Motor simulation in verbal knowledge acquisition

Recent research highlights the importance of motor processes for a wide range of cognitive functions such as object perception and language comprehension. It is unclear, however, whether the involvement of the motor system goes beyond the processing of information that is gathered through active action experiences and affects also the representation of knowledge acquired through verbal learning. We tested this prediction by varying the presence of motor interference (i.e., squeezing a ball vs. oddball detection task) while participants verbally acquired functional object knowledge and examined the effects on a subsequent object detection task. Results revealed that learning of functional object knowledge was only impaired when participants performed an effector-specific motor task while training. The present finding of an effector-specific motor interference effect on object learning demonstrates the crucial role of the motor system in the acquisition of novel object knowledge and provides support for an embodied account to perception and cognition.     

Questioning implicit motor learning as instantiated by the pursuit-tracking task

The effect of concurrent visual feedback on the implicit learning of repeated segments in a task of pursuit tracking has been tested. Although this feedback makes it possible to regulate the positional error during the movement, it could also induce negative guidance effects. To test this hypothesis, a first set of participants (N?=?42) were assigned to two groups, which performed either the standard pursuit-tracking task based on the experimental paradigm of Pew (1974 Pew, R. W. 1974. Levels of analysis in motor control. Brain Research, 71: 393–400. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; group F-ST), or a task called “movement reproduction” in which the feedback was suppressed (group noF-ST). A second set of participants (N?=?26) performed in the same feedback condition groups but in a dual-task situation (F-DT and noF-DT; Experiment 2). The results appear to confirm our predictions since the participants in groups without feedback, contrary to those in groups with feedback, succeeded with practice in differentiating their performances as a function of the nature of the segments (repeated or nonrepeated) both in simple (Experiment 1) and in dual-task (Experiment 2) situations. These experiments indicate that the feedback in the pursuit-tracking task induces a guidance function potentially resulting in an easiness tracking that prevents the participants from learning the repetition.     

Make the manikin move: Symbolic approach–avoidance responses affect implicit and explicit face evaluations

The present research aimed to replicate and extend findings of Huijding, Muris, Lester, Field, and Joosse (2011), investigating whether symbolic approach–avoidance responses can induce implicit and explicit evaluation biases. Faces with a neutral expression were shown on a computer screen, and participants were instructed to repeatedly move a manikin towards some faces (approach) and away from other faces (avoidance). An affective priming task and a face rating task were used to assess training-compatible differences in implicit and explicit face evaluations, respectively. Results showed that the manikin training was successful: The priming task revealed more positive implicit evaluations of approached than avoided faces, and approached faces were rated more positively than avoided ones in the face rating task. These findings replicate those of Huijding and colleagues by demonstrating training effects on explicit evaluations, and they extend them by demonstrating effects on implicit evaluations.     

Visual context does not promote concurrent sequence learning

Concurrent sequence learning (CSL) of two or more sequences refers to the concurrent maintenance, in memory, of the two or more sequence representations. Research using the serial reaction time task has established that CSL is possible when the different sequences involve different dimensions (e.g., visuospatial locations versus manual keypresses). Recently some studies have suggested that visual context can promote CSL if the different sequences are embedded in different visual contexts. The results of these studies have been difficult to interpret because of various limitations. Addressing the limitations, the current study suggests that visual context does not promote CSL and that CSL may not be possible when the different sequences involve the same elements (i.e., the same target locations, response keys and effectors).     

Judgments of Aggressive, Withdrawn and Prosocial Behavior: Perceived Control, Anger, Pity and Sympathy in Young Dutch Children

In two studies, we examined first- and second-grade children's judgments of aggressive, withdrawn, and prosocial behavior by means of fictional scenarios. In study I, we compared judgments of fictional aggressive children with those of fictional withdrawn children. Aggressive children were perceived as more responsible for their behavior and elicited more feelings of anger, while withdrawn children were more likely to be chosen as a friend and elicited more feelings of pity. In study II, we compared judgments of fictional aggressive, withdrawn, and prosocial children with each other. Again aggressive children elicited the strongest feelings of anger, while withdrawn children elicited the strongest feelings of pity. These withdrawn children were perceived as more similar to the prosocial children. In an attempt to test the ecological validity of our sympathy measure, we asked children to rate their peers on a three-point liking scale and checked the scores of those judged to be aggressive by their teachers. These aggressive children were found to receive the lowest liking scores. The results are discussed.     

