Handedness and Reach-to-Place Kinematics in Adults: Left-Handers Are Not Reversed Right-Handers

The primary goal of this study was to examine the relations between limb control and handedness in adults. Participants were categorized as left or right handed for analyses using the Edinburgh Handedness Inventory. Three-dimensional recordings were made of each arm on two reach-to-place tasks: adults reached to a ball and placed it into the opening of a toy (fitting task), or reached to a Cheerio inside a cup, which they placed on a designated mark after each trial (cup task). We hypothesized that limb control and handedness were related, and we predicted that we would observe side differences favoring the dominant limb based on the dynamic dominance hypothesis of motor lateralization. Specifically, we predicted that the dominant limb would be straighter and smoother on both tasks compared with the nondominant limb (i.e., right arm in right-handers and left arm in left-handers). Our results only partially supported these predictions for right-handers, but not for left-handers. When differences between hands were observed, the right hand was favored regardless of handedness group. Our findings suggest that left-handers are not reversed right-handers when compared on interlimb kinematics for reach-to-place tasks, and reaffirm that task selection is critical when evaluating manual asymmetries.     

A sound effect: Exploration of the distinctiveness advantage in voice recognition

Two experiments are presented, which explore the presence of a distinctiveness advantage when recognising unfamiliar voices. In Experiment 1, distinctive voices were recognised significantly better, and with greater confidence, in a sequential same/different matching task compared with typical voices. These effects were replicated and extended in Experiment 2, as distinctive voices were recognised better even under challenging listening conditions imposed by nonsense sentences and temporal reversal. Taken together, the results aligned well with similar results when processing faces, and provided a useful point of comparison between voice and face processing.     

Associative false consumer memory: effects of need for cognition and encoding task

Two experiments investigated the effects of product–attribute associations on false consumer memory. In both experiments, subjects were presented with sets of related product attributes under incidental encoding conditions. Later, recognition memory was tested with studied attributes, non-studied but associated attributes (critical lures) and non-studied unrelated attributes. In Experiment 1, the effect of Need for Cognition (NFC) was assessed. It was found that individuals high in NFC recognised more presented attributes and falsely recognised more associative critical lures. The increase in both true and associative false memory was accompanied by a greater number of responses that index the retrieval of detailed episodic-like information. Experiment 2, replicated the main findings through an experimental manipulation of the encoding task that required subjects to consider purchase likelihood. Explanations for these findings are considered from the perspective of activation processes and knowledge structures in the form of gist-based representations.     

You meta believe it

Because of the privileged place of beliefs in explaining behaviour, mismatch cases—in which agents sincerely claim to believe that p, but act in a way that is inconsistent with that belief—have attracted a great deal of attention. In this paper, I argue that some of these cases, at least, are at least partially explained by agents believing that they believe that p, while failing to believe that p. Agents in these cases do not believe that ~p; rather, they have an indistinct first‐order, beliefy, representation that p. The indistinctness of this first‐order representation provides the leeway for the inconsistency seen in their behaviour.     

Investigating Individual Differences in Toddler Search with Mixture Models

Children's performance on cognitive tasks is often described in categorical terms in that a child is described as either passing or failing a test, or knowing or not knowing some concept. We used binomial mixture models to determine whether individual children could be classified as passing or failing two search tasks, the DeLoache model room task and the Berthier et al. door task. The data support categorical classification of the children and suggest that the increase in average proportion correct with age is the result of an increasing proportion of children who can solve the tasks. Performance on the two tasks was concordant, and improving performance could be due to advances in a single psychological ability, such as cognitive control. Copyright © 2014 John Wiley & Sons, Ltd.     

