Development of implicit and explicit category learning

We present two studies that examined developmental differences in the implicit and explicit acquisition of category knowledge. College-attending adults consistently outperformed school-age children on two separate information-integration paradigms due to children’s more frequent use of an explicit rule-based strategy. Accuracy rates were also higher for adults on a unidimensional rule-based task due to children’s more frequent use of the irrelevant dimension to guide their behavior. Results across these two studies suggest that the ability to learn categorization structures may be dependent on a child’s ability to inhibit output from the explicit system.     

The relationship between implicit and explicit motives, goal pursuit, and autobiographical memory content during a diary study

This online diary study investigated how motives interact with goal pursuit to predict daily autobiographical experiences. Participants (N = 141) completed measures of implicit and explicit achievement, provided daily memories and reports of their goal pursuit during a 3-week diary period. A stronger implicit achievement motive at the onset of the study was associated with more agentic (and fewer communal) autobiographical content. Goal progress was linked with using more agentic words, while goal attainability was related to using more communal words. Interactions between motives and goal pursuit on autobiographical memory suggests a trade-off: Favorable goal pursuit conditions may prompt people not motivated for achievement to shift their focus from agentic to communal themes, while individuals motivated for achievement maintain their priorities.     

Impressions of World of Warcraft players’ personalities based on their usernames: Interobserver consensus but no accuracy

Millions of people interact in the context of massively-multi-player-online-role-play-games (MMORPGs). Here we address whether MMORPG usernames convey accurate information about users’ personalities. Impressions based on email addresses show some accuracy but MMORPG’s are different because they provide little accountability, with little expectation that users will ever meet in person. We assessed consensus and accuracy in impressions based on 1357 (153 females) World of Warcraft users. Ratings of the usernames in terms of the Big Five dimensions yielded strong consensus (mean ICC = .46) but low accuracy (mean r = .01). Lens-model analysis suggest that features of the usernames have little validity, but observers used them anyway. Discussion focuses on why results might differ from those based on email addresses.     

Control cognitions and causal attributions as predictors of fatigue severity in a community sample

Control cognitions and causal attributions of fatigue were examined in relation to Weiner's Causal Attribution theory in a community sample. Participants were 97 females and 43 males, aged 18-83 years. Weiner's dimensions of stability and uncontrollability and physical and psychosocial attributions of fatigue were related to fatigue severity. Escape-avoidance coping mediated between psychosocial causal attributions of fatigue to fatigue; whereas planful problem-solving and exercise moderated between stability cognitions to fatigue and psychosocial attributions of fatigue to fatigue, respectively. This, the cause(s) of fatigue were perceived as stable, uncontrollable, and involving physical and psychosocial factors, participants reported worse fatigue. Taken together, the results suggest that fatigue treatments may be most effective when they are tailored or matched to the belief systems of the individuals with fatigue.     

Judgment Difficulty and the Moral Intensity of Unethical Acts: A Cognitive Response Analysis of Dual Process Ethical Judgment Formation

This study analyzes cognitive responses to explore a dual processing perspective of ethical judgment formation. Specifically, the study investigates how two factors, judgment task difficulty and moral intensity, influence the extent of deontological and teleological processing and their effects on ethical judgments. A single experiment on 110 undergraduate research participants found that judgment task difficulty affected the extent of deontological and teleological processing. Although moral intensity affected ethical judgments, it did not produce effects on either deontological or teleological cognitive responses. Results did not support the hypotheses that deontological and teleological cognitive responses would mediate the relationships between the experimental factors and ethical judgments. Overall, the results support continued research of factors that affect the nature of information processing in ethical decision situations and the use of cognitive response analysis as a tool for conducting this research.     

Implicit visual learning: How the task set modulates learning by determining the stimulus–response binding

Implicit learning is one of the most fundamental learning mechanisms that enables humans to adapt to regularities inherent in the environment. Despite its high flexibility, it depends on constraints, such as selective attention. Here, we focused on the stimulus-to-response binding which defines the dimensions of the stimuli and the responses participants attend to. In a serial reaction time task with a visual sequence, we investigated whether this stimulus–response binding influences the amount of sequence learning. The results of Experiments 1 and 2 showed that visual sequence learning is reduced when participants do not attend to the relevant response dimension. Furthermore, the findings of Experiment 3 suggest that attention to the relevant response dimension increased the development of explicit knowledge without affecting implicit knowledge. This latter finding is difficult to reconcile with the assumption that explicit learning results from the gradual strengthening of sequence representations.     

Emotional Salience and the Isolation Effect

When a homogeneous list contains a few items that are different from the rest of the items in the list, these isolated items show enhanced recall compared to the same items in a list where these items are not isolated. This phenomenon, known as the isolation effect, has been explained on the basis of isolated items eliciting salience. In this experiment, negative pictures and neutral pictures were isolated at the early and late part of the list. The salience explanation would predict that participants would pay more attention to these isolated items resulting in higher judgments of learning (JOL) ratings compared to the same items in the control list. Negative pictures showed the isolation effect for both early and late isolation; however, for early isolation, JOL was similar between the isolated and non-isolated pictures indicating that the emotional isolation effect does not require emotional salience.     

To belief or not belief: Children’s theory of mind

This paper provides a minimalist framework for understanding the development of children’s theory of mind (ToM). First, I provide a critical analysis of rich interpretations of ToM tasks tapping infants’ understanding of perception, goals, intentions, and false beliefs. I argue that the current consensus that infants understand mental states is premature, and instead, that excellent statistical learning skills and attention to human faces and motion enable infants’ very good performance, and reflect an implicit understanding of behavior. Children subsequently develop an explicit understanding of mental states through talk from parents and siblings, their developing language abilities, and their developing distinction between self and other. The paper also examines corollary theories such as the idea that there are subsystems of a theory of mind (ToM), that infants use rules on false belief tasks, that minimalist theory is post hoc, and that parallel onset of success on different ToM tasks indicates an underlying ToM. The paper concludes by considering previous arguments against minimalist interpretations of infant performance.     

Cognitive control in cued task switching with transition cues: Cue processing,task processing,and cue–task transition congruency

We investigated the processes underlying performance during cued task switching with transition cues. To this end, transition cueing and explicit cueing were compared in a design controlling for sequential effects in the two preceding trials in order to further examine the contribution of cue processes, task processes, and cue–task transition congruency during transition cueing. The study confirmed that the task-switch cost in transition cueing is larger than the task-switch cost in explicit cueing and showed that this larger switch cost is mainly due to cue processing. We also successfully decomposed performance in transition cueing into cue processing, task processing, and cue–task transition congruency on both a theoretical (Experiment 1) and an empirical basis (Experiments 2–3). Our empirical dissociation also demonstrates that cue–task transition congruency affects performance during both cue processing and task processing. We discuss the importance of our findings in relation to the different theories on task switching.