Failures to induce implicit evaluations by means of approach–avoid training

Woud, Becker, and Rinck (2008) asked participants to repeatedly push pictures of certain faces away and to pull pictures of other faces towards them using a joystick. Performance in a subsequent affective priming task showed that previously pulled faces evoked more positive implicit evaluations then previously pushed faces. We report five studies in which we failed to find consistent evidence for the effect of approach–avoid training on implicit evaluations. We also failed to reproduce the effect reported by Woud et al. when reanalysing their data. An overall analysis that included our data, the data of Woud et al. and additional data provided by Woud and colleagues also did not reveal a significant effect of approach–avoid training on implicit evaluations. We conclude that the impact of approach–avoid training on implicit evaluations is subject to subtle boundary conditions.     

Skepticism: Genuine unbelief or implicit beliefs in the supernatural?

We examined whether skeptics hold implicit supernatural beliefs or implicit cognitive underpinnings of the beliefs. In study 1 (N = 57), participants read a biological or a religious story about death. The story content had no effect on skeptics’ (or believers’) afterlife beliefs. Study 2 examined the relationships between religious and non-religious paranormal beliefs and implicit views about whether supernatural and religious phenomena are imaginary or real (n1 = 33, n2 = 31). The less supernatural beliefs were endorsed the easier it was to connect “supernatural” with “imaginary”. Study 3 (N = 63) investigated whether participants’ supernatural beliefs and ontological confusions differ between speeded and non-speeded response conditions. Only non-analytical skeptics’ ontological confusions increased in speeded conditions. The results indicate that skeptics overall do not hold implicit supernatural beliefs, but that non-analytically thinking skeptics may, under supporting conditions, be prone to biases that predispose to supernatural beliefs.     

Validation française de l’Inventaire d’Attitudes Environnementales

IntroductionClimate change has made it necessary to develop valid tools for studying pro-environmental behaviors.ObjectivesThe present study assessed the validity of the French translation of the brief version of Milfont and Duckitt's (2010) Environmental Attitudes Inventory. We chose this scale for its psychometric properties, its ability to predict behaviors, its theoretical foundations, and its use in many countries. In addition to the translation, we tested a shortened, 12-item version of the scale.MethodThree samples were used to study the structure of the IAE, its nomological network, its test–retest fidelity, and its predictive validity.ResultsIAE-24 has similar psychometric properties to the original version, for both one-factor and two-factor models (preservation and utilization dimensions). IAE-12 has satisfactory internal consistency if the one-factor model is used. The nomological network of IAE-24 is not totally identical to the original version. Differences can be ascribed to inconsistencies in the literature and the use of different scales. Both IAE-24 and IAE-12 have very satisfactory predictive validity and test–retest reliability.ConclusionThe French version of the IAE has satisfactory psychometric properties.     

Double dissociation between implicit and explicit affiliative motives: A closer look at socializing behavior in dyadic interactions

In the present research, we followed two objectives. First, we aimed to replicate the classic finding by McAdams, Jackson, and Kirshnit (1984) that strong implicit affiliative motives predict high levels of nonverbal socializing behavior (eye contact, laughing, smiling) in dyadic interactions with an unacquainted person. Second, we applied a dual-motives perspective and hypothesized a double dissociation between implicit and explicit motives. Whereas implicit motives were supposed to predict nonverbal socializing, the corresponding explicit motives were supposed to predict verbal socializing (i.e., self-disclosure). Using observational data from 123 university students in ostensibly casual conversations, the findings by McAdams et al. were replicated, and the double-dissociation hypothesis was confirmed. These results corroborate dual-motives theory in the domain of affiliative motivation.