Individual Differences in Commitment to Value‐Based Beliefs and the Amplification of Perceived Belief Dissimilarity Effects

The commitment to beliefs (CTB) framework (Maxwell‐Smith & Esses, 2012) proposes that there are individual differences in the extent to which people generally follow beliefs that are a reflection of their values. The current research hypothesized that CTB would amplify the effects of perceived belief dissimilarity or incompatibility, such that individuals higher in CTB would display more pronounced reactions to belief‐relevant groups, events, or individuals seen as incompatible with their value‐based beliefs. We tested our hypothesis in three studies that assessed participants' CTB and their perceptions of belief dissimilarity or incompatibility with regard to other religious groups (Study 1), political parties during a national election (Study 2), and their romantic partner (Study 3). CTB amplified the effects of perceived belief dissimilarity or incompatibility on people's biases toward other religious groups, voting intentions and behavior in a national election, and their evaluative and behavioral responses toward their romantic partner. These results collectively suggest that perceptions of belief dissimilarity or incompatibility are particularly important cues for individuals with higher levels of CTB as they encounter other people or events that are relevant to their beliefs.     

Millon's Contributions to Preadolescent and Adolescent Personality Assessment: Searching Onward and Upward

Theodore Millon was one of the most influential personality theorists of the 20th century. His theory was originally rooted in biosocial learning models and later reconceptualized as an evolutionary model. This foundation of Millon's work encompasses the entire life span. He had a genuine concern for humankind, especially children. His theory encompasses a comprehensive understanding of the relationship among childhood experiences, parenting styles, and recurring events throughout the life span in shaping the personality. Notable contributions to child and adolescent assessment are the Millon Adolescent Personality Inventory (Millon, Green, & Meagher, 1982 Millon, T., Green, C., & Meagher, R. B. (1982). Millon Adolescent Personality Inventory manual. Minneapolis, MN: National Computer Systems. [Google Scholar]), the Millon Adolescent Clinical Inventory (Millon, Millon, & Davis, 1993 Millon, T., Millon, C., & Davis, R. (1993). Millon Adolescent Clinical Inventory manual. Minneapolis, MN: National Computer Systems. [Google Scholar]), and the Millon Pre-Adolescent Clinical Inventory (M–PACI; Millon, Tringone, Millon, & Grossman, 2005 Millon, T., Tringone, R., Millon, C., & Grossman, S. (2005). Millon Pre-Adolescent Clinical Inventory manual. Minneapolis, MN: Pearson. [Google Scholar]). Given Millon's influence on the personality disorders section of the Diagnostic and Statistical Manual of Mental Disorders (DSM), the aforementioned instruments have personality constructs tied to familiar DSM categories, and among them, cover the age range of 9 to 18 years old. His development of the Millon Inventories revolutionized personality assessment in the United States and abroad. Millon's legacies will live on through his works and through the respect and compassion he demonstrated toward others.     

Neither Fish nor Fowl: Implicit Attitudes as Patchy Endorsements

Implicit attitudes are mental states that appear sometimes to cause agents to act in ways that conflict with their considered beliefs. Implicit attitudes are usually held to be mere associations between representations. Recently, however, some philosophers have suggested that they are, or are very like, ordinary beliefs: they are apt to feature in properly inferential processing. This claim is important, in part because there is good reason to think that the vocabulary in which we make moral assessments of ourselves and of others is keyed to folk psychological concepts, like ‘belief’, and not to concepts that feature only in scientific psychology: if implicit attitudes are beliefs there is a prima facie case for thinking that they can serve as the basis for particular kinds of moral assessment. In this paper I argue that while implicit attitudes have propositional structure, their sensitivity and responsiveness to other mental representations is too patchy and fragmented for them to properly be considered beliefs. Instead, they are a sui generis kind of mental state, a state I dub patchy endorsements.     

Navigating Comics II: Constraints on the Reading Order of Comic Page Layouts

Although readers typically believe that comic page layouts should be read following the left to right and down ‘Z‐path’ inherited from written language, several spatial arrangements can push readers to deviate from this order. These manipulations include separating panels from each other, overlapping one panel onto another, and using a long vertical panel to the right of a vertical column to ‘block’ a horizontal row. We asked participants to order empty panels in comic page layouts that manipulated these factors. All manipulations caused participants to deviate from the conventional Z‐path, and this departure was modulated by incremental changes to spatial arrangements: The more layouts deviated from a grid, the less likely participants were to use the Z‐path. Overall, these results reinforce that various constraints push comic readers to engage with panels in predictable ways, even when deviating from the traditional Z‐path of written language. Copyright © 2014 John Wiley & Sons, Ltd.