs should be activated in parallel. We tested this prediction measuring continuous movement trajectories in a task that required deciding between two possible object locations. We independently manipulated whether participants’ belief about the object location was true or false and whether an onlooker’s belief about the object location was true or false. Manipulating whether or not the agent’s belief was ever task relevant allowed us to compare performance in an explicit and implicit version of the same task. Movement parameters revealed an influence of the onlooker’s irrelevant belief in the implicit version of the task. This provides evidence for parallel activation of own and others’ beliefs.     

Making Sense of Climate Change: How Story Frames Shape Cognition

In 2006, Adam J. Berinsky and Donald R. Kinder published findings in the Journal of Politics that demonstrated that framing news as a story influences how individuals cognitively organize concepts and information. The study presented here moves forward in this tradition. This research combines samples obtained in the springs of 2009 and 2010 while conducting online experiments. In these experiments, slightly over 2,000 respondents are asked to organize concepts presented in one of three culturally nuanced stories about climate change or where information is presented as a list. Hierarchical cluster analysis indicates that when respondents are exposed to culturally congruent stories, respondent organizational patterns are more likely to mirror the story. We discuss the implications of these findings.     

Understanding of others’ knowledge in French and Japanese children: A comparative study with a disambiguation task on 16–38-month-olds

In order to explain the cultural differences reported in the results of false-belief tasks, we attempted to verify the ‘task bias hypothesis’ suggested by certain studies (e.g. Tardif et al. (2004). Journal of Child Language, 31, 779–800; Rubio-Fernandez & Geurts (2013). Psychological Science, 24(1), 27–33. doi 10.1177/0956797612447819). At the same time, we aimed to observe the theory of mind (ToM) ability of infants and young children under the age of three in verbal communication. To this end, we propose a new protocol to test young children's ToM ability, with particular attention paid to the linguistic aspect of the task. This original disambiguation task using proper nouns (first names) was tested on a total of 32 children aged between 16 and 38 months, in France and Japan. The results revealed that after the age of 30 months children begin to correctly interpret nouns while simultaneously taking into account their partner's knowledge (50% of the French and 29% of the Japanese children were successful), whereas this remains difficult for younger children (no child under 30 months was successful). The analysis of error types has shown that ‘memory bias’ was dominant in younger children in particular and ‘association bias’ was rarely observed across all ages. Given that the results of French and Japanese children did not differ significantly, we assume that this new task design could minimise the influence of cultural difference caused by the characteristics of different languages.     

Post hoc versus predictive accounts of children’s theory of mind: A reply to Ruffman

Ruffman (2014) argues for a minimalist account of infants’ performance on theory of mind tasks. This commentary argues that because Ruffman’s minimalist account is post hoc, it neither generates testable predictions about how infants will respond in new situations, nor does it offer a coherent explanation for existing false-belief findings. An alternative, mentalist account is presented. This account integrates infancy findings with prior theory of mind literature and generates novel predictions about children’s false belief performance.     

Throwing more light on the dark side of psychopathy: An extension of previous findings for the revised Reinforcement Sensitivity Theory

Despite previous studies of psychopathy and the motivational systems of the Reinforcement Sensitivity Theory (RST) of personality, few have examined psychopathy in light of the revised RST model. In a large sample (N = 779) of young adults, we expand on Hughes, Moore, Morris, and Corr’s (2012) preliminary findings relating primary/secondary psychopathy to revised RST’s three systems: Flight-Flight-Freeze System (FFFS), Behavioral Inhibition System (BIS), and Behavioral Approach System (BAS). Converging results between Hughes et al. and the current study emphasize three major findings: (1) primary psychopathy is negatively related to the BIS as well as the FFFS; (2) primary psychopathy is positively related to goal-driven behavior of the BAS; and, (3) secondary psychopathy is positively related to impulsivity reflected in the BAS. The FFFS was incrementally predictive of primary but not secondary psychopathy. No evidence for a BAS × BIS interaction in psychopathy was found. Results are discussed in terms of future research directions.     

Keeping the reader's mind in mind: Development of perspective-taking in children's dictations

This study investigated when children can take the perspective of their reader if the information-processing demands of writing are removed by means of dictation to a scribe. Participants (N = 96) aged 5, 6 and 7 years dictated letters to an addressee who possessed requisite content knowledge, and then revised the letter or dictated a new letter to an addressee who lacked this knowledge (counterbalanced). Results showed that 19% of 5-year-olds, 41% of 6-year-olds, and 72% of 7-year-olds considered their reader's missing knowledge. Children's awareness of their reader's knowledge was neither related to performance on higher-order theory of mind tasks, nor to measures of executive function. Significantly greater perspective-taking was demonstrated in children's new letters than revised letters. However, although revision is considered a late-developing skill, half of even the 5-year-olds were able to make revisions (albeit few revisions demonstrated actual perspective-taking). Findings have significant implications for the emergent-literacy curriculum.